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Prof Wong Wai Keong from Sengkang General Hospital

Prof Wong Wai Keong

MBBS (S’pore), FRCS (Edin), FAMS (S’pore)

Senior Consultant

Specialty: General Surgery, Upper Gastrointestinal & Bariatric Surgery

Sub-specialties: Gastrointestinal, Laparoscopic & General Surgery, Surgical Oncology

Clinical Appointments

  • Senior Consultant Upper Gastrointestinal & Bariatric Surgery Singapore General HospitalSingapore General Hospital
  • Chairman Division of Surgery Sengkang General HospitalSengkang General Hospital
  • Senior Consultant Upper Gastrointestinal and Bariatric Service Sengkang General HospitalSengkang General Hospital

Academic Appointments

  • Academic Deputy Vice Chair, Clinical SingHealth Duke-NUS Surgery Academic Clinical Programme


Professor Wong Wai Keong is a General Surgeon with a special interest in Upper Gastro-intestinal Surgery, Laparoscopic Surgery and Therapeutic Endoscopy. In Upper GI Surgery, he specialises in Stomach Cancer and Oesophageal Cancer as well as Laparoscopic GI Surgery.

Prof Wong graduated from Medical Faculty (MBBS), National University of Singapore in 1984. He subsequently obtained his Fellowship in Surgery (FRCS) from Royal College of Edinburgh, UK in 1990 and became a Member of Fellow of Academy of Medicine (FAMS), Singapore in 1996.

Prof Wong subsequently went to Japan, England and Hong Kong to undergo training in Upper GI Surgery and Endoscopy.


  • MBBS (S’pore)
  • FRCS (Edin)
  • FAMS (S’pore)

Professional Appointments and Committee Memberships

  • Clinical Professor, NUS Yong Loo Lin School of Medicine
  • Member, Joint Committee on Specialist Training
  • Member, Training and Assessment Standards Committee, MOH
  • Examiner, Final MBBS (NUS) Examination and Duke-NUS
  • Examiner, Post-Graduate Examination (Family Medicine, MRCS and FRCS)
  • SMJ Editorial Board
  • Immediate past Head of Department of General Surgery, Singapore General Hospital
  • Chairman (Designate) Division of Surgery, Sengkang General Hospital
  • Vice Chair for Education of Surgery Academic Clinical Programme in SingHealth
  • Director of the Basic Surgical Skill Course in the Hospital
  • Standing Committee for Specialist Training and Examination (Academy of Medicine, Singapore)
  • Outram Campus Emergency Planning Committee
  • Joint Committee on Specialist Training (JCST) Site Accreditation Team
  • Clinical Quality Officer


  • National Long Service Award
  • SingHealth Quality Service Award (Gold and Star)
  • SingHealth GCEO Excellence Awards (Outstanding Clinician)

