HOMEVidyajyothi Prof. H.J. de Silva

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Vidyajyothi Prof. H.J. de Silva

MBBS(C’bo), MD(C’bo),DPhil (Oxon.), FRCP, FCCP, FNAS (SL), Hon. FRACP,Hon. FRCP      (Thailand), Hon. FCGP(SL)
Cadre Chair and Senior Professor
(on special leave as Director Postgraduate Institute of Medicine, University of Colombo, Sri Lanka)

scholar rg 
Specialization : Internal Medicine  
Contact    
          Tel : +94 11 2953409 / 11 2961119 (Office),
  +94 777 777 862 (Residence)
 
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 Research Interests :

  • NAFLD
  • Cirrhosis and portal hypertension
  • IBD
  • Snakebite
Research Grants :
  • National Research Council, Sri Lanka ( Grant No: 13 - 108). 2013 - 2015. Genetic risk alleles for ulcerative colitis among a Sri Lankan case - control panel . SLRs. 4 , 5 00,000.
  • National Science Foundation of Sri Lanka ( Grant No: RG/2011/HS/7). 2012 - 2014. Studies on comparing immunodiagnostic methods and immune status of leptospirosis patients in Colombo and Gampaha districts. SLRs. 3,000, 000.
  • NHMRC Australia. Project Grant 1030069. Neurotoxicity after acute anticholinesterase pesticide poisoning an d envenomation. 2012 - 2015. Aus$ 970,970.
  • NHMRC Australia. Project Gra nt 631073. Does Fresh Frozen Plasma in Russells viper bite coagulopathy reduce the dose and duration of antivenom therapy? 2010 - 2012. Aus$ 600,500.
  • Japan International Co - operation Agency. NCD Prevention Project (NPP) in Sri Lanka (project #0701475). SL Rs. 9,000,000.
  • National Centre for Global Health and Medicine, Tokyo, Japan. Ragama Health Study. International Co-operation Research Grant (17-K-1). SLRs. 10,000,000.
  • World Health Organization, Department of Neglected Tropical Diseases (Obligation Number: HQ/07/073468). Estimates of the global burden of snakebite. 2007-2008. US$ 50,000.
  • National Science Foundation of Sri Lanka (Grant No: RG/2004/M/07). 2004- 2008. The relationship between bronchial asthma and upper gastro-intestinal function in a Sri Lankan population. SLRs. 647,700.00.
  • National Science Foundation of Sri Lanka (Grant no. RG/2000/EQ/05). 2001- 2004. Gastric myoelectrical activity, gastric emptying time and oro-caecal transit time in children with recurrent abdominal pain syndrome. SLRs. 975,000.00.
  • Natural Science Foundation of Sri Lanka (Grant No. RG/1998/M/13). Ambulatory esophageal manometry in chronic alcoholics. 1998-2000. SLRs.150,000.
  • World Health Organization, Intestinal Parasite Control Programme (Grant no. P21/181/63). Effect of mebendazole therapy during pregnancy on the occurrence of congenital malformations. 1996 - 1998. US$ 30,000.
  • Natural Resources, Energy and Science Authority of Sri Lanka (Grant No. RG/92/M/1). Pathogenicity and zymodeme patterns of Entamoeba histolytica isolates. 1992 - 1993. SLRs. 150,000.
Editorships :
  • Journal Reviewing. Multiple journals including Lancet, Public Library of Science, BioMed Central, BMJ, Transactions of the Royal Society of Tropical Medicine and Hygiene, Tropical Medicine and Inte rnational Health, Toxicon, Journal of Gastroenterology and Hepatology, Quarterly Journal of Medicine.
  • Grant Reviewing. Grant reviews for: National Research Council, National Scienc e Foundation and Sri Lankan Universities, Wellcome Trust.
  • Member, Editorial / International Advisory Boards :
    • Transactions of the Royal S ociety of Tropical Medicine and Hygiene 2004 - 2007
    • Alimentary Pharmacology and Therapeutics 2007 - 2011
    • Tropical Gastroenterology (New Delhi) 1995 -
    • Gastroenterology Today (New Delhi) 2000 -
    • World Journal of Gastroenterology 2001 -
    • Journal of Gastroenterology & Hepatology 2007 -
    • International Journal of Critical Illness and Injury Science 2010 -
    • Journal of Clinical and Experimental Hepatology 2010 -
    • Journal of Medical Microbiology Case reports 2013 -
    • Ceylon Medical Journal 1996 - 1998
    • The Sri Lanka Prescriber 1996 - 1999
    • Journal of the Ceylon College of Physicians 2011 -
  • Deputy Editor (2013-), Guest Associate Editor (2008-2013), PLoS Neglected Tropical Diseases
  • de Silva HJ, Abeygunasekera A (Editors). Ceylon Medical Journal (ISSN 0009- 0875). 1999 - 2014. Editor Emeritus (2014).
  • Member, International Advisory Board: Kumar and Clark’s Clinical Medicine. London: Elsevier. 2005, 2009, 2012.
  • de Silva Janaka (Editor). Online Appendix. Kumar and Clark: Clinical Medicine. 8 th Edition. London: Elsevier. 2012.
  • de Silva Janaka (Editor). Online Appendix. Kumar and Clark: Clinical Medicine. 7 th Edition. London: Elsevier. 2009.
  • de Silva Janaka (Editor). Online Appendix. Kumar and Clark: Clinical Medicine. 6 th Edition. London: Elsevier. 2005. [This appendix provides supplementary information on diseases and problems that are more prevalent in certain parts of the world. The material enlarges on what can be found in the print].
  • Goonaratna C, de Silva HJ (Editors). Gastroenterology Update. Colombo: Gastroenterological and Digestive Endoscopy Society Sri Lanka, 1993. (ISBN 955- 9265-00-8).
  • de Silva HJ, Wijesekera CPB (Editors). Kandy Medical Journal (ISSN1021-2604). 1992 - 1997.
Research Publications :
 Book Chapters and Sections :
  • de Silva Janaka. Poisoning. In: de Silva Janaka (Ed). Online Appendix. Kumar and Clark: Clinical Medicine. 8th Edition. London: Elsevier. 2012.
  • de Silva Janaka. Poisoning. In: de Silva Janaka (Ed). Online Appendix. Kumar and Clark: Clinical Medicine. 7th Edition. London: Elsevier. 2009.
  • Goonaratna CG, de Silva HJ. How to write a paper in the Medical Sciences. In: Deen KI, Kumar RR (Eds). Successful Surgical Research: How to Plan, Perform and Publish. New Delhi: Churchill BI Publications, 2005: 76-85.
  • de Silva Janaka. Poisoning. In: de Silva Janaka (Ed). Online Appendix. Kumar and Clark: Clinical Medicine. 6 th Edition. London: Elsevier. 2005.
  • de Silva HJ. Side effects of gastrointestinal drugs. In: Aronson J (Ed). Side Effects of Drugs. Annual 27. Amsterdam: Elsevier, 2004: 362-372.
  • de Silva HJ. Side effects of gastrointestinal drugs. In: Aronson J (Ed). Side Effects of Drugs. Annual 26. Amsterdam: Elsevier, 2003: 382-392.
  • de Silva HJ. Side effects of gastrointestinal drugs. In: Aronson J (Ed). Side Effects of Drugs. Annual 25. Amsterdam: Elsevier, 2002: 416-430.
  • de Silva HJ, Fonseka MMD. Seroepidemiology of Hepatitis C in SAARC countries. In: Sarin SK, Okuda K (Eds). Hepatitis B and C: from Carrier to Cancer. New Delhi: Harcourt (India) / Elsevier Science, 2002: 187-200.
  • de Silva HJ. Side effects of gastrointestinal drugs. In: Aronson J (Ed). Side Effects of Drugs. Annual 24. Amsterdam: Elsevier, 2001: 401-410.
  • de Silva HJ. Side effects of gastrointestinal drugs. In: Aronson J (Ed). Side Effects of Drugs. Annual 23. Amsterdam: Elsevier, 2000: 380-390.
  • de Silva HJ. Side effects of gastrointestinal drugs. In: Aronson J (Ed). Side Effects of Drugs. Annual 22. Amsterdam: Elsevier, 1999: 389-398.
  • de Silva HJ, Fonseka MMD, de Zoysa NS, Premawardena AP. Seroepidemiology of Hepatitis B and C in Sri Lanka. In: Sarin SK, Hess G (Eds). Transfusion Associated Hepatitis. New Delhi: CBS Publishers, 1998: 116-125.
 Peer Reviewed Publications in Indexed Journals :
Peer Reviewed Publications in Non-Indexed Journals :
  • de Silva HJ , I Abeywickreme. Hepatitis B, C and HIV infection in Sri Lanka. Journal of the Ceylon College of Physicians 2006; 39: 3 - 4.
  • Abeysena C, de Silva HJ . HIV in South Asia. Medicine 2005; 33: 6: 42 - 43.
  • de Silva HJ . Making a physician. Journal of the Ceylo n College of Physicians 2004; 37: 2 - 5.
  • de Silva HJ , de Silva NR. Morbidity due to intestinal geohelminth infections. Gastroenterology Today 2000; 4: 196 - 198.
  • de Silva HJ , de Silva NR. Epidemiolog y and control of intestinal geohelminths. Gastroenterology Today 1999; 3: 16 - 18.
  • Senanayake N, de Silva HJ . Recurrent cerebellar ataxia following falciparum malaria. Neurological Infections and Epidemiology 1996; 1: 47 - 49.
  • de Silva HJ , de Silva NR. Unusual neuromuscular com plications of falciparum malaria. Protozoological Abstracts 1994; 18: 1 - 6.
  • de Silva HJ . Cerebellar involvement in falciparum malaria - investigation of an epidemic. Journal of the Ceylon College of Physicians 1993; 26: 12 - 23.
  • de Silva HJ , de Silva U, Manawasinghe A. Thrombasthenia - a rare cause of upper gastrointestinal haemorrhage. Journal o f the Ceylon College of Physicians 1992; 25: 62 - 64
  • de Silva HJ, de Silva NR, Dunuwille A, Kandanarachchi S, Senanayake N. An epidemiological stu dy of delayed onset cerebellar ataxia complicating falciparum malaria. Journal of Tropical and Geographical Neurology 1992; 2: 181 - 184
  • de Silva HJ, Fernando DPA, Wickremasinghe SYDC, de Silva PT, Dharmadasa K. A study of acute upper gastrointestinal haemorrhage. Journal of the Ceylon College of Physicians 1985; 18: 29 - 42
  • de Silva HJ , de Silva C, Wijesiriwardena B, Chanmugam D, Dharmadasa K. A family with Noonan's syndrome. Journal of the Ceylon College of Physicians 1984; 17: 63 - 67.
Correspondence :
  • de Silva HA, Pathmeswaran A, Lalloo DG, de Silva HJ , Aronson JK. Multiple - dose activated charcoal in yellow oleander poisoning. Lancet 2008; 371: 2171.
  • de Silva HA, Ra nasinha CD, Gunatilake SB, Aronson JK, de Silva HJ . Management of yellow oleander poisoning with multiple - dose activated charcoal: a randomized placebo - controlled trial. Lancet 2003; 362: 581.
  • de Silva HJ. MD or MRCP: A dilemma for the Sri Lankan physician. Ceylon Medical Journal 1994; 39: 190.
  • de Silva HJ. Delayed cerebellar ataxia: a new complication of Falciparum malaria? British Medical Journal 1987; 294: 1612.
Publications Arising from Membership in Working Parties :

Asia – Pacific Working Party on NAFLD :

[ Amarapurkar DN, Chan H L - Y, Chen P - J, Chow W - C, Chitturi S, de Si lva HJ , Fan J - G, Farrell GC, Goh K - L, Hashimoto E, Kim BI, Lau GKK, Lesmana LA, Leung NWY, Sung JJY, Lim S - G, Saibara T, Sollano JD, Chutaputti A, Yeh MM]

  • Farrell GC, Chitturi S, Lau GKK, Sollano JD, for the Asia–Pacific Working Party on NAFLD. Guidelines for the assessment and management of non-alcoholic fatty liver disease in the Asia–Pacific region: Executive summary. Journal of Gastroenterology and Hepaology 2007; 22: 775–777.
  • Chitturi S, Farrell GC, Hashimoto E, Saibara T, Lau GKK, Sollano JD, and the Asia – Pacific Working Party on NAFLD . Non - alcoholic fatty liver disease in the Asia – Pacific region: Definitions and overview of proposed guidelines. Journal of Gastroenterology and Hepaology 2007; 22: 778 – 787
  • Amarapurkar D, Hashimoto E, Lesmana LA, So llano JD, Chen P - J, Goh K - L, for the Asia – Pacific Working Party on NAFLD . How common is non - alcoholic fatty liver disease in the Asia – Pacific region and are there local differences? Journal of Gastroenterology and Hepaology 2007; 22: 788 – 793.
  • Fan J - G, Saibara T, Chitturi S, Kim BI, Sung JJY, Chutaputti A, and the Asia – Pacific Working Party on NAFLD . What are the risk factors and settings for non - alcoholic fatty liver disease in Asia – Pacific? Journal of Gastroenterology and Hepaology 2007; 22: 794 – 800.

APASL Working Party on Portal Hypertension :

[Sarin SK, Kumar A, Angus PW, Baijal SS, Chawla YK, Dhiman RK, de Silva HJ , Hamid S, Hirota S, Hou M - C, Jafri W, Khan M, Lesmana LA, Lui HF, Malhotra V, Maruyama H, Mazumder DG, Omata M, Poddar U, Puri AS, Qur eshi H, Rizvi R, Sahni P, Sakhuja P, Salih M, Santra A, Sharma BC, Shah HA, Shiha G, Sollano J].

