"The Faculty aspires to be an internationally recognised institution of higher education in a culture of excellence and integrity that helps to generate and impart knowledge in the
medical sciences"
Prof. Niranga Devanarayana
MBBS (Ruhuna), DM (Kel'ya), PhD (Amsterdam)
Cadre Chair and Professor
Head, Department of Physiology
Specialization
Gastrointestinal Physiology
Research Interests
- Gastrointestinal Motility
- Functional Gastrointestinal Disorders
- Abdominal pain
- Constipation
- Brain-gut axis
- Helicobacter pylori
Awards and Fellowships
- University of Kelaniya, Senate Honours for Research Publication (2016). For conducting high quality research and publishing in peer reviewed indexed journals
- University of Kelaniya, Senate Honours for Research Publication (2015). For conducting high quality research and publishing in peer reviewed indexed journals
- Best Oral Presentation - The Annual Sessions 2015, The Physiological Society of Sri Lanka. Is awarded to the abstract title: “Effects of body mass index on gastric motility in children with abdominal pain-predominant functional gastrointestinal disorders”. Karunanayake A, Devanarayana NM, Rajindrajith S.
- Best Oral Presentation – 1st Runner up - The Annual Sessions 2015, The Physiological Society of Sri Lanka. Is awarded to the abstract title: “The therapeutic effects of domperidone on abdominal pain-predominant functional gastrointestinal disorders in children: randomized, double-blind, placebo-controlled trial”. Karunanayake A, Devanarayana NM, Rajindrajith S, De Silva A.
- President’s Awards for Scientific Publication 2014. Awarded by the National Research Council of Sri Lanka.
- University of Kelaniya Cash Award – 2014 For research papers published in the journals indexed in Science Citation Index
- University of Kelaniya, Senate Honours 2014 For publication of papers in High Quality Journals.
- University of Kelaniya Cash Award – 2014 For winning Presidents Awards
- Vice-Chancellor's Awards 2014 Award for bringing honour to the University by winning prestigious awards,University of Kelaniya, Sri Lanka.
- President's Awards for Scientific Publication 2013. Awarded by the National Research Council of Sri Lanka.
- Vice-Chancellor's Awards 2013 Award for bringing honour to the University by winning prestigious awards,University of Kelaniya, Sri Lanka.
- IFFGD Research Award 2013 – Junior Investigator in Pediatrics Awarded by the International Foundation for Functional Gastrointestinal Diseases (IFFGD), Miwaukee, USA
- President's Awards for Scientific Publication 2012. Awarded by the National Research Council of Sri Lanka.
- Vice-Chancellor's Awards 2012 Award for bringing honour to the University by winning prestigious awards,University of Kelaniya, Sri Lanka.
- Vice-Chancellor's Awards 2011 Award for bringing honour to the University by winning prestigious awards,University of Kelaniya, Sri Lanka
- President's Awards for Scientific Publication 2011 Awarded by the National Research Council of Sri Lanka.
- Poster prize for the best poster, European Paeditric Motility Meeting 2011, Amsterdam, The Netherlands, is awarded to the abstract titled "Gastric emptying and antral motility according to the subtypes of irritable bowel syndrome: a paediatric study". Devanarayana NM, Rajindrajith S.
- The vice Chancellor Award for the Most Outstanding Young Researcher – 2010 Faculty of Medicine, University of Kelaniya, Sri Lanka
- Vice-Chancellor's Awards 2010 Award for bringing honour to the University by winning prestigious awards, University of Kelaniya, Sri Lanka.
- President's Awards for Scientific Publication 2010. Awarded by the National Research Council of Sri Lanka.
- Hiran Tillakeratne Special Award for Research (in the field of Medicine) 2007-2009 Awarded by the University Grants Commission, Ministry of Higher Education, Sri Lanka For the thesis titled "Gastric myoelectrical activity, gastric emptying time and oro-caecal transit time in children with recurrent abdominal pain syndrome".
- K.N. Seneviratne Research Award 2009 Awarded by the Physiological Society of Sri Lanka. For the research work carried out on "The recurrent abdominal pain in school children: association with gastrointestinal motility"
- Vice-Chancellor's Awards 2009 Award for bringing honour to the University by winning prestigious awards, University of Kelaniya, Sri Lanka
- Professor Ebrahim Prize for the Best Paper in Tropical Paediatrics Is awarded to, Functional abdominal pain in children and adolescents:Association with impaired gastric motility. Devanarayana NM, Dharmawansa R, Rajindrajith S. 6th Congress of the Paediatric Association of South Asian Countries 2009, Colombo, Sri Lanka. Abstract no. FP 02.