Research Interests


  • The effect of recombinant growth hormone on nitrogen balance in malnourished patients after major abdominal surgery. W K Wong, K C Soo, R Nambiar, Y S Tan, S L Yu, I K Tan. The Australian and New Zealand Journal of Surgery 1995; 65: 109-113.
  • Early postoperative plasma calcium concentration as a predictor of the need for calcium supplement after parathyroidectomy. W K Wong, N A C S Wong, J R Farndon. Br J Surg 1996; 83: 532-534.
  • Comparative study of manual suturing and mechanical stapling in abdominal oesophageal anastomosis. W K Wong, R Nambiar. SGH Proceedings 1995; 4: 2-4.
  • Extended resection of locally advanced (T4) stomach cancer. WS Yong, WK Wong, KC Soo. Ann Acad Med Singapore 2000; 29:723-6.
  • The Current Status of Oesophageal Cancer Management. W K Wong, Chan H S. SGH Proceedings 2001; 9(3): 202-206.
  • Concurrent Chemoradiation followed by Surgery in locally advanced squamous cell carcinoma of the Oesophagus: A Single Centre Experience. Wong NS, Foo KF, Poon D, Leong SS, Wong WK, Chan HS, Soo KC, Yap SP, Cheung YB, Wee J, Tan EH. Ann Acad Med Singapore 2005 June; 34(5): 369-75.
  • Intra-abdominal Schwannomas: a single institution experience. J gastrointest Surg 2008 April;12(4):756-60. Goh BK, Chow PK, Kesavan S, Yap WM, Ong HS, Song IC, Eu KW, Wong WK.
  • How Useful Are Clinical, Biochemical and Cross-sectional Imaging Features in Predicting Potentially Malignant or Malignant Cystic Lesions of the Pancreas? Results from a Single Institution Experience with 220 Surgically Treated Patients. J Am Coll Surg 2008 Jan:206(1):17-27. Goh BK, Tan YM, Thng CH, Cheow PC, Chung AY, Chow PK, Wong WK, Ooi LL.
  • Outcome after Surgical Treatment of Suspected Gastrointestinal Stromal Tumors Involving the Duodenum: Is limited Resection appropriate? J Surg Oncol 2007 Dec 28;97(5):388-391. Goh BK, Chow PK, Kesavan S, Yap WM, Wong WK.
  • Outcome of Distal Pancreatectomy for Pancreatic Adenocarcinoma. Dig Surg 2008 Feb 21;25(1):32-38. Goh BK, Tan YM, Cheow PC, Chung AY, Chow PK, Wong WK, Ooi LL.
  • Which is the Optimal Risk Stratification System for Surgically treated Localised Primary GIST? Comparison of Three Contemporary Prognostic Criteria in 171 Tumors and a Proposal for a Modified Armed Forces Institute of Pathology Risk Criteria. Ann Surg Oncol 2008 Aug ;15(8) : 2153-63. BKP Goh, PKH Chow, WM Yap, SM Kesavan, IC Song, PG Paul, BS Ooi, YFA Chung, WK Wong.
  • 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 AY, Cheow PC, Ong HS, Chan WH, Chow PK, Soo KC, Wong WK, Ooi LL.
  • The distinctive gastric fluid proteome in gastric cancer reveals a multi-biomarker diagnostic profile. BMC Med Genomics. 2008 Oct 25;1: 54. Kon OL, Yip TT, Ho MF, Chan WH, Wong WK, Tan SY, Ng WH, Kam SY, Eng AKh, Ho P, Viner R, Ong HS, Kumarasinghe MP.
  • Outcome after Curative Resection of Large (>/=10cm) Gastric Gastrointestinal Stromal Tumors: How Frequent is the Adjacent Involvement and Is Concomitant Distal Pancreatectomy Necessary? Goh BK, Chow PK, Kesavan SM, Yap WM, Chung YF, Wong WK. J Gastrointest Surg. 2010 Jan.
  • Randomised controlled trial of standard versus high-dose intravenous omeprazole after endoscopic therapy in high-risk patients with acute peptic ulcer bleeding. Chan WH, Khin LW, Chung YF, Goh YC, Ong HS, Wong WK. Br J Surg. 2011 Feb 8.
  • Intrinsic Subtypes of Gastric Cancer, Based on Gene Expression Pattern, Predict Survival and Respond Differently to Chemotherapy. Tan IB, Ivanova T, Lim KH, Ong CW, Deng N, Lee J, Tan SH, Wu J, Lee MH, Ooi CH, Rha SY, Wong WK, Boussioutas A, Yeoh KG, So J, Yong WP, Tsuburaya A, Grabsch H, Toh HC, Rozen S, Cheong JH, Noh SH, Wan WK, Ajani JA, Lee JS, Tellez MS, Tan P. Gastroenterology 2011 April 28.
  • Exome sequencing of gastric adenocarcinoma identifies recurrent somatic mutations in cell adhesion and chromatin remodeling genes. Zeng ZJ, Cutcutache I, Poon SL, Zhang SL, McPherson JR, Wong WK, Zhu YJ, Tan P et al Nat Genet 2012 April 8.
  • Guideline on training and credentialing in endoscopic retrograde cholangiopancreatography. Ang TL, Cheng J, Khor JL, Mesenas SJ, Vu KF, Wong WK. Singapore Med J. 2011 Sep;52(9):654-547.
  • Validation of the MSKCC Gastrointestinal Stromal Tumor Nomogram and Comparison with other Prognostication Systems: Single-Institution Experience with 289 Patients. Chok AY, Goh BK, Koh YX, Lye WK, Allen JC Jr, Quek R, Teo MC, Chow PK, Ong HS, Chung AY, Wong WK, Ann Surg Oncol 2015 Oct;22(11):3597-605.
  • Blood neutrophil-to-lymphocyte and platelet-to-lymphocyte ratios are independent prognostic factors for surgically resected gastrointestinal stromal tumors. Goh BK, Chok AY, Allen JC Jr, Quek R, Teo MC, Chow PK, Ong HS, Chung AY, Wong WK. Surgery 2015 Dec10.

Research Trials