  • Sarin SK, Kumar A, Baijal SS, Chawla YK, Dhiman RK, Jafri W, Khan M, Lesmana LA, Mazumder DG, Omata M, Qureshi H, Rizvi R, Sahni P, Sakhuja P, Salih M, Santra A, Sharma BC, Sharma P, Shiha G, Sollano J, members of the APASL Working Party on Portal Hypertension . Non - Cirrhotic Portal Fibrosis (NCPF) / Idiopathic Portal Hypertension (IPH): APASL Recommendations for Diagnosis and Treatment. Hepatology International 2007; 1: 398 - 413
Commissioned Reports and Guidlines :
  • de Silva HJ. Workshop on Clinical Research. Proceedings of the International Medical Congress, University of Peradeniya 1992; 66-68.
  • Kasturiaratchi ND, de Silva HJ, Ellawala NS. A study of suicide in Sri Lanka. Sri Lanka Sumithrayo, Colombo 1996.
  • de Silva HJ. Hepatobiliary disorders in HIV/AIDS. In: Guidelines in HIV/AIDS clinical management. National STD/AIDS Control Programme, Ministry of Health and Indigenous Medicine, Colombo, 1998.
  • Wijesiriwardena B, de Silva HJ. Dyspepsia. Clinical Practice Guidelines. Ceylon College of Physicians, 2001; 21-25.
  • de Silva HJ, Dassanayake A, Nawaratne NMM, de Silva A, Satarasinghe R, Lekamwasam JDVC, Peiris R. Management of ascites due to cirrhosis, spontaneous bacterial peritonitis and hepatic encephalopathy. National Clinical Practice Guidelines, Sri Lanka Health Sector Development Project, IDA/World Bank, 2007.
  • Kasturiratne A, Wickremasinghe AR, de Silva NR, Gunawardena NK, Pathmeswaran A, Premaratna R, Savioloi L, Lalloo DG, de Silva HJ . Estimates of the global burden of snakebite. Geneva, World Health Organzation, 2008.
  • Contributing Author. WHO guidelines for the production, control and regulation of snake anti - venom immunoglobulins. Geneva, WHO, 20 10 .
  • Contributing author. Viral hepatitis in the context of HIV in South - East Asia region. New Delhi, WHO Regional Office for South - East Asia, 2010 .
Articles in Other Local Journals :
  • de Silva HJ . Hepatitis C infection. The Bulletin of the Sri Lanka College of Microbiologists 2006: 4: 40 - 41.
  • de Silva HJ . Should cisapride be withdrawn? The Sri Lanka Prescriber 2002; 9: 1.
  • Seneviratn e SL, de Silva HJ . Management of peptic ulcer. The Sri Lanka Prescriber 1999; 7: 1 - 5.
  • de Silva HJ . Haemorrhage from oesophageal varices : Principles of management for doctors practicing in Sri Lankans hospitals. The Government Medical Officers Association Medical Journal 1998; 2: 47 - 50.
  • Seneviratne SL, de Silva HJ . Management of ulcerative colit is. The Sri Lanka Prescriber 1998; 6: 5 - 7.
  • Seneviratne SL, Gunatilake SB, de Silva HJ. Physical effects of alcohol - part II. Drug Information Bulletin 1997; 1: 1 - 4.
  • Gunatilake SB, Seneviratne SL, de Silva HJ . Atlanto - axial subluxation: the importance of early recognition. Kandy Medical journal 1996; 1: 26 - 27.
  • Seneviratne SL, Gunatilake SB, de Silva HJ. Physical effects of alcohol - part I. Drug Information Bulletin 1996; 4: 1 - 4.
  • de Silva HJ , Samarasekera DN. Irritable Bowel Syndrom e: a short review. The Sri Lanka Prescriber 1996; 4: 5 - 6.
  • de Silva HJ , Sirisena J. Viral hepatitis during pregnancy. Kandy Medical Journal 1995; 1: 4 - 5.
  • de Silva HJ , Ratnatunga N, Wickremasinghe AR, Kularatne WNS. Relationship between biochemical liver function tests and severity of liver damage in alcoholic patients. Kandy Medical Journal 1993; 2: 48 - 50.
  • de Silva HJ, Samarasinghe DS, Ellawala NS. The influence of sociodemo graphic factors on continued abstinence in alcohol dependent persons. Kandy Medical Journal 1992; 1: 11 - 14. (on invitation for first issue of the journal).
General Interest Articles :
  • Fonseka Carlo, de Silva Janaka . Notes towards a history of the Faculty of Medicine, University of Kelaniya. In: Kumarasinghe K (Editor). Fiftieth Anniversary Commemorative Volume. Kel aniya: 2008 .
  • Fonseka Carlo, de Silva HJ . History. In: de Silva HJ, Fonseka Carlo (editor s). Postgraduate Institute of Medicine: 25 th Anniversary Commemorative Volume. Colombo: PGIM, 2005: 2 - 17.
  • de Silva HJ , Fonseka Carlo (Editors). Postgraduate Institute of Medicine: 25 th Anniversary Commemorative Volume. Colombo: PGIM, 2005.
  • Goonaratna C, de Silva HJ . Editorial . Ceylon Medical Journal 2003; 48: 107 - 108.
  • de Silva HJ . The art is long and life is short. In: Goonaratna C (Editor). Colombo Medical School: 125 th Anniversary Commemorative Volume, Colombo, 1995: 106 - 109.
Contributions to Public Health Education :

(a) Illangasekera U, Aponso HA, de Silva HJ . Di abetes.
(b) Illangasekera U, Aponso HA, de Silva HJ . Cirrhosis.
(c) Edirisinghe JS, Aponso HA, de Silva HJ . Amoebia sis.
(d) de Silva HJ , Aponso HA. Herpes Zoster.
(e) Ratnatunga PCA, de Silva HJ . Biliary calculi.
(f) Ratnatunga PCA, de Silva HJ . Peptic ulceration.

  • In: Your Child Your Family. Aponso HA (editor). Peradeniya: CICHS, 1992 (Sinhala). ISBN 955 - 95370 - 1 - 6. (Six sections).
  • Contributing author in: Your Child Your Family. Aponso HA, de Silva DGH, Aloysius DJ (editors). 1999. ISBN 955 - 95370 - 2 - 4.
  • de Silva HJ , Wijeratne S. Dyspepsia. Vidusara scientific magazine 9th Sept. 1992. (Sinhala).
  • de Silva HJ . Upper Gastrointestinal haemorrhage. Vidusara Scientific Magazine 7th Oct. 1992. (Sinhala).
  • de Silva HJ . Nutritional deficiencies. Vidusara Scientific Magazine 4th Nov. 1992. (Sinhala).
  • de Silva HJ . The importance of fibre in the diet. SLMA News March / April 1994.
  • de Silva HJ . Laboratory diagnosis of viral hepatitis. 'Frontiers', Bulletin of the KSM July - September 1995.
  • Thilakarathne S, Samarasekera DN, de Silva HJ. What is Ulceratice Colitis? ISBN 978 - 955 - 1803 - 03 - 2. Colombo, 2007. [also translated to Sih ala ISBN 978 - 955 - 1803 - 00 - 1.].
  • Thilakarathne S, Samarasekera DN, de Silva HJ. What is Crohn’s Disease? ISBN 978 - 955 - 1803 - 02 - 5. Colombo, 2007. [also translated to Sihala ISBN 978 - 955 - 1803 - 01 - 8.].
  • De Silva HJ . Non - alcoholic fatty liver disease. Sri Lanka Me dical Associa tion, Colombo, 2010.
Orations and Invited Lectures :

Orations :

  • Sri Lanka Medical Association Oration. Epidemiology of snakebite: investigating the burden. Sri Lanka Medical Association (126 th anniversary). Colombo, July, 2013.
  • K N Seneviratne Oration. Non - alcoholic fatty liver disease: the challenge before us. South Asian Association of Physiologists and Physiological Society of Sri La nka (Silver Jubilee) . Colombo, November, 2012.
  • Sir Nicholas Attygalle Oration. Inflammatory Bowel Disease: the current statu s in Sri Lanka. Sri Lanka Medical Association (125 th anniversary). Colombo, September, 2012.
  • The Kandy Society of Medicine Prize for Health Research Oration. Evolution of intestinal and liver diseases: the influence of wealth . Kandy Society of Medicine Foundation sessions. Kandy, October, 2007.
  • The Kandy Society of Medicine Oration (Millenium Oration) . Use of antivenom serum in snake bite: towards evidence based practice . Kandy Society of Medicine. Kandy, February, 2000.
  • Sir Marcus Fernando Oration. Suicide in Sri Lanka: Points to ponder. Sri Lanka Medical Association. Colombo, November, 1999.
  • Prof. P.B. Fernando Oration. Cerebellar involvement in falciparum malaria - investigation of an epidemic. Ceylon College of Physicians (Silver Jubilee) . Colombo, September, 1992.
  • Nihal Markus Oration. The treatment of ulcerative colitis - from cure to a new disease. Gastroenterological and Digestive Endoscopy Society Sri Lanka. Colombo, June, 1992.
Invited Lectures at Scientific Meetings and Symposia :

International Meetings :

  • The impact of snake envenoming in resource poor countries. Toxicology and Poisons Network Australasia , Newcastle, Australia, April 2014 .
  • Non - alcoho lic fatty liver disease and Non - alcoholic Steatohepatitis . Commonwealth Association of Paediatric Gastroenterology and Nutrition, Colombo, December 2013 .
  • Challenges to estimating the true burden of snake envenomation. Asia Pacific Association of Medical Toxicology, Dubai, November 2013 .
  • Treatment of acute variceal bleeding. BF Third Liver Summit, Cappadocia, Turkey, August, 2013.
  • Global epidemiology of snakebite. Asia Pacific Association for Medical Toxicology, HaNoi, VietNam, No vember, 2010.
  • NAFLD in Sri Lanka. Asia Pacific Association for the Study of the Liver, Beijing, March, 2010
  • Snakebite in the Central Asia n region with special reference to Sri Lanka. Global Issues in C linical Toxinology, Melbourne, Australia , November, 2008 .
  • Epidemiol ogy of snakebite in Sri Lanka and South Asia . Conference on snakes, venoms and snakebite: national and international perspective. Ko c hi, India, September , 2008 .
  • Exposure to organophosphates: what about chronic exposure? 5 th International Congress of the Asia Pacific Association of Medical Toxicology, Colombo, August 2006.
  • IBD beyond the Western world. University of Oxford (Derek Jewell Valedictorum), Oxford, UK, July, 2006
  • Brain Drain. South Asian Conference on Postgraduate Medical Education, Colombo, August, 2005.
  • Tropical Gastroenterology – case presentations. Postgraduate Gastroenterology Course, University of Oxford, Oxford, September, 2003
  • Hepatitis B, C and HIV infection in Sri Lanka. First National Conference on HIV and Hepatitis co- infection, Mumbai, India, January 20 03.
  • Hepatology issues in Sri Lanka. Asia Pacific Association for the Study of the Liver, Taipei, September 2002.
  • Morbidity due intestinal geohelminth infections – an overview. Indian Society of Gastroenterology and Asia Pacific American Gastroenterological Association, New Delhi, India, Nove mber, 2000.
  • Management of ascites (state of the art lecture). Indian Medical Association: Academia 2000, New Delhi, India, October 2000.
  • Treatment of resistant ascites. Indian Society of Gastroenterology, Calcutta, India, November, 1999.
  • Hepatitis B and C in South Asia. Indian Society of Gastroenterology, Calcutta, India, November, 1999.
  • Epidemiology of Hepatitis C in SAARC countries. In: Hepatitis B and C: carrier to cancer, Asian Perspectives. Indian Association for Study of the Liver, New Delhi, December, 1998
  • Intestinal helminthiasis: epidemiology and control in a developi ng country. Indian Society of Gastroenterology, Pune, India, October, 1998.
  • Epidemiology and control of intestinal helminths. Postgraduate Gastroenterology Course, University of Oxford, Oxford, January, 1995
  • Inflammation in ileal pouches - a model to study ulcerative colitis ? Fifth Specialists Course in gastroenterology, Catholic University of Louvain, Brussels, Belgium, November, 1990.
  • Pouchitis. Postgraduate Gastroenterology Course, University of Oxford, Oxford, January, 1990

National Meetings :

  • Delayed effects of snakebite. Ceylon College of Physicians Annual Academic Sessions jointly with the Royal College of Physicians, London , Colombo, September, 20 13
  • Non - alcoholic fatty liver disease. Sri Lanka College of Paediatricians Annual Academic Sessions, Colombo , August 2012
  • Publishing your research: what editors look for. Sri Lanka Medical Association Annual Academic Sessions, Colombo, June, 2012
  • IBD in Sri Lanka: the current status. Sri Lankan Society of Gastroenterology Academmic Sessions, Colombo, February 2012
  • Cirrhotic ascites and complications: an update . Ceylon College of Physicians Annual Academic Sessions, Colombo, September, 20 11
  • Snakebite: investigating the global burden . Sri Lanka Medical Association Annual Academic Sessions, Colombo, June, 2011
  • Inflammatory bowel disease beyond the West: the hygiene hypothesis. Ceylon College of Physicians Annual Academic Sessions, Colombo, September, 200 9
  • Evaluation of asymptomatic patients with raised transaminases. Annual Academic Sessions of the College of General Practitioners of Sri Lanka, Colombo, Oct ober, 2007
  • Cirrhosis. Sri Lanka College of Radiologists Annual Academic Sessions, Colombo, April, 2007
  • What every military doctor needs to know about snakebite. Military medicine and Disaster Management, 125 th Anniversary conference of the Sri Lanka Army Medical Corps, Colombo, August, 2006
  • Hepatitis C infection. Sri Lanka Medical Association Annual Academic Sessions, Colombo, March, 2006.
  • Management issues in portal hypertension: ascites. Ceylon College of Physicians Annual Academic Sessions, Colombo, September, 2005
  • Hepatit is C. Sri Lanka College of Microbiologists Annual Academic Sessions, Colombo, August, 2005
  • Management of resistant ascites. Sri Lanka Medical Association Annual Academic Sessions, Colombo, March, 2003
  • V iral hepatitis during pregnancy. Sri Lanka College of Obstetricians and Gynaecologists Annual Academic sessions, Colombo, August, 2002
  • Seroepidemiology of Hepaitis B in South Asia. In: HIV and Hepatitis B. Sri Lanka Medical Association Annual Academic Sessions, Colombo, March, 2002
  • Management asymptomatic elevations o f serum transaminases. Ceylon College of Physicians Annual Academic Sessions, Colombo, September, 2001
  • A new look at old diseases. Sri Lanka College of Microbiologists Annual Academic Sessions, Colombo, 2001
  • Management of resistant ascites. Sri Lanka College of General Practitioners, Colombo, October 2000
  • Management of liver failure. Ceylon College of Physicians Annual Academic Sessions, Colombo, Septem ber, 2000
  • Immunity and the gut. Ceylon College of Physicians Annual Academic Sessions, Colombo, September, 1999.
  • Viral liver diseases in Sri Lanka. Ceylon College of Physicians Annual Academic Sessions, Colombo, September, 1997
  • Management of peptic ulcers. Ceylon College of Physicians Annual Academic Sessions, Colombo, September, 1996
  • Management of oesophageal variceal bleeding. Update Lecture, Third Inte rnational Medical Congress, University of Peradeniya, Peradeniya, August, 1996
  • Helicobacter pylori., Update Lecture, Second International Medical Congress, University of Peradeniya, Peradeniya, July, 1994
Scientific Communications with Published Abstracts :

International Meetings :