- President's Awards for Scientific Publication 2008. Awarded by the National Research Council of Sri Lanka.
- The vice Chancellor Award for the Most Outstanding Young Researcher – 2008 Faculty of Medicine, University of Kelaniya
Publications
Books, Book Chapters , Sections and Study Guides
- Chapter 7 - Clinical evaluation of children with constipation: History and physical examination. Rajindrajith S, Devanarayana NM. In: Constipation in children. Diagnosis and treatment. Editors: Nunez RN and Fabbro MA. Nova Science Publishers Inc. New Yolk. 2013; pp 167-184. ISBN: 978-1-62417-825-2
- Chapter 1– Global prevalence and international perspective of paediatric gastrointestinal disorders. Rajindrajith S, Devanarayana NM, Benninga MA. In: Paediatric Gastrointestinal disorders: a psychosocial perspective. Editors. Martin C, Dovey T. Radcliffe Publishing. London. 2014; pp 11-23. ISBN: 13:978 184619 995 0
- Chapter 21 – Defecation disorders in children: Constipation and functional fecal incontinence.Rajindrajith S, Devanarayana NM, Benninga MA. In: Textbook of Pediatric Gastroenterology, Hepatology and Nutrition. Editors Guandalini S, Dhawan A and Branski D. Springer International Publishing, Now York . 2016; pp 247-260. ISBN: 978-3-17169-2.
- Epidemiological and pathophysiological aspects of abdominal pain predominant functional gastrointestinal disorders in children and adolescents: a Sri Lankan perspective. Devanarayana NM. Thesis (PhD), University of Amsterdam, The Netherlands. Gunaratne Offset (PVT) ltd, Colombo. 2015; pp 1-251.ISBN: 978-955-42488-0-9
- Constipation and constipation-predominant irritable bowel syndrome: a comparative study using Rome III criteria. Rajindrajith S, Devanarayana NM, Benninga MA. Journal of Pediatric Gastroenterology and Nutrition 2017; 64(5): 679-684.
- Prevalence and risk factors for functional constipation in adolescent Nigerians. Udoh EE, Rajindrajith S, Devanarayana NM, Benninga MA. Archives of Diseasese in Childhood 2017; 64(5): 879-684
- Psychological maladjustment and quality of life in adolescents with constipation. Ranasinghe N, Devanarayana NM, Benninga MA, van Dijk M, Rajindrajith S. Archives of Disease in Childhood 2017; 102(3): 268-273.
- Childhood constipation as an emerging public health problem. Rajindrajith S, Devanarayana NM, Crispus Perera BJ, Benninga MA. World Journal of Gastroenterology 2016; 22(30): 6864-75.
- Abdominal migraine in children: association between gastric motility parameters and clinical characteristics. Devanarayana NM, Rajindrajith S Benninga MA. BMC Gastroenterology 2016; 16: 26
- Rajindrajith, Shaman, Niranga Manjuri Devanarayana, and Marc Alexander Benninga. "Faecal Incontinence in Adolescents is Associated with Child Abuse, Somatisation and Poor Health Related Quality of Life."Journal of pediatric gastroenterology and nutrition (2015).
- Udoh, Ekong, Niranga Manjuri Devanarayana, Shaman Rajindrajith, Martin Meremikwu, and Marc Alexander Benninga. "Abdominal Pain Predominant Functional Gastrointestinal Disorders in Adolescent Nigerians."Journal of pediatric gastroenterology and nutrition (2015).
- Devanarayana, Niranga Manjuri, Shaman Rajindrajith, Arunasalam Pathmeswaran, Chithra Abegunasekara, Nipul Kithsiri Gunawardena, and Marc Alexander Benninga. "Epidemiology of Irritable Bowel Syndrome in Children and Adolescents in Asia." Journal of pediatric gastroenterology and nutrition 60, no. 6 (2015): 792-798.
- Korterink, Judith, Niranga Manjuri Devanarayana, Shaman Rajindrajith, Arine Vlieger, and Marc A. Benninga. "Childhood functional abdominal pain: mechanisms and management."Nature Reviews Gastroenterology & Hepatology (2015).
- Devanarayana, Niranga Manjuri, Shaman Rajindrajith, Madushanka S. Perera, Samudu W. Nishanthanie, Amaranath Karunanayake, and Marc A. Benninga. "Association between functional gastrointestinal diseases and exposure to abuse in teenagers."Journal of tropical pediatrics (2014): fmu035.
