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Chairpersons of Departments

Chairpersons of Departments
Professor LAU Yun Wong, James

Professor LAU Yun Wong, James

Chairman, Department of Surgery

Yao Ling Sun Professor of Surgery

School / Department / Institute / Centre / Unit
Department of Surgery

Therapeutic Endoscopy, Vascular Surgery
1987       MBBS (Hons) (UNSW)
2001       MD (CUHK)
Professional Qualifications
1991       FRCS (Edin)
1993       FCSHK
1995       FHKAM
2014       FRCS (Glasg)

Research Interests
Peptic ulcer bleeding, endoscopic therapy

Additional info
Head, Division of Surgery, Graduate School, The Chinese University of Hong Kong
Honorary Director, Endoscopy Centre, New Territories East Cluster, Hospital Authority
Honorary Consultant Surgeon, New Territories East Cluster, Hospital Authority

Selected Publications


  1. Lau JY, Pittayanon R, Kwek A, Tang RS, Chan H, Rerknimitr R, Lee J, et al. Comparison of a hemostatic powder and standard treatment in the control of active bleeding from upper nonvariceal lesions: a multicenter, noninferiority, randomized trial. Ann Intern Med. 2022;175(2):171- 178.  
  2. Lau JY, Yu YY, Tang RSY, Chan HCH, Yip HC, Chan S, et al. Timing of endoscopy for acute upper gastrointestinal endoscopy. N Engl J Med. 2020;382(14):1299-1308. 
  3. Lau JY, Pittayanon R, Wong KT, Pinjaroen N, Chiu PWY, Rerknimitr R, et al. Prophylactic angiographic embolisation after endoscopic control of bleeding to high-risk peptic ulcers: a randomised controlled trial. Gut 2019;68(5):796-803.
  4. Lau JY, Barkun A, Fan DM, Kuipers EJ, Yang YS, Chan FKL. Challenges in the management of acute peptic ulcer bleeding. Lancet 2013;381(9882):2033-43. 
  5. Lau JY, Leung WK, Wu JC, Chan FK, Wong VW, Chiu PW, et al. Omeprazole before endoscopy in patients with gastrointestinal bleeding. N Engl J Med. 2007 Apr 19;356(16):1631-40.
  6. Lau JY, Leow CK, Fung TM, Suen BY, Yu LM, Lai PB, et al. Cholecystectomy or gallbladder in situ after endoscopic sphincterotomy and bile duct stone removal in Chinese patients. Gastroenterology 2006 Jan;130(1):96-103.
  7. Lau JY, Sung JJ, Lee KK, Yung MY, Wong SK, Wu JC, et al. Effect of intravenous omeprazole on recurrent bleeding after endoscopic treatment of bleeding peptic ulcers. N Engl J Med. 2000 Aug 3;343(5):310-6.
  8. Lau JY, Sung JJ, Lam YH, Chan AC, Ng EK, Lee DW, et al. Endoscopic retreatment compared with surgery in patients with recurrent bleeding after initial endoscopic control of bleeding ulcers. N Engl J Med. 1999 Mar 11;340(10):751-6.
  9. Lau JY, Sung JJ, Chan AC, Lai GW, Lau JT, Ng EK, Chung SC, Li AK. Stigmata of hemorrhage in bleeding peptic ulcers: an interobserver agreement study among international experts. Gastrointest Endosc. 1997 Jul;46(1):33-6. 
  10. Lau JY, Ip SM, Chung SCS, Leung JWC, Ling TKW, Yung MY, et al. Endoscopic drainage aborts endotoxaemia in acute cholangitis. Brit J Surg. 1996;83(2):181-184.