Education Qualifications: MBBS(Spore), FRCSEd (Gen Surg), FAMS (Gen Surg), FACS
Dr Ong is Senior Consultant & Head of Department for Upper Gastrointestinal & Bariatric Surgery. He is a graduate of the Faculty of Medicine, National University of Singapore and is a Fellow of the Royal College of Surgeons of Edinburgh, the Academy of Medicine of Singapore and the American College of Surgeons.
His sub-specialty interests are in Upper Gastrointestinal Surgery, Surgical Oncology, Minimally Invasive Surgery, Gastrointestinal Endoscopy, Surgical Nutrition and Trauma.
Professional Appointments and Committee Memberships:
- Head & Senior Consultant, Department of Upper Gastrointestinal & Bariatric Surgery, Singapore General Hospital
- Member, International Gastric Cancer Association, 1999-current
- Member, Asia-Pacific Hernia Society, 2005-current
- Committee Member, Office of Professional Members , Academy of Medicine Singapore, 2016-current
- Chief of Service, Team 4 (Upper GI Surgery), Department of General Surgery, Singapore General Hospital
- Board Member, MMed (Surgery), Division of Graduate Medical Studies, Yong Loo Ling School of Medicine, NUS
- Censor, Academy of Medicine, Singapore
- Founding Member, Asia Pacific Bariatric Surgery Society
Awards:
- Master Academic Clinician 2024, Duke-NUS Medical School
- GCEO Excellence Award: Outstanding Clinician, 2016
- Outstanding Mentor for General Surgery Residency Programme , 2011
- Heart of Gold Award, Singapore General Hospital (2011)
- Service with A Heart Award, Singapore General Hospital (2007, 2008, 2010)
- Dean’s Award for Teaching Excellence, YLL School of Medicine, NUS (2006/2007)
- HMDP, Fellow, Upper GI Surgery, Princess Alexandra Hospital, University of Queensland, Brisbane, Australia (2002)
- Visiting Fellow in Gastric Surgery, Omiya Medical Center, Jichi Medical School, Saitama, Japan (2006)
- Research Fellow, National Medical Research Council, Singapore (1996)
Leadership positions / roles in Education:
- General Surgery Exam Board, OMA, MOH, 2014-current
- Director of Medical Students Affairs, Surgery Academic Clinical Programme, SingHealth, 2012-2016
- Member, Assessment for Medical Practice Test Design Workgroup (Postgraduate), 2012-2014
- Committee Member, Residency Advisory Committee, MOH, 2011-2018
- Co-Convener, CPX Year 4 (Yearly-Undergrad), Duke-NUS, 2011-2013
- Committee Member, Faculty Teaching Excellence Committee, Duke-NUS GMS, 2011-2012
- Core Physician Faculty Member, General Surgery Residency Programme (SingHealth), 1 Jan 2019-current
Selected Publications:
AZD6244 (ARRY-142886) enhances the therapeutic efficacy of sorafenib in mouse models of gastric cancer. Mol Cancer Ther. 2009 Sep;8(9):2537-45. Yang S, Ngo VC, Lew GB, Chong LW, Lee SS, Ong WJ, Lam WL, Thng CH, Koong HN, Ong HS, Chung A, Chow P, Lee J, Soo KC, Huynh H
Accurate Preoperative Localization of Insulinomas Avoids the Need for Blind Resection and Reoperation: Analysis of a Single Institution Experience with 17 Surgically Treated Tumors over 19 Years. J Gastrointest Surg. 2009 Jun;13(6):1071-7. Goh BK, Ooi LL, Cheow PC, Tan YM, Ong HS, Chung YF, Chow PK, Wong WK, Soo K C
Sorafenib induces growth suppression in mouse models of gastrointestinal stromal tumor. Mol Cancer Ther. 2009 Jan;8(1):152-9. Huynh H, Lee JW, Chow PK, Ngo VC, Lew GB, Lam IW, Ong HS, Chung A, Soo KC.
The distinctive gastric fluid proteome in gastric cancer reveals a multi-biomarker diagnostic profile. BMC Med Genomics. 2008 Oct 25;1(1):54 Kon OL, Yip TT, Ho MF, Chan WH, Wong WK, Tan SY, Ng WH, Kam SY, Eng AK, Ho P Viner R, Ong HS, Kumarasinghe MP.
Critical appraisal of 232 consecutive distal pancreatectomies with emphasis on risk factors, outcome, and management of the postoperative pancreatic fistula: a 21-year experience at a single institution. Arch Surg. 2008 Oct;143(10):956-65. Goh BK, Tan YM, Chung YF, Cheow PC, Ong HS, Chan WH, Chow PK, Soo KC, Wong WK, Ooi LL.
Pancreaticoduodenectomy for locally advanced stomach cancer: preliminary results. ANZ J Surg. 2008 Sep;78(9):767-70. Chan WH, Cheow PC, Chung AY, Ong HS, Koong HN, Wong WK.
Non-neoplastic cystic and cystic-like lesions of the pancreas: may mimic pancreatic cystic neoplasms. ANZ J Surg. 2006 May;76(5):325-31. Goh BK, Tan YM, Chung YF, Chow PK, Ong HS, Lim DT, Wong WK, Ooi LL.
Perforation of the Gastrointestinal Tract Secondary to Ingestion of Foreign Bodies. World J Surg. 2006 Mar;30(3):372-377. Goh BK, Chow PK, Quah HM, Ong HS, Eu KW, Ooi LL, Wong WK.
Intra-abdominal lymphangioma: usefulness of endoscopic ultrasound and laparoscopy in diagnosis.J Gastroenterol Hepatol. 2006 Jan;21(1):340-1. Goh BK, Tan YM, Chan WH, Yap CK, Ong HS, Wong WK.
Endoscopic ultrasound diagnosis and laparoscopic excision of an omental lymphangioma. J Laparoendosc Adv Surg Tech A. 2005 Dec;15(6):630-3. Goh BK, Tan YM, Ong HS, Chan WH, Yap CK, Wong WK.
Prognostic significance of peritoneal lavage cytology in gastric cancer in Singapore. Gastric Cancer. 2005;8(4):228-37. Chuwa EW, Khin LW, Chan WH, Ong HS, Wong WK.
Gastrointestinal stromal tumor involving the second and third portion of the duodenum: treatment by partial duodenectomy and Roux-en-Y duodenojejunostomy.J Surg Oncol. 2005 Sep 15;91(4):273-5. Goh BK, Chow PK, Ong HS, Wong WK.