- Devanarayana, N. M., S. Rajindrajith, and M. A. Benninga. "OP-20 THE ASSOCIATION BETWEEN ADVERSE LIFE EVENTS AND ABDOMINAL PAIN-PREDOMINANT FUNCTIONAL GASTROINTESTINAL DISORDERS." Journal of Pediatric Gastroenterology and Nutrition 61, no. 4 (2015): 517-518.
- Hovenkamp, Anne, Hannah AW Walter, Niranga M. Devanarayana, Shaman Rajindrajith, and Marc A. Benninga. "OP-17 INFANT DYSCHEZIA IN SRI LANKAN CHILDREN: EPIDEMIOLOGY AND RISK FACTORS." Journal of Pediatric Gastroenterology and Nutrition 61, no. 4 (2015): 516.
- Devanarayana, Niranga Manjuri, Shaman Rajindrajith, and Marc A. Benninga. "Quality of life and health care consultation in 13 to 18 year olds with abdominal pain predominant functional gastrointestinal diseases." BMC Gastroenterology14, no. 1 (2014): 150.
- Devanarayana, Niranga Manjuri, Shaman Rajindrajith, Madushanka S. Perera, Samudu W. Nishanthanie, Amaranath Karunanayake, and Marc A. Benninga. "Association Between Functional Gastrointestinal Diseases and Exposure to Abuse in Teenagers." Journal of Tropical Pediatrics (2014): fmu035
- Gastric emptying and antral motility parameters in children with functional dyspepsia: association with symptom severity. Devanarayana NM, Rajindrajith S, Perera MS, Nishanthani SW, Benninga MA.Journal of Gastroenterology and Hepatology 2013 Mar 21. [Epub ahead of print].
- Functional gastrointestinal diseases in children: facing the rising tide. Rajindrajith S, Devanarayana NM.Journal of Gastroenterology and Hepatology 2013; 28: 28-10.
- Ultrasonographic assessment of liquid gastric emptying and antral motility according to the subtypes of irritable bowel syndrome in children. Devanarayana NM, Rajindrajith S, Bandara C, Shashipraba G, Benninga MA. Journal of Pediatric Gastroenterology and Nutrition 2012 Nov 27. [Epub ahead of print]
- Rumination syndrome in children and adolescents: a school survey assessing prevalence and symptomatology. Rajindrajith S, Devanarayana NM, Crispus Perera BJ. BMC Gastroenterology 2012; 12: 163.
- Review article: feacal incontinence in children: epidemiology, pathophysiology, clinical evaluation and management. Rajindrajith S, Devanarayana NM, Benninga MA. Alimentary Pharmacology and Therapeutics. 2013; 37: 37-48.
- Subtypes and symptomatology of irritable bowel syndrome in children and adolescens: a school-based survey using Rome III criteria. Rajindrajith S, Devanarayana NM. Journal of Neurogastroenteroloy and Motility 2012: 18: 298-304.
- Delayed gastric emptying rates and impaired antral motility in children fulfilling Rome III criteria for functional abdominal pain.Devanarayana NM, Rajindrajith S, Rathnamalala N, Samaraweera S, Benninga MA. Neurogastroenterology and Motility 2012, 24: 420-5
- Children and adolescents with chronic constipation: How many seek healthare and what determines it?Rajindrajith S, Devanarayana NM, Benninga MA. Journal of Tropical Pediatrics 2012; 58: 280-5
- Aerophagia among Sri Lankan school children: epidemiological patterns and symptom characteristics.Devanarayana NM, Rajindrajith S. Journal of Pediatric Gastroenterology and Nutrition 2012; 54: 516-20
- Abdominal pain predominant functional gastrointestinal diseases in children and adolescents: prevalence, symptomatology and association with emotional stress. Devanarayana NM, Mettananda S, Liyanarachchi C, Nanayakkara N, Mendis N, Perera N, Rajindrajith S. Journal of Pediatric Gastroenterology and Nutrition 2011; 53: 659-65
- Constipation during and after the civil war in Sri Lanka: a paediatric study. Rajindrajith S, Mettananda S, Devanarayana NM. Journal of Tropical Pediatrics 2011; 57: 439-43.
- Constipation in children: Novel insight into epidemiology, pathophysiology and management.Rajindrajith S, Devanarayana NM. Journal of Neurogastroenterology and Motility 2011;17:35- 47.