  • Siew C Ng, Whitney Tang, H Janaka de Silva , Madunil A Niriella, WSAA Yasith Udara, Choon Jin Ooi, Khoon Lin Ling, David Ong , Khean L ee Goh , Ida Hilmi, Ouyang Qin, Wang Yu - Fang, Chen Minhu, Hu Pinjin, Zhu Zhenhua, Zeng Zhirong, Wu Kaichun, Wang Xin, Pisespongsa Pises, Manatsathit Sathaporn, Satimai Aniwan, Simadibrata Marcellus, Abdullah Murdan i, Steve WC Tsang, Tai Chiu Wong, Vincent Leung, Lo Fu Hang, Aric Hui, Chung Mo Chow, Hon Ho Yu, Mo Fong Li, Ka Kei Ng, Jessica Ching, Joseph JY Sung, Francis KL Chan. N atural History of Inflammatory Bowel Disease in Asia: a Follow - up Population - based Coho rt Study. Digestive Diseases Week, American Gastroenterology Association, 201 4; 1012
  • Pathmeswaran A, Kasturirartne A, Gunawardena NK, Wijayawickrama BA, Jayaman ne SF, Isbister G, Dawson A, de Silva HJ . Community incidence of snakebite in Sri Lanka. Asia Pacific Association for Medical Toxicology, Dubai, UAE, November, 2013
  • Ng SC, Tang W, Bell S, Studd C, Kamm M, Wu K, Wang X, Ouyang Q, Wang Y, Goh KL, Hilmi I, Ling KL, Ooi CJ, Ho LK, Ong D, Pisespongsa P, Ng SC, Tang W, Bell S, Studd C, Kamm M, Wu K, Wang X,Ouyang Q, Wang Y, Goh KL, Hilmi I, Ling KL, Ooi CJ, Ho LK, Ong D, Manatsathit S, Aniwan S, Abdullah M, Simadibrata M,Wong TC, Tsang S, Niewiadomsky O, Niriella MA, Yasith Udara WS, de Silva HJ , Sung J, Chan F. Early disease course in inflammatory bowel disease: results from an inception cohort study in Asia - Pacific. United European Gastroenterology Week, Berlin, Germany, October, 2013
  • Ranawaka CK, Miththinda ND, Pathmeswaran A, Dassanayake AS, de Alwis WRS, Mufeena MNF, Senanayake SM, Niriella MA, de Silva AP, de Silva HJ . Development and validation of Sinhala version of the Chronic Liver Disease Questionnaire (CLDQ) for assess ment of quality of life among cirrhotics. United European Gastroenterology Week, Berlin, Germany, October, 2013
  • Kasturiratne A, Akiyama Koichi , Niriella MA, Ta keuchi F, Isono M, Dassanayake AS, De Silva AP, Wickremasinghe AR, Kato N, de Silva HJ . Association of genetic variants with non - alcoholic fatty liver disease in an urban Sri Lankan community. United European Gastroenterology Week, Berlin, Germany, October , 2013
  • Ng SC, Tang W, de Silva HJ , Mettananda KCD, Weerasinghe SK, Ling KL, Ho L, Ong D, Ooi CJ, Hilmi I, Goh KL, Manatsathit S, Aniwan S, Pisespongsa P, Abdullah M, Zeng Z, Zhu Z, Chen M, Ouyang Q, Wang YF, Ng KK, Yu HH, Ching J, Sung J , Chan FK . Quality of life of Inflammatory Bowel Disease at Diagnosis in 8 countries in Asia: The ACCeSS study. 23 rd Asia Pacific Digestive Week, Journal of Gastroenterology and Hepatology 2013; 28 (supplement)
  • Perera KRP, de Silva ST, Niriella MA, Pathmeswaran A, de Silva HJ. Frequency, pattern and short - term outcome of chronic renal dysfunction in patients with cirrhosis. 23 rd Asia Pacific Digestive Week, Journal of Gastroenterology and Hepatology 2013; 28 (supplement)
  • Kasturiratne A, Akiyama Koichi , Niriella MA, Takeuchi F, Isono M, Dassanayake AS , De Silva AP, Wickremasinghe AR, Kato N, de Silva HJ . Association of genetic variants with non - alcoholic fatty liver disease in an urban Sri Lankan community. 23rd Asia Pacific Digestive Week, Journal of Gastroenterology and Hepatology 2013; 28 (supplemen t)
  • Miththinda ND, Ranawaka CK, Pathmeswaran A, Dassanayake AS, de Alwis WRS, Mufeena MNF, Senanayake SM, Niriella MA, de Silva AP, de Silva HJ . Development and validation of Sinhala version of the Chronic Liver Diseas e Questionnaire (CLDQ) for assessment of quality of life among cirrhotics. 23 rd Asia Pacific Digestive Week, Journal of Gastroenterology and Hepatology 2013; 28 (supplement) .
  • Ng SC, Tang W, Ching J, Wong M, Chow CM, Hui AJ, Wong TC, Leung V, Tsang S, Yu HH, Li MF, Ng KK, Kamm MA, Studd C, Bell S, Leong R, Mustaffa N, de Silva HJ , Kasturiratne A, Mufeena MNF, Ling KL, Ooi CJ, Ong D, Goh KL , Hilmi I, Pisespongsa P, Manatsathit S, Rerknimitr R, Aniwan S , Wang YF , Qin O, Zeng Z , Zhenhua Z, Chen MH, Hu PJ, Wu KC , Xin W, Simadibrata M, Abdullah M , Sung JJY, Chan FKL on behalf of the ACCESS study group. Incidence and phenotype at diagnosis of Inflammatory Bowel Disease across 9 countries in Asia - Pacific . Digestive Diseases Week, Amer ican Gastroenterology Association, 2013
  • Ranawaka CK, Kumarasena RS, Niriella MA, Miththinda J KND, Pathmeswaran A, Dassanayake AS, de Silva AP, Premarathna R, de Silva HJ . Predicting acute liver failure in dengue infection. Digestive Diseases Week, American Associa t i on for Study of the Liver, 2013
  • Ng SC, Tang W, Ching J, Wong M, Chow CM, Hui AJ, Wong TC, Leung V, Tsang S, Yu HH, Li MF, Ng KK, Kamm MA, Studd C, Bell S, Leong R, Mustaffa N, de Silva HJ , Kasturiratne A, Mufeena MNF, Ling KL, Ooi CJ, Ong D, Goh KL , Hilmi I, Pisespongsa P, Manatsathit S, Rerknimitr R, Aniwan S , Wang YF , Qin O, Zeng Z , Zhenhua Z, Chen MH, Hu PJ, Wu KC , Xin W, Simadibrata M, Abdullah M , Sung JJY, Chan FKL on behalf of the ACCESS study group. Incidence of inflammatory bowel disease in Asi a - Pacific: First results from the Asia - Pacific epidemiology Crohn‘s and colitis (ACCESS) study . 22 nd Asia Pacific Digestive Week, Journal of Gastroenterology and Hepatology 2012; 27 (supplement 5): A 12 .
  • R anawaka CK, Meththananda KCD, de Alwis R, Miththinda JKND, Wijewantha HS, Niriella MA, Dassanayake AS, de Silva AP, de Silva HJ . Profile of gastric varices among Sri Lankan cirrhotics. 22 nd Asia Pacific Digestive Week, Journal of Gastroenterology and Hepatology 2012; 27 (supplement 5): A408
  • Ranawaka CK, de Silva AP, de Alwis R, Waraketiya PR, Jayathilake TMAH, Niriella MA, Dassanayake AS, Hewavisenthi J de S, de Silva HJ . Prevalence of eosinophilic oesophagitis among adult sri lankan patients with refractory upper gastrointestinal symptoms: a prospective study. 22 nd Asia Pacific Digestive Week, Journal of Gastroenterology and Hepatology 2012; 27 (supplement 5): A315.
  • Ranawaka CK, Kumarasena RS, Niriella MA, Miththinda JKND, Pathmeswaran A, Dassanayake AS, de Silva AP, Premarathna R, de Silva HJ . Predicting acute liver failure in d engue infection. 22 nd Asia Pacific Digestive Week, Journal of Gastroenterology and Hepatology 2012; 27 (supplement 5): A226
  • Ranawaka CK, Pathmeswaran A, Senana yake SM, de Alwis R, Mufeena MNF, Niriella MA, Dassanayake AS, de Silva AP, de Silva HJ . Development and validation of sinhala version of the chronic liver disease questionnaire (CLDQ) for assessment of quality of life among cirrhotics. 22 nd Asia Pacific D igestive Week, Journal of Gastroenterology and Hepatology 2012; 27 (supplement 5): A226
  • Premaratna R, Abeyrathna C, de Alwis K, de Silva HA, de Silva HJ . Effectiveness of a single dose intravenous methyl prednisolone in reversing ongoing vascular leakage in dengue. Singapore International Conference on Dengue and Emerging Infections, November 2012
  • Premaratna R, Perera HKK, Chan KH, Yeung MF, Mettanan da C, Peiris JSM, de Silva HJ. Viral characteristics and genomics of early onset single organ specific presentations in dengue Singapore International Conference on Dengue and Emerging Infections, November 2012
  • Premaratna R, Ragupathy A, Miththinda JKND, de Silva HJ . Systolic blood pressure drop without fluid leakage in dengue: cardiac involvement? Singapore International Conference on Dengue and Emerging Infections, November 2012
  • Amarasiri L, Ranasinha CD, de Silva HJ . The R elationship Between Gastro - Oesophageal Reflux Disease, Upper Gastro - Intestinal Motility and Autonomic Function in a Cohort of Adult Asthmatics. World Allergy Organization International Scientific Conference, Hyderabad, India, 2012
  • Senanayake SM, Fernandopulle ANR, Wijesinghe NT, Ranaweera AGRMA, Kasturiratne A, , Pathmeswarwn A, Nawarathne NMM, de Silva AP, de Silva HJ . Lo ng term outcome of a cohort of Sri Lankan patients with ulcerative colitis: a retrospective study at two national referral centers . United European Gastroenterology Week, Amsterdam, Netherlands, October, 2012
  • Perera KRP, De Silva ST, de Silva HJ . Prospective analysis of renal dy sfunction in cirrhotic patients. United European Gastroenterology Week, Amsterdam, Netherlands, October, 2012
  • Garg H , Kumar A, Sarin SK, Al - Mahtab M, Rehman S, Chawla YK, Hamid S, Tan SS, bt Mohamad R, de Silva HJ, Shiha G, Ning Q, Fan ST. Clinical Profile and Predictors of Mortality of Acute - on - Chronic Liver Failure (ACLF): A Multinational study from Asia Pacific region. European Association for the Study of the Liver, Barcelona, Spain, April, 2012
  • Niriella M, Senanayake SM, Kas turiratne A, de Silva AP, Dassanayake AS, de Silva HJ . Influence of diabetes mellitus on survival of patients with alcoholic cirrhosis and cryptogenic cirrhosis in a setting where liver transplantation is not available. E uropean A ssociation for the S tudy o f the Liver Special Conference on "Liver Transplantation", Lisbon, Portugal, December, 2011
  • Hewawasam SP, de Silva AP, de Silva HJ . Impact of 24 hour endoscopy services for acute upper gastrointestinal bleeding (UGIB) on patient outcome in a tertiary care setting in Sri Lanka. United European Gastroenterology Week, Stockholm, Sweden, October, 2011 .
  • Kasturiratne A , Weerasinghe MGSK , Dassanayake AS, Rajindrajith S , De Silva AP , Kato N , Wickremasinghe AR , de Silva HJ . Influence of non - alcoholic fatty liver disease on the development of diabetes mellitus: results from a prospective, community based, cohort study. United European Gastroenterology Week, Stockho l m, Sweden, October, 2011 .
  • Amarasiri L, Ranasinha C, Pathmeswaran A, de Silva H J . Gastro - oesophageal ref lux disease, upper gastro - intestinal motility and autonomic function in adult asthmatics. European Respiratory Society, Ams terdam, 2011 .
  • Amarasiri WADL, Adhikari MDB, Sanjeewa PAB, ayaratne J, Dassanayake AS, de Silva AP, de Silva HJ . Upper respiratory symptoms are common in a cohort of patients w ith symptomatic gastro - oesophageal reflux disease (GORD) in sri lanka. 21 st Asia Pacific Digestive Week, Journal of Gastroenterology and Hepatology 2011; 26 (supplement 5): 201.
  • Premaratna R, Bandara NKBKRGW, Dasch GA, de Silva HJ . Limits of IFA - IgG based diagnostics in R ickettsial disease s in an end emic setting. International Meeting on Rickettsiae and Rickettsial Diseases, Crete, 2011; 79.
  • Premaratna R, Weerasinghe MGSK, Ranaweera AGRMA , Chandrasena TGAN, Bandara NKBKRGW, Dasch GA, de Silva HJ . Rickettsial disease Diagnostic IgG titres in relation to durat ion of illness in an endemic setting in Sri Lanka. International Meeting on Rickettsiae and Rickettsi al Diseases , Crete, 2011; 35.
  • Wijewantha HS, De Silva AP, Wijesinghe NT, Kumarasena RS, Hewawisenthi J, Dassanayake AS, de Silva HJ . Usefulness of ileoscopy during Colonoscopy. Digestive Diseases Week, American Society for Digestive Endoscopy, 2011.
  • Kumarasena S, De Silva A, Premaratna R, de Silva J . Liver dysfunction and its outcome in patients with Dengue infection. European Congress o f Clinical Microbiology and Infectious Diseases and the 27 th International Congress of Chemotherapy , M ilan, Italy, 2011 .
  • Senanayake SM, Kasturiratne A, De Al wis JPN, Nandasiri ASD, Hewawasam SP, Kumarasena RS, de Silva AP, Dassanayake AS, de Silva HJ . Survival of patients with alcoholic cirrhosis and cryptogenic cirrhosis in a setting where liver transplantation is not available. Asia Pacific Association Assoc iation for the Study of the Liver, Hepatology International, 2011; 5 (Supplement 1). *Distinguished Poster Award.
  • Senanayake SM, Kasturiratne A, De Alwis JPN, Nandasiri ASD, Hewawasam SP, Kumarasena RS, de Silva AP, Dassanayake AS, de Silva HJ . Survival of patients with alcoholic cirrhosis and cryptogenic cirrhosis in a settin g where liver transplantation is not available. European Association for the Study of the Liver Monothematic Conference on Evaluation of Disease Severity and Prognosis in Chronic Liver Disease , Nice, France, 2010; 126 .
  • Amarasiri L, Ranasinha C, Pathmeswaran A, de Silva H . The role of reflux in the genesis of respiratory symptoms in a cohort of adult asthmatics in Sri Lanka. 15th Congress of the Asian Pacific Society of Respirology, Manila 2010, Respirology 2010; 15 (suppl. 2): 26 - 54.
  • Williams SS, Wijesinghe CA, Jayamanne SF, Buckley N, Dawson A, Lalloo DG, de Silva HJ . Delayed psychological morbidity associated with snakebite envenoming. Asia Pacific Association for Medical Toxicology, HaNoi, Vietnam, November, 2010 .
  • De Silva AP, Keragala SP, Hewawasam SP, Senanayake SM, Kumarasena RS, Dassanayake AS, Pathmeswaran A, de Silva HJ . The relationship between appendicectomy, smakong and inflammatory bowel disease (IBD) among Sri Lankan patients. United European Gastro enterology Week, Barcelona, October, 2010 .
  • Premaratna R, de Alwia PN, Nandasiri SD, de Silva HJ. Care given for dengue fever patients at first contact level: are we there? Cold Spring Harbour Asia Conference on Emerging Infectious Diseases, 2010; 19.
  • Premaratna R, Ariyaratna N, Attanayake C, Bandara W, de Silva HJ. The pattern of rickettsioses in Sri Lankan military personnel deployed in northern Sri Lanka. Cold Spring Harbour Asia Conf erence on Emerging Infectious Diseases, 2010; 17.
  • De Silva AP, Kumarasena RS, Suramya, U Kalubowilla U, Niriella M, Dassanayaka AS, Pathmeswaran A, de Silva HJ. The prone 12 o‘clock position reduces ileal intubation time during colonoscopy compared to the left lateral 6 o‘clock (standard) position. Digestive Dise ases Week, American Society for Digestive Endoscopy , 2010; S1401.
