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Dr Kewin Siah Tien Ho

Photo of Dr Kewin Siah Tien Ho
MBBS (London), MRCP (UK), FAMS (Gastroenterology)
Consultant, Division of Gastroenterology and Hepatology, Department of Medicine, National University Hospital
Clinical lecturer, Department of Medicine, National University of Singapore
Sub Specialty:
Gastroenterology & Hepatology
Medical and Surgical Conditions:
Irritable Bowel Syndrome
Special Interest:
Irritable Bowel Syndrome
Chronic Constipation
Functional Gastrointestinal Diseases
General Gastroenterology & Hepatology
Neurogastroenterology & Motility
Bloating, Constipation and Dyspepsia Research
Health Services Research
Human Factors in Endoscopy
National University Hospital
National University Health System
Dr Siah studied medicine at Royal Free and University College Medical School, University College London. After completing his housemanship in the UK, he moved to Singapore to continue his training. He obtained his MRCP in 2011 and has since focused his attention on Gastroenterology & Hepatology.

Over the years, Dr Siah has developed a particular interest in functional gastro-intestinal diseases. His research interest ranges from fundamental patho-physiology to drug treatment of Irritable Bowel Syndrome (IBS). He is a frequent speaker on this topic at public fora and volunteers at IBS patients support group. It is Dr Siah’s hope that patient awareness can be raised through such events and timely help would be sought.

Awards and Honours

ROME Foundation Research Award 2014
Young Investigator Award at 1st Federation of Neurogastroenterology and Motility Meeting, Guangzhou, 2014
National Medical Research Council Fellowship Award 2014
Japanese Society of Gastroenterology Research Fellowship Award 2014
SPARKS NUHS Patient Service Award 2013
Groomer and NUHS Patient Care Excellence Award 2013
Best Poster Silver Award Quality, Health Services Research at Singapore Health & Biomedical Congress 2013
Young Investigator Award at 3rd Asian Neurogastroenterology and Motility Meeting, Penang, Malaysia 2013
Merit Award Pitch-For-Fund NUHS 2012
Young Investigator Award at 2nd Asian Neurogastroenterology and Motility Meeting, Beijing, China 2011
Young Investigator Award at 1st Asian Neurogastroenterology and Motility Meeting, Seoul, Korea 2009

Research and Publications

  1. Siah KTH, Wong RKM, Ho KY. Melatonin for the Treatment of IBS. World J Gastroenterol. 2014 Mar 14;20(10):2492-2498. Review. PMID: 24627586
  2. Siah KTH, Gwee KA, William E. Whitehead, Minhu Chen, Xiao-hua Hou, Nitesh Pratap, Uday C. Ghoshal, Ari F. Syam, and others. Tu1190 Prevalence of Esophageal Symptoms by ROME III Criteria in Asia and Their Association With Other Functional Gastrointestinal Disorders. Gastroenterology, Vol. 144, Issue 5, S-785–S-786.
  3. Gwee KA, Siah KTH, Wong RK, Wee S, Wong ML, Png DJ. Prevalence of disturbed bowel functions and its association with disturbed bladder and sexual functions in the male population.J Gastroenterol Hepatol. 2012 Nov;27(11):1738-44.
  4. Wei Lu, Kok-Ann Gwee, Siah KTH, Jin Yong Kang, Rumin Lee and Cecilia Cheng Lai Ngan. Prevalence of Anti-deamidated Gliadin Peptide Antibodies in Asian Patients With Irritable Bowel Syndrome. J Neurogastroenterol Motil, Vol. 20 No. 2 April, 2014
  5. Lee YK, Low KY, Siah KTH, Drummond LM, Gwee KA. Kiwifruit (Actinidia deliciosa) changes intestinal microbial profile, Microb Ecol Health Dis. 2012 Jun 18;23.
  6. Xi Yang, Ranieri Yung Ing Koh, Benedict Tiong Chee Tay, Kewin Tien Ho Siah, Yoel Donchin, Taezoon Park. Clinical shift handoffs in Singapore: A three-phase prospective. Proceedings of the Human Factors and Ergonomics Society Annual Meeting September 2011 vol. 55 no. 1 778-782.


Appt Tel:
+65 6772 4361