- Constipation in children: Novel insight into epidemiology, pathophysiology and management. Rajindrajith S, Devanarayana NM. Journal of Neurogastroenterology and Motility 2011;17:35- 47.
- Prevalence of functional gastrointestinal diseases in a cohort of Sri Lankan adolescents: comparison between Rome II and Rome III criteria.Devanarayana NM, Adhikari C, Pannala W, Rajindrajith S. Journal of Tropical Pediatrics 2011;57:34-39.
- Constipation-associated and nonretentive fecal incontinence in children and adolescents: and epidemiological survey in Sri Lanka. Rajindrajith S, Devanarayana NM, Benninga MA. Journal of Pediatric Gastroenterology and Nutrition 2010; 51(4): 472-476
- Constipation in children: an epidemiological study in Sri Lanka using Rome III criteria. Rajindrajith S,Devanarayana NM, Adhikari C, Pannala W, Benninga MA. Archives of Diseases in Childhood 2012; 97: 43-5.
- Is a six hour fast after a rice meal sufficient before upper gastrointestinal endoscopy? De Silva AP, Niriella MA, Perera H, Aryasingha S, Kalubovila U, Manchanayake J, Dassanayake AS, Devanarayana NM, Pathmeswaran A, De Silva HJ. Scandinavian Journal of Gastroenterology 2010; 45: 987-91.
- Recurrent abdominal pain in children: A Sri Lankan perspective. Devanrayana NM. Sri Lanka Journal of Child Health. 2010; 39: 79-92.
- Association between constipation and stressful life events in a cohort of Sri Lankan children and adolescents.Devanarayana NM, Rajindrajith S. The Journal of Tropical Pediatrics 2009; 56(3): 144-8.
- Recurrent abdominal pain in children.Devanrayana NM, Rajindrajith S, de Silva HJ. Indian Pediatrics 2009; 46(5): 389-401
- Neonatal mortality in Sri Lanka: Timing, causes and distribution. Rajindrajith S, Mettananda S, Adihetti D, Goonawardana R, Devanarayana NM. The Journal of Maternal-Fetal and neonatal Medicine 2009; 22: 791-6.
- Helicobacter pylori infection in children. Rajindrajith S, Devanrayana NM, de Silva HJ. The Saudi Journal of Gastroenterology 2009; 15(2): 86-94.
- Constipation in children: diagnosis and management. Rajindrajith S, Devanarayana NM. Sri Lanka Journal of Child Health, 2009; 38: 127-135
- Helicobacter pylori infection in children. Rajindrajith S, Devanarayana NM, HJ de Silva. Sri Lanka Journal of Child Health, 2009; 38: 86-88
- Constipation and functional faecal retention in a group of school children in a district in Sri Lanka. Rajindrajith S, Devanarayana NM, Mettananda S, Perera P, Jasmin S, Karunarathna U, Adhihetty D, Goonewardena R. Sri Lanka Journal of Child Health, 2009; 38: 60-64
- Gastric myoelectrical and motor abnormalities in children and adolescents with functional recurrent abdominal pain.Devanarayana NM, de Silva DG, de Silva HJ. Journal of Gastroenterology and Hepatology 2008; 23(11): 1672-1677.
- Aetiology of recurrent abdominal pain in a cohort of Sri Lankan children.Devanarayana NM, de Silva DG, de Silva HJ. Journal of Paediatrics and Child Health. 2008; 44(4):195-200.
- Recurrent Abdominal Pain Syndrome in a Cohort of Sri Lankan Children and Adolescents.Devanarayana NM, de Silva DG, de Silva HJ. Journal of Tropical Pediatrics. 2008; 54(3): 178-183.
- Prevention of pre-sacral haemorrhage using thumb tacks. Sundaresan KT, Sugirtha S, Devanarayana NM, Ariyaratne MHJ, Deen KI. The Ceylon Medical Journal 1999; 44(2): 87-88
- Gastrointestinal motility testing and its applications. Devanarayana NM. The Physiological Society of Sri Lanka Newsletter 2014; 10: 5-7
- Gastrointestinal motility testing and its applications. Devanarayana NM. The Physiological Society of Sri Lanka Newsletter 2014; 10: 5-7
Contact Details
Department
Physiology
Physiology
Tel
+94 11 2957900 (Residence)
+94 77 7900939 (Mobile)
+94 11 2957900 (Residence)
+94 77 7900939 (Mobile)
Email
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