  • De Silva AP, Mannamperi A, Hewavisenthi J, Ariyasing he MP, Dassanayake AS, Jewell DP, de Silva HJ . Sub clinical intestinal mucosal inflammation in diarrhea predominant irritable bowel syndrome (IBS) in a tropical setting. Digestive Diseases Week, American Gastroenterology Association, 2010; S1824.
  • Amarasiri L, Pathmeswaran A, Ranasinha C, de Silva AP, Da ssanayake AS, de Silva HJ . Esophageal p eristaltic dysfunction in asthma is secondary to increased gastro - oesophageal reflux . Digestive Diseases Week, American Gastroenterology Association, 2010; S1071.
  • de Silva HJ . NAFLD in Sri Lanka. Asia Pacific Association for the Study of the Liver, Hepatology International, 20 10 ; 4 (Supplement 1): S98 - S99
  • Premaratna R, JayasingheKGNU, Liyanarachch i EW, Weerasinghe OMS, Chandrasena TGAN, Pathmeswaran A, Williams HSA, de Silva YAP, de Silva ST, de Silva AP, de Silva HJ . Outcome of a revised guideline to detect and manage patients who developed severe illness associaited with dengue fever. Emerging In fectious Diseases 2009, Singapore, December, 2009.
  • Premaratna R, Weerasinghe OMS, Dilhani MN, Chandrasena TG AN, Pathmeswaran A, de Silva HJ .Outcome of a clinical method to detect severe illness and to study the evolution of dengue infection I adult patients. Emerging Infectious Diseases 2009, Singapore, December, 2009.
  • Niriella MA, de Silva AP, Dayaratne HGAK, Ariyasinghe M, Nava rathne NMM, Peiris SKR, Samarasekara DN, Satharasinghe RL, Rajindrajith S, Dassanayake AS, Wickramasinghe AR, de Silva HJ . Prevalence of inflammatory bowel disease in the Colombo and Gampaha districts of Sri Lanka. Gastro 2009: Combined meeting of the Unit ed European Gastroenterology Federation, World Gastroenterology Organisation, World Organisation of Digestive Endoscopy and British Society of Gastroenterology, Gut 2009; 58 (supplement II): A309 .
  • Amarasiri DL, Pathmeswaran A, Ranasinha CD, de Silva HJ . The frequency and severity of gastro - oesophageal reflux symptoms in a population of adult asthmatics in Sri Lanka. Gastro 2009: Combined meeting of the United E uropean Gastroenterology Federation, World Gastroenterology Organisation, World Organisation of Digestive Endoscopy, and British Society of Gastroenterology, Gut 2009; 58 (supplement II): A426 .
  • Niriella MA, Dassanayake AS, Kalubowila U, Rajindrajith S, Chakrawarthi S, De Silva AP, Makaya M, Mizoue T , Kato N, Wickremasinghe AR, de Silva HJ . Value of alanine transaminase levels as a screening test for non - alcoholic fatty liver disease in an urban adult Sri Lankan population. Gastro 2009: Combined meeting of the United European Gastroenterology Federation, World Gastroenterology Organisation, World Organisation of Digestive Endoscopy and British Society of Gastroenterology, Gut 2009; 58 (supplement II): A352 .
  • Karunasena S, Niriella MA, Kalubowila U, de Silva AP, Dassanayake AS, de Silva HJ . Bleeding from oesophageal ulceration induced by endoscopic varic eal ligation for primary prophylaxis. Gastro 2009: Combined meeting of the United European Gastroenterology Federation, World Gastroenterology Organisation, World Orga nisation of Digestive Endoscopy and British Society of Gastroenterology, Endoscopy 2009; 41 (supplement I): A364 .
  • Ranasinha CD, Amarasiri L, de Silva HJ . The prevalence of reflux oesophagitis in adult asthmatics. 14 th Congress of the Asian Pacific Society of Respirology, Respirology 2009; 14: A246, PD14 - 18.
  • Premaratna R, Chandrasena TGAN, Bandara NKBKRGW, Rajapakse RPVJ, Ariyaratna N, Eremeewa M, Da sch GA, de Silva HJ . New serological observations on Rickettsi oses in Sri Lanka. 23rd Meeting of American Society of Rickettsiology, South Carolina, USA, August, 2009
  • Premaratna R, Halambarachchige LP, Nanayakkara DM, Nawasiwatte BMTP, Chandrasena TGAN, Rajapakse RPVJ, Bandara NKBKRGW, de Silva HJ . Evidence of Rickettsioses among patie nts with fever and arthritis during the Chikungunya outbreak in Sri Lanka. 23rd Meeting of American Society of Rickettsiology, South Carolina, USA, August, 2009.
  • de Silva HA, Ranasinha CD, Pathmeswaran A, Jayamanne S, Kalupahana R, Ratnatilaka GA, Ariyasena H, Uluwatte W, Lalloo DG, Armitage J, Aronson JK, de Silva HJ . Prevention of acute adverse reactions to snake antivenom after snakebite: multi - centre, randomized, controlled clinical trial. British Society of Clinical Pharmacology Edinburgh, 2009.
  • Niriella MA, Dassanayake AS, Kal obowila KVU, de Silva AP, Wickremasinghe AR, Kato N, Makaya M, de Silva HJ . A lanne transaminase (ALT) levels in normal adult Sri Lankans ? Digestive Diseases Week, American Gastroenterology Association, Gastroenterology 2009; 136 (supplement 1): T1035 .
  • de Silva AP, Niriella MA, Perera NJAHD, Aryasinghe JVS, Kalobowila KVU, Dassanayake AS, Pathmeswaran A, Manchanayake MMJH, Devanarayana NM, de Silva HJ . Is a six hour fast after a rice meal sufficient before upper gastrointestinal endoscopy? Digestive Diseases Week, American Gastroenterology Association, Gastrointestinal Endoscopy 2009; 136 (supplement 1): M1353
  • Niriella M, Kalubowila U, Dassanayake AS, de Silva AP, de Silva HJ. Is Acanthosis Nigricans a useful clinical screening test for non - alcoholic fatty liver disease (NAFLD) in res ource poor settings? European Association for Study of the Liver, Journal of Hepatology 2009; 50 (suppl): S367 .
  • Chandrasena TGAN, Premaratna R, Nawasiwatte BMTP, Ku lasiri K, Rajeev S, Bandara NKB, Rajapakse RPVJ, Kularatne SAM, de Silva HJ . Occurrence of tick bites and serological evidence of exposure to Rickettsioses among Sri Lankan military personnel. International Meeting on E merging Diseases and Surveillance, In ternational Society for Infectious Diseases, Vienna, Austria, February, 2009.
  • de Silva HA, Pathmeswaran A, Jayamanne S, Ariyasena H, Ratnatilaka GA, Kalupahana R, Uluwatte W, Ranasinha CD, Armitage J, Aronson JK, Lalloo DG, de Silva HJ . Prevention of acute adverse reactions to snake antivenom after snakebite: multi - centre, randomized, controlled clinical trial. Global Issues in Clinical Toxinology, Melbourne, Australia, 2008.
  • De Silva AP, Karunayake AL, Dissanayaka TGI, Dassanayake AS, Duminda HKKT, de Silva HJ . Osteoporosis among adult Sri La nkans with Inflammatory Bowel Disease. United European Gastroenterology Week , Gut 2008; 57 (suppl): A129 .
  • Amarasiri L, de Silva J , Ranasinha C. Gastric emptying and antral motility in respon se to a liquid meal in stable - state asthma. European Respiratory Society, European Respiratory Journal 2008; 32 (supplement 52): E3091.
  • Amarasiri L, de Silva J , Ranasinha C. Response of the stomach to a solid - liquid meal in adult asthmatics. European Respiratory Society, European Respiratory Journal 2008; 32 (supplement 52): 959.
  • Premaratna BMR, Nawasiwatt e TP, Amarasekera M, Motha CMB, de Silva HJ . Clinical differentiation of dengue fever from chikungunya in febrile patients with skin erythema. The Second International Conference on Dengue and Dengue Haemorrhagic Fever 2008; 232.
  • Devanarayana N, de Si lva DGH, de Silva HJ . Oro - caecal transit in Sri Lankan children and adolescents with functional recurrent abdominal pain. 18 th Asia Pacific Digestive Week, Journal of Gastroenterology and Hepatology 2008; 23 (supplement): A 157.
  • Dassanayake AS, Rajindrajith S, Kasthurirathne A, Kalubowila U, De Silva AP, Mizoue T, Makaya M, De Silva HJ , for the Ragama Health Study Group. Epidemiology of non - alcoholic fatty liver disease (NAFLD) among adults in an urban Sri Lankan community. Digestive Diseases Week, American Gastroenterology Association, Gastroenterology 2008; M1764 .
  • Amarasiri L, Pathmeswaran A, Ranasinha C, de Silva J . A composite symptom score using frequency and severity correlates better to an objective measure of Gastro - oesophageal Reflux Disease (G ERD) than one scoring frequency of symptoms alone. Digestive Diseases Week, American Gastroenterology Association, Gastroenterology 2008; T2018
  • Premaratna R, Dissanayaka TGI, Chandrasena TGAN, Attanayake N, de Silva HJ . Predicted cost benefits of establishing rickettsial disease diagnostics in Sri Lanka. 5 th International M ee ting on Ri ckettsiae and Rickettsial Diseases, Marseille, France, 2008; 35.
  • Bailey MS, Premaratna R, Rolain JM, Raoult D, Lalloo DG, de Silva HJ . Q fever and rickettsial infections in Western Sri Lanka. 5 th International Meeting on Ricke ttsiae and Rickettsial Diseases, Marseille, France, 2008; 30.
  • de Silva AP, Kasthurirathna A, Liyanage DLMN, Karunanayaka TKMP, Hewavisenthi J, Dassanayaka AS, Farrell GC, de Silva HJ . Is past exposure to hepatitis A protective against progressive fibrosis in non - alcoholic fatty liver disease (NAFLD)? Asia Pacific Association for Study of the Liver, Hepatology International 200 8; 2: A298 - A299 .
  • Premaratna R, Rajapakse RPVJ, Chandrasena TGAN, Dasch GA, Eremeewa M, de Silva HJ . Aetiology of ̳pyrexia of unknown origin‘ in a selected group of patients who ̳responded to doxycycline‘. International Conference on Emerging Infectious Diseases, Atlanta, Georgia, USA , March 2008 .
  • Ferdinandis H, de Silva HJ . Colorectal transit in healthy Sri Lankan males. 17 th Asia Pacific Digestive Week, Journal of Gastroenterology and Hepatology 2007; 22 (supplement 2): A210.
  • Ferdinandis H, de Silva HJ . Diagnosis of achalasia: a Sri Lankan study. 17 th Asia Pacific Digestive Week, Journal of Gast roenterology and Hepatology 2007; 22 (supplement 2): A155.
  • Ranawaka UK, Hemachandra KAK, Rathnayake RMNH, Karunanayake TKMP, Pathmeswaran A, Kulatunga A, Tissera WAJN, Cooray MMS, Wickramasinghe AR, de Silva HJ . Delay s in presentation after stroke: Results from a Sri Lankan Stroke Registry. Indian Academy of Neurology, Mumbai, India , October, 2007.
  • Premaratna R, Bailey MS, Loftis AD, Dasch GA, de Silva HJ. Reasons for delay in the diagnosis of rickettsial infections in Sri Lanka; re sults of a preliminary study. American Society for Rickettsiology, C olorado Springs, USA. , 2007.
  • Premaratna R, Loftis AD, Chandrasena TGAN, Dasch GA, de Silva HJ . Rickettsial Infections and their Clinical Presentations in the We stern Province of Sri Lanka: a Hospital Based Study . American Society for Rickettsiology, C olorado Springs, USA , 2007 .
  • de Silva HA, Ranasinha CD, Pathmeswaran A, Lalloo D, Armitage J, Aronson JK, de Silva HJ . Prevention of acute adverse reactions to antivenom in snakebite: interim report of blinded data from a randomised, controlled trial. Royal Society of Tropical Medicine and Hygiene, centenary meeting, L ondon, UK . , 2007 .
  • Bailey MS, Wijesuriya MTW, Premaratna R, Zochowski WJ, Palmer MF, Johnson AS, Wuthiekanun V, Peacock SJ, Lalloo DG, de Silva HJ . Diagnosis of leptospirosis in febrile patients in the Gampaha district of Sri Lanka. Royal Society o f Tropical Medicine and Hygiene, centenary meeting, London, UK , 2007 .
  • Bailey MS, Wijesuriy a MTW, Premaratna R, de Silva NR, Zochowski WJ, Palmer MF, Johnson AS, Wuthiekanun V, Peacock SJ, Rolain JM, Raoult D, Lalloo DG, de Silva HJ . A fever study in the Gampaha district of Sri Lanka. Royal Society of Tropical Medicine and Hygiene, centenary meeting, London, UK , 2007 .
  • Devanarayana NM, de Silva H, de Silva J . Aetiology of childhood recurrent abdominal pain syndrome: functional or organic? Comparison between Rome II and Rome III criteria. International Pediatric Congress . Athens, Greece , 2007 .
  • Devanarayana NM, de Silva H, de Silva J . Sri Lankan children with recurrent abdominal pain: clinical profile and consultation behariour. International Pediatric Congress . Athens, Greece , 2007 .
  • Rajindrajith S, Dassanayake A, Hewavisenthi J, de Silva J . Advanced hepatic fibrosis and cirrhosis due to non - alcoholic fatty liver disease in Sri Lankan children: a prelimin ary report. International Pediatric Congress . Athens, Greece , 2007 .
  • de Silva AP, Dassanayake AS, Liyanage M, Karunanayake M, Hewavisenthi J, de Silva HJ . Microscopic colitis not otherwise specified (NOS) in patients with diarrhoea predominant IBS in a tropical setting. Digestive Diseases Week, America n Gastroenterology Association, Gastroenterology 2007; 132 (supplement 2: A193).
  • Manamperi A, Gunawardena N, Nugawela P, Bandara A, Wellawatte C, Bindusara RM, de Silva HJ , Abeyewickreme W. Screening of Hepatitis C (HCV) antibody re active donors by RT - PCR in a sample population of blood donors in Sri Lanka. 43rd Malaysian Society of Parasitology Annual Scientific Seminar and Tropical Medicine & Centenary Celebration of the Royal Society of Tropical Medicine and Hygiene, Kuala Lumpur, Malaysia, 2007; 34.
  • Devanarayana NM, de Silva DGH, de Silva HJ . Gastric myoelctrical and motor abnormalities in children and adolescents with functional recurrent abdominal pain. Royal College of Paediatrics and Child Health, Archives of Diseases in Childhood 2007; 92 (supplement 1) A29
  • Dassanayake AS, Mendis H, De Silva AP, de Silva HJ . Gastric antral vascular ectasia (GAVE) in patients with cirrhosis. 17 th Asia Pacific Association for Study of the Liver, Hepatology International 2007; 1: 237
  • Devanarayana NM, de Silva DGH, de Silva HJ . Association between recurrent abdominal pain in Sri Lankan sc hool children and exposure to stressful life events. 12 th Asia Pacific Congress of Paediatrics, Colombo, Sri Lanka, 2007; 47. (A13).
  • Devanarayana NM, de Silva DGH, de Silva HJ . Causes for recurrent abdominal pain in childre n and adolescents: a classification according to Rome II criteria. 12 th Asia Pacific Congress of Paediatrics, Colombo, Sri Lanka, 2007; 46 - 47. (A12).
  • Amarasiri WADL, Ranasinghe C, Pathmeswaran A, de Silva HJ . Validation of a gatro - oesophageal reflux disease (GERD) sp ecific screening instrument for epidemiological purposes. 16 th Asia Pacific Digestive Week, Journal of Gastroenterology and Hepatology 2006; 21 (supplement): A 381.
  • Samarawickrema N, Peiris - John R, Karunaratna M, Pathmeswaran A, Wickremesinghe AR, de Silva HJ . Environmental exposure o f the foetus to organophosphorus compounds. 5 th Congress of the Asia Pacific Association of Medical Toxicology, Colombo, August, 2006; 4.
  • Premaratne R, Pathmeswaran A, Amarasekera M, Motha C, Perera H, de Silva HJ . A clinical guide for Dengue detection, appropriate timing of investigations and hospital ad missions. International Society for Infectious Diseases, International Journal of Infectious Diseases 2006; 10 (supplement): S200 - 201.
  • Premaratne R, Loftis AD, Chandrasena TGAN, Dasch GA, de Silva HJ . Rickettsial species and their clinical presentations in Western Province of Sri Lanka: a hospital based study. International Society for Infectio us Diseases, International Journal of Infectious Diseases 2006; 10 (supplement): S195.
  • de Silva AP, Amarasiri WADL, Kottahachchi DC, Dassanayake A, de Silva HJ. One hour fast for liquids prior to endoscopy is safe effective and results in minimum patient discomfort. Digestive Diseases Week, American Gastroenterology Association, Gastrointestinal Endoscopy 2006; 63: AB194.
  • Ferdinandis H, de Silva HJ . 24 hour ambulatory pHmetry – how is it being used as a diagnostic tool in Sri Lanka? 10th World Congress of the International Society for Diseases of the Oesophagus, Adelaide, 2006; 106.
  • Devanarayana NM, de Silva DGH, de Silva HJ . Helicobacter pylori infection in recurrent abdominal pain: a Sri Lankan experience. 8th Commonwealth Congress on Diarrhoea and Malnutrition, Dhaka, Bangladesh, 2006; 32. (A23).
  • de Silva HJ , Dassanayake AS. Adefovir Dipivoxil In The Treatment Of Lamivudine - Resistant Hepatitis B Infection In Post - Renal Transplant Patients: Preliminary Results. 16 th Asia Pacific Association for S tudy of the Liver, Journal of Gastroenterology and Hepatology 2006; 21 (Supplement) .
  • Dassanayake AS, de Silva AP, de Silva HJ . Aetiology of cirrhosis in a tertiary refrerral centre in Sri Lanka. 15 th Asia Pacific Association f or Study of the Liver, Liver International 2005; 37 .
  • Ferdinandis H, Deen KI, de Silva HJ . Use of esophageal manometry as a diagnostic tool in Sri Lanka. British Society of Gastroenterology, Gut 2005; 54 (Supplement): A77
  • Hewavisenthi SjdeS, Pathmeswaran A, de Silva HJ . The value of Brunt scori ng in predicting the short term outcome of non - alcoholic steatohepatitis. 14 th Asia Pacific Association for Study of the Liver, Journal of Gastroenterology and Hepatology 2004; 19 (Supplement): A762 .
  • de Silva HJ , Herath CA, Sheriff MHR. Lamivudine for Hepatitis B infection in post - renal transplant patients: 36 month follow - up. 14 th Asia Pacific Association for Study of the Liver, Journal of Gastroenterology and Hepatology 2004; 19 (Supplement): A741.
  • de Silva HA, Hewavisenthi J, Pathmeswaran A, Dassanayake AS, Navaratne NMM, Peiris R, de Silva HJ . Comparison of one week and two weeks of triple therapy for the eradication of Heli cobacter pylori in a Sri Lankan population: a randomized, controlled study. 14 th Asia Pacific Digestive Week, Journal of Gastroenterology and Hepatology 2004; 19 (Suppl.): A340 - 341.
  • Premaratne R, Weerasinghe M, Vipulanayake T, Perera C, Balasooriya H, de Silva HJ . Consumer knowledge and demand for antibiotics: a Sri Lank an experience. World Conference on Dosing of Anti - infectives 2004; A109.
  • Sunil - Chandra NP, Premaratne R, Somasiri DADH, de Silva HJ . Evidence of leptospira and hantavirus co - infections amongst patients hospitalized for leptosp irosis - like illness. VIth Asia Pacific Congress in Medical Virology, Journal of Clinical Virology 2003; 28: S71.
  • de Silva HA, Fonseka MMD, Pathmeswaran A, AlahakoneDGS, Ratnatilake GA, Gunatilake SB, Ranasinha CD, Lalloo DG, Aronson JK, de Silva H J . Management of yellow oleander poisoning with multiple - dose activated charcoal: a randomized placebo - controlle d trial. British Pharmacological Society, British Journal of Clinical Pharmacology 2003; 55: 422 - 423.
  • de Silva HJ . Hepatology issues in Sri Lanka. Asia Pacific Association for the Study of the Liver, Journal of Gastroenterology and Hepatology 2002; 17 (Suppl.) : A8.
  • de Silva HJ , Herath CA, Sheriff MHR. Lamivudine therapy for Hepatitis B (HBV) infection in post transplant patients: results after 12 months follow up. Asia Pacific Associatio n for the Study of the Liver, Journal of Gastroenterology and Hepatology 2002; 17 (Suppl.): A48.
  • Gunasekera HAKM, Sunil - Chandra NP, de Silva HJ. Hepatitis C seroprevalence: a community survey from the Gampaha district. Asia Pacific Association for the Study o f the Liver, Journal of Gastroenterology and Hepatology 2002; 17 (Suppl.): A53.
  • de Silva HA, Thabrew MI, Saparamadu PAM, Pathmeswaran A, Fonseka MMD, de Silva HJ. Efficacy of Liv 52 in alcoholic liver d isease. British Pharmacological Society, British Journal of Clinical Pharmacology 2001; C84.
  • Seneviratne SL, de Silva CE, Fonseka MMD, Gunatilake SB, de Silva HJ . Outcome of management of yellow oleander poisoning in a Base Hospital setting. British Pharmacological Society, British Journal of Clinical Pharmacology 2001; C82.
  • Premaratne R, Chandrasena TGAN, Abeywickrema W, de Silva NR, Chandrasena LG, de Silva HJ. Red blood cell antioxidant levels after treatment with diethyl carbamazine citrate in persons with asympto matic microfilaraemia. X!th European Congress of Clinical Microbiology and Infectious Diseases, Clinical Microbiology and Infection 2001; 7 (suppl): 349
  • Premaratne R, Chandrasena TGAN, Abeywickrema W, de Silva NR, Chandrasena LG, de Silva HJ. Clearance of microfilaraemia and red blood cell glutathi one peroxidase levels in asymptomatic microfilaraemics after single dose and fourteen days treatment with diethyl carbamazine citrate in persons with asymptomatic microfilaraemia. X!th European Congress of Clinical Microbiology and Infectious Diseases. Cli nical Microbiology and Infection 2001; 7 (suppl): 348 - 34 9.
  • Premaratne R, Chandrasena TGAN, Senarath S, Chandrasena LG, de Silva NR, de Silva HJ. Role of antiox idants in filarial infection. Oxford 2000 – New Challenges in Tropical Medicine and Parasitology. 2000; 99.
  • de Silva HJ . Use of antivenom serum in snake bite: the situation in Sri Lanka. First Asia Pacific Regional Conference on Antidote Use and Administration. 2000; 47.
  • Ferdinandis H, Dissanayake AS, de Silva HJ . Circadian oesophageal motor activity in chronic alcoholics. British Society of Gastroenterology, Gut 2000; A98
  • Premaratne R, Sathischandra H, Thilakaratne Y, Shantharaj W, de Silva HJ . Effect of propranolol and nitrates on cardio - respira tory function in cirrhotic patients. British Society of Gastroenterology, Gut 2000; A61.
  • de Silva HJ , Gunatilake SB, Fonseka MMD, Seneviratne SL. Current practices in the management of snake b ite in four hospitals in western Sri Lanka. Fifth Asia Pacific Congress on Animal, Plant and Microbial Toxins, Toxicon 1999; 38.
  • de Silva NR, Sirisena JLGJ, Guna sekera DPS, Ismail MM, de Silva HJ . Effect of mebendazole therapy in pregnancy on birth outcome. IInd European Congress on Tropical Medicine, 1998; 86.
  • Deen KI, de Silva AP, Jayakody M, de Silva HJ . Saphenous vein - peritoneal shunts in the treatment of resistant ascites. XIth World Congress of Gastroenterology, Digestion 1998; 59 (suppl 3): 342 - 34 3.
  • de Silva NR, Sirisena J, Gunasekera DP, de Silva HJ . Effect of mebendazole therapy on birth outcome. XIth World Congress of Gastroenterology, Digestion 1998; 59 (suppl 3): 20.
  • Ferdinandis TGHC, Dissanayake AS, de Silva HJ . Effect of meal consistency on gastric myoelectrical activity. British Society of Gastroenterology, Gut 1998; A71.
  • Deen K, Premaratne R, MMD Fonseka, de Silva HJ . The recto - anal inhibitory reflex (RAIR): abnormal response in diabetics suggests an intrinsic neuro - enteropathy. British Society of Gastroenterology, Gut 1997; A52.
  • Premawardena AP, Gunatilake SB, de Silva HJ . Haemostatic dysfunction following Hypnale hypnale bites. XIV International Congress for Tropical Medicine and Malaria 1996; 283.
  • Premawardena AP, Premaratne R, Jayaweera G, Costa S, Chandrasena LG, de Silva HJ . Hepatitis B and C virus markers among new entrant medical students. XIV Internat ional Congress for Tropical Medicine and Malaria 1996; 120.
  • Gunatilake SB, Seneviratne SL, Adhikari AADNW, de Silva HJ . Dr iving and epilepsy. Inaugural Congress of Asian and Oceanian Epilepsy Organization 1996; 49.
  • Premawardena AP, Gunatilake SB, de Silva HJ . Haemostatic dysfunction following Hypna lehypnale bites. Third International Medical Congress, University of Peradeniya: Prof. PCC Garnham Commemoration Joint Meeting with the Royal Society of Tropical medicine & Hygiene 1996; 43.
  • Ranasinghe G, Gunatilake SB, de Silva HJ . Alcoholism among women: a hospital based study from Sri Lanka. 10th International Conference on Alcohol 1996; 34 - 35.
  • Suraweera PHR, Walpola SH, Abeysinghe LC, Mabulage S, de Silva HJ. Role of alcohol abuse in cases of physical assault. 10th International Conference on Alcohol 1996; 17.
  • Seneviratne SL, Epa Liyanage P, Sirisena D, de Silva HJ . Notification of gast rointestinal infections. Asia Pacific Association for Gastroenterlogy, Mini Congress 1996; 39.
  • Seneviratne SL, Epa Liyanage P, Sirisena D, de Silva HJ . Notification of gastrointestinal infections. Second International Conference on Tropical Gastroenterology and Hepatology 1996; G19.
  • de Silva NR, Kodituwakku A, Edirisinghe S, de Silva HJ . Use of anthelmintics during pregnancy. Second International Conference on Tropical Gastroenterology and Hepatology 1996; G7.
  • Fonseka C, de Silva NR, Sirisena J, de Silva HJ . Strategies for increasing Sri Lanka's output of doctors given limited resources. Southeast Asian Regional Conference on Medical Education 1996; 246.
  • de Silva HJ , de Silva NR. Epidem iology and control of intestinal helminths. Postgraduate Course in Gastroenterology, University of Oxford 1995; 29 - 30
  • de Silva HJ , Senanayake N. Delayed cerebellar ataxia complicating falciparum malaria. Neurology Update: First international conference on organization and delivery of neurological services 1994; 41.
  • de Silva HJ , Kularatne WNS, Ratnatunga N, Withane N, Breschkin A, Vitarana T. Low frequency of Hepatitis C markers in Sri Lankan alcoholic cirrhotics. IX Asia - Pacific Congress of Gastroenterology 1992; 59.
  • de Silva HJ , Pethiyagoda AU, Pethiyagoda CJB, Jayawardena J. Viral hepatitis complicating pregnancy - a five year hospit al based study. IX Asia - Pacific Congress of Gastroenterology 1992; 282.
  • de Silva HJ , de Silva NR, Dunuwille A, Kandanarachchi S, Senanayake N. Delayed cerebellar ataxia (DCA) co mplicating falciparum malaria: is a new strain responsible? XIII International Congress for Tropical Medicine and Malaria 1992; 2: 70.
  • Merrett MN, de Silva HJ , Rhodes JM, Milton JD, Campbell A, Prince C, Jewell DP. Colonic type mucin occurs in the ileal pouch and small intestinal Crohn's strictures, but not in coeliac disease. British Society of Gastroenterology, Gut 1991; 32: A 1254 - 5
  • Dalton H, Hoang P, de Silva HJ, Jewell DP. Cytokine productio n by human colonic intraepithelial lymphocytes in controls and inflammatory bowel disease. British Society of Gastroenterology, Gut 1991; 32: A 1209
  • de Silva HJ, Davies AH, de Angelis CP, Kettlewell M, Jewell DP, Mortensen NJ. Does pouchitis have an immunological basis? Surgical Research Society, British Journal of Surgery 1991; 78: 740.
  • de Silva HJ, Davies AH, de Angelis CP, Jewell DP, Kettlewell M, Mortensen NJ. Functional results and surgical complications in 3 pouch types. Surgical Research Society, British Journal of Surgery 1991; 78: 740 .
  • Davies A, de Silva HJ, Dehn TCB, Kettlewell M, Mortensen N. Reoperation rates after restorative proctocolectomy. British Socie ty of Gastroenterology, Gut 1990; 31: A1188.
  • de Silva HJ, Millard P, Prince C, Kettlewell M, Mortensen N, Jewel l DP. Serial observations of the mucosal changes in ileo - anal pouches. British Society of Gastroenterology, Gut 1990; 31: A1168.
  • de Silva HJ, Jones M, K ettlewell M, Mortensen N, Jewell DP. Subsets of T - lymphocytes and macrophages in the mucosa of ileoanal pouches. American Gastroenterology Association, Gastroenterology 1990; 98 (2): A445.
  • de Silva HJ, Soper N, Kettlewell M, Mortensen N, Jewell DP. Emptying characteristics of ileoanal pouches. British Society of Gastroenterology, Gut 1990; 31: A618.
  • de Silva HJ, Gatter K, Millard PR, Kettlewell M, Mortensen N, Jewell DP. Crypt cell proliferation (CCP), HLA - DR expression and intraepithelial lymphocytes (IEL) in pelvic ileal pouch es. Medical Research Society, Clinical Science 1990; 78 (Supp): 37.
  • Snook JA, de Silva HJ, Jewell DP. Autoimmune disorders associated with inflammatory bowel disease. Association of Pysicians of Gre at Britain and Ireland, Quarterly Journal of Medicine 1989; 73: 965 - 966.
  • de Silva HJ, Gatter K, Millard P, Prince C, Das K, Kettlewell M, Mortensen N, Jewell DP. Colonic and small intes tinal epithelial markers in pelvic ileal pouches. International Symposium on New Trends in Pelvic Pouch Procedures 1989; 3.
  • de Silva PT, Pothupitiya G, de Silva HJ . Role of Metformin in the control of Diabetes. Singapore - Malaysia Congress of Medicine 1984; 76.

National Meetings :

  • Miththinda JKND, Ranawaka CK, Pathmeswaran A, Dassanaya ke AS, de Alwis WRS, Mufeena MNF, Senanayake, SM, Niriella MA, de Silva AP, de Silva HJ . Validation of Sinhala version of the Chronic Liver Disease Questionnaire (CLDQ) and evaluation of health related quality of life among patients with cirrhosis in Sri Lanka. Ceylon Medical Journal 2013; 58 (suppl): 72.
  • De Silva ST, Perera KRP, Niriella MA, Pathmeswaran A, de Silva HJ . Frequency, pattern and outcome of renal dysfunction in patients with cirrhosis: a prospective study using the proposed ADQI - IAC criteria. Ceylon Medical Journal 2013; 58 (suppl): 55.
  • Premaratne R, Karunasekera KAW, Fernando MAM, de Silva L, Chandrasena TGN, de Silva HJ . Clinical characteristics of paediatric rickettsioses. Ceylon Medical Journal 2013; 58 (suppl):47
  • Premaratna R, Karunasek ara KAW, Fernando MAM, de Silva L, Chandrasena TGAN, de Silva HJ , Miththinda JKND, Mufeena MNF, Madeena KSK, Bandara NKBKRGW. Comparison of clinical and laboratory parameters between Rickettsiosis positive and negative children. Ceylon Medical Journal 2013 ; 58 (suppl): 46.
  • Premaratna R, Perera HKK, Chan KH, Yeung MF, Meththananda C, Peiris JSM, de Silva HJ . Viral characteristics and genomics of early onset, single organ specific presentations in dengue. Ceylon Medical Journal 2013; 58 (suppl): 46.
  • Siriwardana RC, Liyanage CAHL, Jayatunge DSP, Dassanayaka A, Gunetileke MG, Niriella MA, Sirigampola C, Upasena A, de Silva HJ . Hepatocellular carcinoma in Sri Lanka: Where do we stand? Ceylon Medical Journal 2013; 58 (suppl): 29.
  • Niriella MA, Kasturiratne MA, Takeuchi F, Akiyama K , Dassanayake AS, De Silva AP, Wickremasinghe AR, Kato N, de Silva HJ . Association of genetic variants with non - alcoholic fatty liver disease in an urban Sri Lankan community. Ceylon Medical Journal 2013; 58 (suppl): 28
  • Kasturiratne A, Gunawardena NK, Wijayawickrama BA, Jayamanne SF, Pathmeswaran A, Isbister G, Dawson A, de Silva HJ . Community incidence of snakebite in the Anuradhapura district. Ceylon Medical Journal 2013; 58 (suppl ): 24.
  • Miththinda JKND, Premaratna R, Ragupathy R, de Silva HJ . Blood pressure drop in dengue without fluid leakage. Ceylon Medical Journal 2013; 58 (suppl ): 9.
  • Premaratna R, Abeyrathna C, de Alwis K, de Silva HA, de Silva HJ . Effectiveness o f single dose intravenous methyl prednisolone in reversing ongoing vascular leakage in dengue Ceylon Medical Journal 2013; 58 (suppl ): 8.
  • Jayasinghe YC, Kasturiratne A, Samaraweera S ASG, de Silva HJ . Snakebites in children - a five year retrospective review of victims admitted to two hospitals in Sri Lanka. Ceylon Medical Journal 2012; 57 (Suppl ): 153.
  • Waraketiya PR, de Silva AP, Wijesinghe NT, Wijewantha HS, Chandrasena LG, Pathmeswaran A, de Silva HJ . Clostridium difficile infection in inflammatory bowel disease patients in Sri Lanka. Ceylon Medical Journal 2012; 57 (Suppl ): 150.
  • Eugene EJ, Wickramasinghe SA, Kalugalage TL, Rod rigo C, Wickremasinghe H, Dikmadugoda N, Somaratna P, de Silva HJ , Rajapakse S, Hadunnetti SM. A pilot study on comparison of rapid immunodiagnostics for confirmation of leptospirosis. Ceylon Medical Journal 2012; 57 (Suppl ): 149
  • Premaratna R , Ragupathy A, Miththinda JKND, de Silva HJ . A study to determine quantitative predicators for development of third space fluid accumulation in adult patients with dengue. Ceylon Medical Journal 2012; 57 (Suppl ): 108.
  • Wijewan tha HS, Premaratna R, Nishad AAN, Mabharana IDM, de Silva AP, Waraketiya PR, Niriella MA, de Silva HJ . Developing a severity index on day 4 to predict severe dengue infection in adults. Ceylon Medical Journal 2012; 57 (Suppl ): 107
  • Premarathna R , Rodrigo KMD, Anuratha A, de Alwis VKD, Perera UDCA, de Silva HJ . Repeated dengue shock syndrome and ―Dengue myocarditis‖ responding dramatically to a single dose methyl prednisolone. Ceylon Medical Journal 2012; 57 (Suppl ): 106.
  • Premaratna R , Ragupathy A, Miththinda JKND, de Silva HJ . Predicators of duration and degree of third space fluid accumulation in adult patients with dengue. Ceylon Medical Journal 2012; 57 (Suppl ): 10 6.
  • Ranawaka CK, Mettananda KCD, de Alwis WRS, Miththinda JKND, Niriella MA, de Silva AP, de Silva HJ. Profile of gastric varices among Sri Lankan cirrhot ics. Ceylon Medical Journal 2012; 57 (Supplement): 78.
  • Ranawaka CK, Pathmeswaran A, de Alwis WRS, Mufeena MNF, Wijewantha HS, Senanayake SM, Niriella MA, Dassanayake AS, de Silva AP, de Silva HJ . Development and validation of Sinhala version of the Chronic Liver Disease Questionnaire (CLDQ) for assessment of quality of life among cirrhotics. Ceylon Medical Journal 2012; 57 (Suppl ): 75.
  • Premaratne R , Ragupathy A, Miththinda JKND, de Silva HJ. To identify the role of haemoglobin, pack cell volume and pulse pressure in predicting fluid leakage in patients with dengue who consume adequate amounts of fluids. Ceylon Medical Journal 2012; 57 (Suppl ): 34
  • Ranawaka CK, Kumarasena RS, Niriella MA, Miththinda JKND, Pathmeswaran A, Dassanayake AS, de Silva AP, de Silva HJ . Predicting acute liver failure in dengue infection. Ceylon Medical Journal 2012; 57 (Suppl ): 33.
  • Ranawak a CK, de Silva AP, Hewavisenthi SJ, Jayathilake TMAH, de Alwis WRS, Waraketiya PR, Niriella MA, de Silva HJ . Prevalence of eosinophilic oesophagitis among adult Sri Lankan patients with refractory upper gastrointestinal symptoms – a prospective study. Ceylon Medical Journal 2012; 57 (Suppl ): 29.
  • Perera KRP, de Silva ST, de Silva HJ. Renal dysfunction in patients with cirrhosis – a prospective analysis. Ceylon Medical Journal 2012; 57 (Supplement): 15.
  • Bogamuwa MMMP, Siriwardana RC, Niriella MA, Dassanayake AS, Wijesuriya SRE, Liyanage CAH, Gunetilleke MB, de Silva HJ . Liver transplantation – initial experience at Colombo N orth Liver Transplantation Service. Ceylon Medical Journal 2012; 57 (Suppl ): 13
  • Hewawasam SP, de Silva AP, de Silva HJ . Impact of 24 hour endoscopy services for acute upper gastrointestinal bleeding (UGIB) on patient outcome in a tertiary care setting in Sri Lanka. Ceylon College of Physicians Annual Academic Sessions, Colombo, September 2011
  • A Kasturiratne, Pinidiyapathirage MJ, Pathmeswaran A, N Kato, AR Wickremasinghe, HJ de Silva . Epidemiology of hypertension in an urban population in Sri Lanka. Sri Lanka Medical Association, Ceylon Medical Journal 2011; 55 (suppl 1): 60
  • Senanayake SM, Fernandopulle ANR, Wijesinghe NT, Ranaweera AGRMA, Kasturiratne A, , Pathmeswarwn A, Nawarathne NMM , de Silva AP, de Silva HJ . The long term outcome of a cohort of Sri Lankan patients with ulcerative colitis at two tertiary care hospitals: preliminary results . Sri Lanka Medical Association, Ceylon Medical Journal 201 1 ; 55 (suppl 1): 31 .
  • Wijewantha HS, De Silva AP, Wijesinghe NT, Kumarasena RS, Hewawisenthi J, Dassanayake AS, de Silva HJ . Usefulness of ileoscopy during Colonoscopy. Sri Lanka Medical Association, Ceylon Medical Journal 2011; 56 (suppl 1): 31 .
  • de Silva HA, Pathmeswaran A, Ranasinha CD, Jayamanne S, Samarakone SB, Hittharage A, Kalupahana R, Ratnatilaka GA, Uluwattege W, Aronson JK, Armitage J, Lalloo DG, de Silva HJ . Low dose adrenal ine, promathazine and hydrocortisone (alone and in combination) in the prevention of acute adverse reactions to antivenom follwing snakebite: a randomized, double blind, placebo controlled trial. Sri Lanka Medical Association, Ceylon Medical Journal 2011; 56 (suppl 1): 29 .
  • A Kasturiratne, MGSK Weera singhe, AS Dassanayake, S Rajindrajith, AP De Silva, N Kato, AR Wickremasinghe, HJ de Silva . Influence of non - alcoholic fatty liver disease on the development of diabetes mellitus: results from a prospective, community based, cohort study. Sri Lanka Medical Association, Ceylon Medical Journal 2011; 55 (suppl 1): 16
  • Premaratna R, Jayasinghe KGNU, Liyanaarachchi EW, Weerasinghe OMS, Pathmesw aran A, Williams HAS, de Silva ST, de Silva AP, de Silva HJ . Effect of single dose methyl prednisolone in severe illness associated with dengue fever. Sri Lanka Medical Association, Ceylon Medical Journal 2010; 55 (suppl 1): 58 .
  • De Silva AP, Kumarasena RS, Keragala BSDP, Kalubowila KVU, Niriella MA, Dassanayake AS, Pathmeswaran A, de Silva HJ . The prone 12 o‘clock position reduces ileal intubation time during colonoscopy compared to the left lateral 6 o‘clock (standard) position. Sri Lanka Medical Association, Ceylon Medical Journal 2010; 55 (suppl 1): 41.
  • Kumarasena RS, Senanayake SM, De Silva AP, Biyanwila C, Dassanayake AS, Premaratna R, Wijesiriwardena B, de Silva HJ . Intravenous N - acetylcysteine in acute liver failure associated with dengue infection . Sri Lanka Medical Association, Ceylon Medical Journal 2010; 55 (suppl 1): 34 .
  • Kumarasena RS, De Silva AP, Keragala BSDP, Premaratna BAHR, Thilakaratne PMYI, Premawardhena AP, de Silva ST, Jayamanne SF, de Silva HJ . Liver dysfunction and its outcome in patients with dengue infection. Sri Lanka Medical Association, Ceylon Medical Journal 2010; 55 (suppl 1): 33.
  • De Silva AP, Keragala BSDP, Kasturiratne A, Kumarasena RS, Dassanayake AS, Premaratna R, Dassanayake KMNP, de Silva HJ . The utility of AST:ALT ratio as a screening test for dengue fever. Sri Lanka Medical Association, Ceylon Medical Journal 2010; 55 (suppl 1): 33.
  • De Silva AP, Mannamperi A, Ariyasinghe MP, Nandasiri ASD, Hewavisenthi J, Dassanayake AS, Jewell DP, de Silva HJ . Sub clinical intestinal mucosal inflammation in diarrhea predominant irritable bowel syndrome (IBS) in a tropical setting. Sri Lanka Medical Association, Ceylon Medical Journal 2010; 55 (suppl 1): 28.
  • Will iams SS, Wijesinghe CA, Jayamanne SF, Buckley N, Dawson A, Lalloo DG, de Silva HJ . Delayed psychological morbidity associated with snakebite envenoming. Sri Lanka Medical Association, Ceylon Medical Journal 2010; 55 (suppl 1): 27 .
  • Amarsiri WADL, Pathmeswaran A, Ranasinha CD, de Silva HJ . Oesophageal dysfunction in asthmatics. Sri Lanka Medical Association, Ceylon Medical Journal 2010; 55 (suppl 1): 19.
  • Senanayake SM, Hewawasam SP, Kumarasena RS, De Alwis JPN, Nandasiri ASD, Dassanayake AS, de Silva AP, de Silva HJ . Comparison of outcomes of patients with alcoholic cirrhosis and non - alcoholic steatohepatitis (NASH) related cirrhosis. Sri Lanka Medical Association, Ceylon Medical Journal 2010; 55 (suppl 1): 18
  • Premaratna R, Chandrasena TGAN, Bandara NKBKRGW, Rajapakse RPVJ, Nawasiwatte BMTP, Rajeev S, Kulasiri KIR, Liyanage NSH, Kularatna SAM, de Silva HJ . Progress report on Rickettsial disease diagnostic and research laboratory (RDDRL), Faculty of Medicine, University of Kelaniya. Sri Lanka Medical Association, Ceylon Medical Journal 2009; 5 4 (suppl 1): 50
  • Niriella MA, Dassanayake AS, Kalobowila KVU, Rajindrajith S, de Silva AP, Wickremasinghe AR, Kato N, Makaya M, de Silva HJ . Are alanne transaminase (ALT) levels useful to screen for non - alcoholic fatty liver disease (NAFLD) in the community? Sri Lanka Medical Association, Ceylon Medical Journal 2009; 54 (suppl 1): 31 .
  • de Silva A P, Niriella M A, Perera NJAHD, Aryasinghe JVS, Kalobowila KVU, Manchanayake MMJH, Dassanayake AS, Pathmeswaran A, de Silva HJ . Is a six hour fast after a rice meal sufficient before uppe r gastrointestinal endoscopy? Sri Lanka Medical Association, Ceylon Medical Journal 2009; 54 (suppl 1): 31 .
  • de Silva HA, Ranasinha CD, Pathmeswaran A, Jayam anne S, Kalupahana R, Ratnatilaka GA, Ariyasena H, Uluwatte W, Lalloo DG, Armitage J, Aronson JK, de Silva HJ . Prevention of acute adverse reactions to snake antivenom after snakebite: multi - centre, randomized, controlled clinical trial. Sri Lanka Medical Association, Ceylon Medical Journal 2009; 54 (suppl 1): 14 .
  • Amarasiri L, Ranasinha C, de Silva HJ . Response of the stomach to a solid - liquid meal in adult asthmatics. Physiological Society of Sri Lanka 2008 .
  • Manamperi A, Silva Gunawardene YIN, Hapuarachchi C, Bandara A, Wellawatta C, Abeyewickreme W, de Silva J . Application of nucleic acid technology (NAT) in the diagnosis of active viral replication in HBV and HCV infections and evidence for HBV surface antigen mutants. Proceedings of the Annual Sessions of the Sri L anka Association for the Advancement of Science 2008; 12 .
  • Manamperi A, de Silva P, Ekanayake C, Silva Gunawardene YIN, de Silva J , Weerasena OVDSJ, Dassanayake RS. Rapid differential diagnosis of dengue and chikungunya inf ections by multiplex RT - PCR and impact of chikungunya infection on liver biochemical tests. Proceedings of the Annual Sessions of the Sri Lanka Association for the Advancement of Science 2008; 1.
  • Wickremasinghe AR, de Silva HJ , de Silva HA, de Silva NR, Kasturiratne A, Pini diyapathirage J, Chakrawarthy S, Pathmeswaran A, Weerasinghe GAK, Abeyewickreme W, Makaya M, Mizoue T, Kato N. The Ragama health study: the methodology of the prospective cohort study for the establishment of diagnostic criteria for metabolic syndrome in Sri Lankans. Sri Lanka Medical Association, Ceylon Medical Journal 2008; 53 (suppl 1): 64
  • Premaratna R, Bailey MS, Loftis AD, Dasch GA, de Silva HJ . A descriptive study of 63 patients with rickettsial infections; Reasons for delay in the diagnosis. Sri Lanka Medical Association, Ceylon Medical Journal 2008; 53 (suppl 1): 41.
  • De Silva AP, Dassanayake AS, Hewavisenthi J, Liyanage DLMN, Dissanayake I, de Silva HJ. Microscopic colitis not otherwise specified (NOS) in patients with diarrhoea predominant IBS in a tropical setting. Sri Lanka Medical Association, Ceylon Medical Journal 2008; 53 (suppl 1): 39.
  • De Silva AP, Karunayake AL, Dissanayaka TGI, Dassanayake AS, Duminda HKKT, de Silva HJ . I s osteoporosis more common among adult Sri Lankans with Inflammatory Bowel Disease (IBD)? Sri Lanka Medical Association, Ceylon Medical Journal 2008; 53 (suppl 1): 33 .
  • Dassanayke AS, de Silva AP, Kalubowila U, Rajindrajith S, de Silva HJ . Epidemiology of n on - alcoholic fatty liver disease (NAFLD) among adults in an urban Sri Lankan community. Sri Lanka Medical Association, Ceylon Medical Journal 2008; 53 (suppl 1): 25
  • Premaratna R, Chandrasena TGAN, Gunawardena NK, de Silva NR, de Silva HJ . Filarial dance sign (FDS) in patients with lymphatic filariasis. Sri Lanka Medical Association, Ceylon Medical Journal 2008; 53 (suppl 1): 21.
  • Ranawaka UK, Premaratne R, Kumari NBANA, Siri wardena VSN, Cooray MMS, Tissera WAJN, Kulatunga A, de Silva HJ . Pattern of CNS infections presenting to a Teaching Hospital. Sri Lanka Medical Association, Ceylon Medical Journal 2008; 53 (suppl 1): 14
  • Pre maratne R, Ratnasena BGN, de Silva HJ . Accidental scrotal burns due to paraquat while handling a patient with deliberate self - harm. Sri Lanka Medical Association, Ceylon Medical Journal 2007; 52 (suppl 1): 46.
  • Dassanayake AS, Mendis H, de Silva AP, de Silva HJ . Gastric antral vascular ectasia (GAVE) in patients with cirrhosis. Sri Lanka Medical Association, Ceylon Medical Journal 2007; 52 (suppl 1): 44.
  • Wijesuriya MTW, Bailey MS, Premaratne R, Withiekanun V, Peacock SJ, Lalloo DG, de Silva HJ . Antibiotic use and antibacterial activity in urine of febrile patients. Sri Lanka Medical Associ ation, Ceylon Medical Journal 2007; 52 (suppl 1): 29.
  • Bailey MS, Wijesuriya T, Premaratne R, de Silva NR, Withiekanun V, Peacock SJ, Lalloo DG, de Silva HJ . A fever study at the Colombo North Teaching Hospital. Sri Lanka Medical Association, Ceylon Medical Journal 2007; 52 (suppl 1): 16.
  • Dassanayake AS, Manamperi A, Gunawardena N, Abeywickrema W, de Silva AP, Silva HJ . Low prevalence of Hepatitis B and C molecular markers in a cohort of Sri Lankan patients with hepatocellular ca rcinoma. Sri Lanka Medical Association, Ceylon Medical Journal 2007; 52 (suppl 1): 14.
  • Dassanayake AS, Munasinghe CS, Mettananda KCD, de Silva AP, de Silva HJ . Aetiology of cirrhosis in a tertiary referral centre in Sri Lanka. Sri Lanka Medical Association, Ceylon Medical Journal 2007; 52 (suppl 1): 14.
  • Gunaratne PAKG, Gurugama NP, Kularatne WAI, Kularatne SAM, de Silva HJ . Attitudes of Sri Lankan physicians towards end of life d ecisions and care. Sri Lanka Medical Association, Ceylon Medical Journal 2007; 52 (suppl 1): 11.
  • Premaratne R, Bailey MS, Fernando MJ, Ratnasena BGN, de Silva H J . Dengue fever presenting as acute appendicitis. Sri Lanka Medical Association, Ceylon Medical Journal 2007; 52 (suppl 1): 7.
  • Devanarayana NM, de Silva DGH, de Silva HJ . Recurrent abdominal pain syndrome in children is a significant burden on the health care system of Sri Lanka: a gastric motility disorder? Annual Research Symposium, Faculty of Graduate Studies, University of kelaniya, 2006; 88. (A MS - 07).
  • Devan arayana NM, de Silva DGH, de Silva HJ . Role of antral motility in gastric emptying of liquids: A paediatric study. Physiological Society of Sri Lanka, 2006. (A3).
  • Premaratne R, Rajindrajith S, Mettananda C, Balasooriya H, Fonseka J, Randeny S, de Silva HJ . Knowledge and expectations of parent s regarding the role of antibiotic treatment of upper respiratory tract infections (URTI) – a survey among parents attending a tertiary care institution with a sick child. Sri Lanka Medical Association, Ceylon Medical Journal 2006; 51 (suppl 1): 42.
  • Devanarayana NM, de Silva DGH, de Silva HJ . Recurrent abdominal pain a mong children: its role in school performance. Sri Lanka Medical Association, Ceylon Medical Journal 2006; 51 (suppl 1): 36
  • Amarasiri WADL, Ranasinghe C, Pathmeswaran A, de Silva HJ . Validatio n of a gatro - oesophageal reflux disease (GERD) specific screening instrument for epidemiological purposes. Sri Lanka Medical Association, Ceylon Medical Journal 2006; 51 (suppl 1): 21.
  • de Silva AP, Amarasiri L, Kottahachchi DC, Dassanayake A, de Silva HJ . One hour fast for li quids prior to upper gastrointestinal endoscopy is safe, effective and results in minimum patient discomfort. Sri Lanka Medical Association, Ceylon Medical Journal 2006; 51 (suppl 1): 9.
  • Premaratne R, Pathmeswaran A, Amarasekera NDDM, Motha MBC, Perera KVHKK, de Silva HJ . A clinical gui de for dengue detection, appropriate timing of investigation and hospital admissions. Sri Lanka Medical Association, Ceylon Medical Journal 2005; 50 (suppl 1): 20.
  • Premaratna R, Chandrasena TGAN, Dassanayake AS, Loftis A, N Dasch GA, de Silva HJ . Acute hearing loss in f ebrile patients; a predictor of scrub typhus. Sri Lanka Medical Association. Sri Lanka Medical Association, Ceylon Medical Journal 2005; 50 (suppl 1): 41.
  • Premaratna R, Premaratna K, Mettananda KCD, Balasooriya BLH, Rodrigo N, Ranepura S, Jayasooriya I, de Silva HJ . Factors determining antibiotic prescription for patients wit h febrile illness among first contact doctors in the Gampaha district. Sri Lanka Medical Association, Ceylon Medical Journal 2005; 50 (suppl 1): 38 .
  • Pathmeswaran A, de Silva NR, de Silva N, Edirisinghe JS, Parameswaran SV, Seneviratne R, Warnasuriya N, de Silva HJ . Limitations of current measures used for selection of students to medical schools in Sri La nka. Sri Lanka Medical Association, Ceylon Medical Journal 2005; 50 (suppl 1): 30.
  • de Silva AP, Mettananda KCD, Dassanayake A, Aryasinghe S, Deen KI, de Silva HJ . Inflammatory bowel disease (IBD) in a tertiary referral center in Sr Lanka. Sri Lanka Medical Association, Ceylon Medical Journal 2005; 50 (suppl 1): 24.
  • Hewavisenthi SJdeS, Pathmeswaran A, de Silva HJ . The value of BRUNT scoring in predicting the short tem outcome of non - alcoholic steatohepatitis. Sri Lanka Medical Association, Ceylon Medical Journal 2005; 50 (suppl 1): 6 .
  • Premaratne R, Weerasinghe M, Vipulanayake T, Mettananda KCD, Balasooriya H, de Silva HJ . Consumer knowledge and demand for antibiotics in the Gampaha district. Sri Lanka Medical Association, Ceylon Medical Journal 2005; 50 (suppl 1): 39
  • Devanarayana NM, de Silva DGH, de Silva HJ . Recurrent abdominal pain syndrome among school children in the Gampaha district in Sri Lanka. Sri Lanka Medical Association, Ceylon Medical Journal 2005; 50 (suppl 1): 37
  • Fox S, Ratuvithana AC, Kasturiratne A, Lalloo DG, de Silva HJ . Underestimat ion of snakebite mortality by hospital statistics in the Monaragala district. Sri Lanka Medical Association, Ceylon Medical Journal 2005; 50 (suppl 1): 27
  • de Silva HJ , Fonseka MMD, Kasturiratne A, Pathmeswaran A, Na ndasena S, Lalloo DG. Identifying the offending species in snakebite: a clinical score for use in community based epidemiological surveys . Sri Lanka Medical Association, 2004; 55.
  • Sunil Chandra NP, Premaratne R, Somasiri DADH, de Silva HJ . Evidence of leptospira and hanta virus co - infections amongst patients hospitalized for leptospirosis - like illness. Bulletin of the Sri Lanka Colege of Microbiologists, 2003; 1: 32 - 33
  • Navaratne NMD, Hewavisenthi J, de Silva HJ . Clinical features and treatment outcomes of patients with symptoms of irritable bowel syndrome (IBS) with and without non - specific colitis (NSC) on histology. Sri Lanka Medical Association, 2003; 42
  • de Silva HA, Fonseka MMD, Pathmeswaran A, AlahakoneDGS, Ratnatilake GA, Gunatilake S B, Ranasinha CD, Lalloo DG, Aronson JK, de Silva HJ . Management of yellow oleander poisoning with multiple - dose activated charcoal: a randomized placebo - controlled trial. Sri Lanka Medical Association, 2003; 41 - 42.
  • Makita LS, Nandasena S, Costa R, Kasturiratn e A, Pathmeswaran A, Lalloo DG, de Silva HJ . Beliefs and knowledge regarding snakebite in rural Sri Lanka: a qualitative survey. Sri Lanka Medical Association, 2003; 40.
  • Kasturiratne A, Pathmeswaran A, Fonseka MMD, Lalloo DG, Brooker S, de Silva HJ . Estimates of disease burden due to snakebite in Sri Lankan hospitals. Sri Lanka Medical Association, 2003; 41.
  • de Silva HJ , Herath CA, Sheriff MHR. Lamivudine therapy for Hepatitis B (HBV) infection in post transplant patients: results after 12 months follow up. Sri Lanka Medical Association, 2002; 43.
  • Gunasekera HAKM, Sunil - Chandra NP, de Silva HJ. Hepatitis C seroprevalence: a comm unity survey from the Gampaha district. Sri Lanka Medical Association, 2002; 48.
  • AS Dassanayake, P Karunanayake, KTAA Kasturiratne, MMD Fonseka, B Wijesiriwardena, SB Gunathilake, HJ de Silva . Safety of low dose subcutaneous adrenaline used as prophylaxis against acute reactions to anti - venom serum (AVS) in patients bitten by snakes. Sri Lanka Medical Association, 2002; 58 – 59.
  • Fonseka MMD, Arthanayake A, Gunatilake SB, de Silva HJ . Medical students and preintern doctors views on clinical training methods. Sri Lanka Medical Association, 2001; 47 - 48
  • Seneviratne SL, de Silva CE, Fonseka MMD, Gunatilake SB, de Silva HJ . Outcome of management of yellow oleander poisoning in a Base Hospital setting. Sri Lanka Medical Association, 2001; 41 - 42
  • Seneviratne SL, de Silva CE, Fonseka MMD, Gunatilake SB, de Silva HJ . Outcome of envenomation due to snake bite during pregnancy. Sri Lanka Medical Association, 2001; 41
  • Seneviratne SL, de Silva CE, Fonseka MMD, Gunatilake SB, de Silva HJ . Postmortem findings in yellow oleander poisoning. Sri Lanka Medical Association, 2001; 40 - 41
  • Hirimuthugoda L, Dassanayake AS, Fonseka MMD, Tilakaratne Y, Gunatilake SB, de Silva HJ. Scrub typhus in an urban and semi - urban population. Sri Lanka Medical Association, 2001; 33.
  • Hewavisenthi SJ de S, de Silva HJ. Profile of NASH in a Sri Lankan population. Sri Lanka Medical Association, 2001; 26 - 27.
  • Premaratne R, Chandrasena TGAN, Abeywickrema W, de Silva NR, Chandrasena LG, de Silva HJ. Clearance of microfilaraemia and red blood cell glutathione peroxidase levels in asymptomatic microfilaraemics after single dose and fourteen day s treatment with diethyl carbamazine citrate in persons with asymptomatic microfilaraemia. Sri Lanka Medical Association, 2001; 24 - 25.
  • Premaratne R, Chandrasena TGAN, Abeywickrema W, de Silva NR, Chandrasena LG, de Silva HJ. Red blood cell antioxidant levels after treatment with diethyl carbamazine citrate in persons with asymptomatic microfilaraemia. Sri Lanka Medical Association, 2001; 23 - 24.
  • de Silva HA, Thabrew MI, Saparamadu PAM, Pathmeswaran A, Fonseka MMD, de Silva HJ. Efficacy of Liv 52 in alcoholic liver disease. Sri Lanka Medical Association, 2001; 23.
  • Ferdinandis H, Dissanayake AS, de Silva HJ . P ostprandial E G G abnormalities in chronic alcoholics. Physiological Society of Sri Lanka, 2000 .
  • Premaratne R, Sathischandra H, Thilakaratne Y, Shantharaj W, de Silva HJ. Effect of propranolol and nitrates on cardio - respiratory function in cirrhotic patients. Sri Lanka Medical Association, 2000; 25 - 26.
  • Premaratne R, Chandrasena N, Chandrasena LG, Senerath S, de Silva NR, de Silva HJ. Antioxidants in filariasis. Sri Lanka Medical Association, 2000; 32 - 33
  • Premaratne R, Dissanayake AS, de Silva HJ . Effects of pollutio n on health of residents in an industrial area in Sri Lanka. Sri Lanka Medical Association, 2000; 29
  • Samarasekera D N, Gunawardena PAHA, de Silva HJ. Role of oesophageal manometry and pH studies in the diagnosis of endoscopy negative upper gastrointestinal disorders. Sri Lanka Medical Association, 1999; 28
  • Premawardhena AP, de Silva CE, Fonseka MMD, Gunatilake SB, de Silva HJ . Low dose subcutaneous adrenaline to prevent acute adverse reactions to antivenom serum in snake bite patients. Sri Lanka Medical Association, 1999; 21 - 22.
  • de Silva NR, Sirisena J, Gunasekera D, de Silva HJ . Alcohol consumption in pregnancy in Ragama and Peradeniya. Fourth International Medical Congress, University of Peradeniya 1998; 91.
  • Abeyratne PD, Fonseka MMD, Gunatilake SB, de Silva HJ . Clinical audit on use of anti - coagulant therapy in patients with atrial fibrillation of rheumatic origin. Ceylon College of Physicians, 1998.
  • Samarasekera DN, Suraweera PHR, de Silva HJ, Dissanayake AS. Electrogastrography (EGG) and gastric motility: an investigation to evaluate gastric emptying in those who undergo oesophago - gastric anastomosis without pyloroplasty. Sri Lanka Medical Association, 1998.
  • Ferd inandis H, Dissanayake AS, de Silva HJ . Electrogastrographic observations in healthy adults. Sri Lanka Medical Association, 1998.
  • Deen KI, Jayakody M, de Silva AP, Bodhipakse S, de Silva HJ . Sapheno - peritoneal shunting for treatment of resistant ascites. Sri Lanka Medical Association, 1998
  • de Silva NR, Sirisena J, Gunasekera D, de Silva HJ . Effect of mebendazole therapy in pregnancy on birth outcome. Sri Lanka Medical Association, 1998.
  • Ferdinandis H, Dissanayake AS, de Silva HJ . Electrogastrographic observations on heathy Sri Lankans. Physiological Society of Sri Lanka, 1997 .
  • Samarasekera DN, Paris MAS, Dean KI, de Silva HJ . Audit of therapeutic and diagnostic colonoscopy in a university surgical unit. Galle Medical Association, Galle Medical Journal, 1(2), 1997
  • Deen K, Premaratne R, Fonseka MMD, de Silva HJ . The recto - anal inhibitory reflex (RAI R): abnormal response in diabetics suggests an intrinsic neuro - enteropathy. Sri Lanka Medical Association, 1997.
  • S eneviratne SL, Gunatilake SB, Adhikari AADNW, de Silva HJ . Changing prescribing behaviour - early aspirin in myocardial infarction. Sri Lanka Medical Association, 1997.
  • Seneviratne SL, Gunatilake SB, Fonseka MMD, Adhikari AADNW, de Silva HJ . Myocardial damage following viper bite. Proceedings of the Kandy Society of Medicine 1997; 74.
  • Seneviratne SL, Gunatilake SB, Molagoda A, Dharmaraja N, de Silva HJ . Anxiety and depression scores in post myo cardial infarction patients. Proceedings of the Kandy Society of Medicine 1997; 50.
  • de Silva HJ . Management of oesophagea l variceal bleeding (Update in Gastroenterology). Proccedings of the Third International Medical Congress, University of Peradeniya, 1996; 38.
  • Seneviratne SL, Gunatilake SB, de Silva HJ . Attitudes of health personnel towards patients with alcoholic liver disease. Proceedings of the Third International Medical Congress, University of Peradeniya 1996; 24.
  • Seneviratne SL, Gunawardena P, Pathmeswaran A, Gunatilake SB, de Silva HJ . Community outcome of notifications from a medical ward. Proceedings of the Third International Medical Congress, University of Peradeniya 1996; 2 2.
  • Seneviratne SL, Adhikari A, Gunawardena P, Gunatilake SB, de Silva HJ . Knowledge and attitudes of intern medical officers to notification of disease. Proceedings of the Third International Medical Congress, University of Peradeniya 1996; 22.
  • Seneviratne SL, Gunatilake SB, Adhikari A, de Silva HJ . Driving and epilepsy. Proceedings of the Third International Medical Congress, University of Peradeniya 1996; 2.
  • Seneviratne SL, Epa Liyanage P, Gamage P, de Silva HJ . Reporting notifiable diseases. Sri Lanka Medical Association 1996; 20 - 21
  • de Silva NR, Kodituwakku A, Edirisinghe S, de Silva HJ . Use of anthelmintics during pregnancy. Sri Lanka Medical Association 1996; 13 - 14.
  • Seneviratne SL, de Silva HJ , Gunatilake SB, Premawardena A, Ranasinghe G. Omission of early aspirin therap y in patients with suspected myocardial infarction by primary care doctors. Sri Lanka Medical Association 1996; 17.
  • Seneviratne SL, Adhikari AADNW, Gunawardena P, Gunatilake SB, de Silva HJ . Views of firs t contact doctors on early aspirin therapy in patients with suspected myocardial infarction. Proceedings of the Kandy Society of Medicine 1996; 44.
  • Satyabama K, Seneviratne SL, Gu natilake SB, de Silva HJ . A significant proportion of hospital admissions are unnecessary: results of an audit. Proceedings of the Kandy Society of Medicine 1996; 36.
  • Suraweera PHR, Walpola SH, Abeysinghe LC, Mabulage S, de Silva HJ. Some socio - demographic factors related to assault. International Medical Congress, University of Colombo 1995; 28.
  • Premawardena A, Kasturiaratchi N, Senaratne DC, Ellawala NS, de Silva HJ . Association between mental disorders and attempted suicide . International Medical Congress, University of Colombo 1995; 27.
  • de Silva AP, de Silva HJ . Analysis of the histological composition of solitary nodules of the thyroid in females. Proceedings of the Kandy Society of Medicine 1995; 20 - 22.
  • de Silva AP, de Silva HJ . A study of malignancies operated on in surgical units of General Hospital Kalutara. Proceedings of the Kandy Society of Medicine 1995; 22 - 23.
  • de Silva HJ , Ratnatunga N, Ramadasa S. Hepatitis B virus markers in primary hepatocellular carcinoma. Proceedings of the Second International Medical Congress, University of Peradeniya 1994; 121
  • de Silva AP, de Silva HJ, Fonseka C. Effect of music on blood pressure in healthy young men. Proceedings of the Second International Medical Congress, University of Peradeniya 1994; 120
  • de Silva HJ . Helicobacter pylori. Proceedings of the Second International Medical Congress, University of Peradeniya 1994; 75 - 76.
  • Senanayake N, de Silva HJ. Absence of anti - Purkinje cell antibodies in patients with cerebellar ataxia following falciparum malaria. Sri Lanka Medical Association 199 4; 3 - 4
  • de Silva HJ , Ratnatunga N, Breschkin A, Bowden S, Vitarana T. Detection of antibodies to Hepatitis C virus using the 'Auspep' peptide assay - preliminary report. Sri Lanka Medical Association 1994; 13.
  • Thevanesam V, Fernando ATPG, Gamage T, de Silva HJ. Antib iotic resistance in clinical isolates of Salmonella typhi. Proceedings of the Sri Lanka Association for the Advancement of Science 1993; 7 - 8
  • K asturiaratchi ND, de Silva HJ. A retrospective hospital study of attempted suicide: a preliminary communication. Proceedings of the Sri Lanka Association for the Advancement of Science 1993; 33 - 34.
  • de Silva NR, de Silva HJ, Jayapani VPP. Intestinal parasitoses in the Kandy area: prevalence in slum children and adult out - patients. Proceedings of the Sri Lanka Association for the Advancement of Science 1993; 5
  • de Silva HJ, de Silva NR, Jayapani VPP. Abdominal symptoms and intestinal parasitoses: a case controlled study. Proceedings of the Sri Lanka Association fo r the Advancement of Science 1993;4
  • de Silva HJ, Sanmuganathan P, Senanayake N. Bilateral recurrent la ryngeal nerve palsy complicating organophosphorus poisoning. Sri Lanka Medical Association 1993; 8.
  • Senanayake N, de Silva HJ , Karalliedde L. The Peradeniya Organophosphorus Poisoning scale. Sri Lanka Medical Association 1993; 8.
  • Sirisena J, de Silva HJ , Fernando WS. A rare patient with osteomalacia presenting in the 32nd week of pregnanc y. Proceedings of the Kandy Society of Medicine 1993; 28.
  • de Silva HJ , Wickremasinghe AR, Ratnatunga N, Kularatne WNS, Jayawardena PL. Association between biochemical liver function tests and histological evidence of liver damage in patients with alcohol dependence. Proceedings of the Kandy Society of Medicine 1993; 15
  • Jayawardena J, de Silva HJ . Jaundice and Gilbert's disease in pregnancy. Sri Lanka College of Obstetricians & Gynaecologists (Silver Jubilee Congress) 1992.
  • de Silva HJ , Kularatne WNS, Ratnatunga N, Withane N, Vitarana T. Hepatitis C status in Sri Lankan patients with alcoholic cirrhosis. Proceedings of the First International Medical Congress, University of Peradeniya 1992; 119
  • de Silva HJ , Jayawardena J, Pethiyagoda AU, Pethiyagoda CJB, Ranaraja ASK, Sirisena JL. Incidence and outcome of viral hepatitis complicating pregnancy - a five year hospital study. Proceedings of the First International Medical Congress, University of Peradeniya 1992; 118.
  • de Silva HJ , de Silva NR, Dunuwille A, Kandanarachchi S, Senanayake N. An epidemiological study of delayed cerebellar ataxia complicating falciparum malaria. Proceedings of the First International Medical Congress, University of Peradeniya 1992; 106
  • de Silva HJ , Herath S, de Silva NR. Urinary frequency: a new complication of falciparum malaria. Proceedings of the First International Medical Congress, University of Peradeniya 1992; 104.
  • Senanayake N, de Silva HJ , Karalliedde L. A clinical scale to grade severity in organophosphorus poisoning: the POP scale. Proceedings of the First International Medical Congress, University of Peradeniya 1992; 99.
  • de Silva HJ, Samarasinghe DS, Ellawala NS. Outcome of rehabilitation of a lcohol dependent persons - a two year follow - up study. Sri Lanka Medical Association 1992; 30.
  • Senanayake N, de Silva HJ, Illangasekera UI, Wijekoon ASB, Shanmuganathan PS. Periodic paralysis - a diagnosis often missed. Sri Lanka Medical Association 1992; 19.
  • de Silva HJ , Samarasinghe DS, Ellawala NS. The influence of abstinence on mortality among alcohol dependent persons. Sri Lanka Medical Association 1992; 13
  • de Silva HJ, de Silva NR, Peiris JB. Immu ne activation during cerebellar dysfunction following falciparum malaria. Sri Lanka Medical Association 1992; 12.
  • Senanayake N, de Silva HJ, Illangasekera UI, Wijekoon ASB, Shanmuganathan PS. Periodic Paralysis - a report of six patients. Proceedings of the Kandy Society of Medicine 1992; 1.
  • de Silva HJ, Gamage R, Herath HKN, Karunanayake MGS, Peiris JB. Plasma exchange therapy in the treatment of the Guillain - Barre syndrome. Sri Lanka Medical Association 1987; 52 - 53.
  • de Silva HJ, Gamage R, Herath HKN, Abeysekera DTDJ, P eiris JB. Delayed Cerebellar involvement in Falciparum malaria. Sri Lanka Medical Association 1987; 46.
  • de Silva HJ, Fernando DPA, Wickremasinghe SYDC, de Silva PT, Dharmadasa K. Endoscopy in the diagnosis of acute upper gastrointestinal haemorrhage. Sri Lanka Medical Association 1986; 41.
  • de Silva HJ, Ruberu R, Sheriff MHR, Dharmadasa K. A preliminary study of bacteriuria in patients with renal disease. Sri Lanka Medical Association 1983; 7 - 8.
Communications with no Published Abstracts :
  • de Silva HJ . Eosinophilic colitis following amoebic dysentery - case presentation. Postgraduate Cours e in Gastroenterology, University of Oxford, 1997.
  • de Silva HJ, Davies AH, de Angelis CP, Jewell DP, Kettlewe ll M, Mortensen NJ. Functional results and surgical complications in 3 pouch types. European Society for Surgical Research, Salzburg, Austria , May 1991 .
  • de Silva NR, de Silva HJ, VPP Jayapani. Intestinal parasitoses among adult ou tpatients at the Teaching Hospital Peradeniya. Natural Resources Energy and Science Authority (NARESA) 25th Anniversary Exhibition , Colombo, Dec. 1993.
  • de Silva HJ . The influence of abstinence on mortality among alcohol dependent persons. Research Colloquium, Alcohol and Drug Information Centre: Colombo, Nov. 1992
  • de Silva HJ , Senanayake N, Wijewickrema R. Does pralidoxime affect the outcome of management in organophosphate poisoning? Sri Lanka Medical Association and Kandy Society of Medicine (joint meeting): Peradeniya, Dec. 1991*.
  • de Silva HJ, Davies AH, de Angelis CP, Jewell DP, Kettlewell M, Mortensen NJ. Comparison of surgical complications and functional results in 3 pouch types. Association of Surgeons of Great Br itain and Ireland, Oxford, UK , March 1991 .
  • de Angelis CP, de Silva HJ, Dehn TCB, Mortensen N. Totally stapled J shaped reservoir with double stapled ileo - rectal anastomosis. Associazione Italiana di Vi scero Sintesi, 2o Congresso Nazionale, Ischia, Italy , May 1990 .
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