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Asst Prof Kim Guowei

  • Consultant, Division of General Surgery (Upper Gastrointestinal Surgery), Department of Surgery, National University Hospital
  • Consultant, Division of Surgical Oncology, National University Cancer Institute, Singapore
  • Consultant, Division of General Surgery (Upper Gastrointestinal Surgery), Department of Surgery, Alexandra Hospital
Surgery, Surgical Oncology
General Surgery, Surgical Oncology (Upper Gastrointestinal Surgery), Upper Gastrointestinal Surgery
Special Interests:
Upper gastrointestinal surgery (including esophageal and gastric cancer), Metabolic and bariatric surgery, Minimally invasive surgery, Diagnostic and therapeutic endoscopy


Asst Prof Kim Guowei graduated from National University of Singapore (NUS) in 2007. He completed surgical residency at the National University Hospital in 2016, serving as Chief Resident. He spent a year at Seoul National University Bundang Hospital, Korea, in 2019, for his clinical and research fellowship, mastering laparoscopic and robotic surgery for gastric cancer. With a keen interest in undergraduate and postgraduate teaching and education, he served as a Clinical Lecturer for the Department of Surgery, Yong Loo Lin School of Medicine, NUS, from 2014 to 2021, before being appointed as an Assistant Professor. He is also the Associate Program Director of the NUHS General Surgery Residency Program, grooming the next generation of surgeons. He was awarded the NUS "Dean's Excellence Award" for teaching and education in 2017 and the "NUS Medicine Fortitude Award" in 2020 for educational contributions during the COVID crisis. He has authored more than 30 papers and has given multiple presentations, including presenting at Obesity Week/ASMBS 2014, during which he received the "Top 15 posters" award. He was also awarded the "Best Poster Award" at the 5th NCIS Annual Research Meeting in 2018 and the "Best Oral Presentation" award at the 29th Congress of the Korean Society of Surgical Metabolism and Nutrition in 2019. He has also served as an instructor at endoscopic and surgical workshops locally as well as in Malaysia and Bangladesh. He is an active reviewer for several journals including Annals of Surgical Oncology and Obesity Surgery, and is a member of the Singapore Medical Association (SMA), Endoscopic and Laparoscopic Surgeons of Asia Society (ELSA). He also serves in the EXCO for the Obesity and Metabolic Surgery Society of Singapore (OMSSS) and is the national co-ordinator for The Upper Gastrointestinal Surgeons Society (TUGS).

Journals & Publications

  1. Association of metabolic-bariatric surgery with long-term survival in adults with and without diabetes: a one-stage meta-analysis of matched cohort and prospective controlled studies with 174 772 participants. Lancet. 2021 May 15;397(10287):1830-1841. PMID: 33965067
  2. Admission discipline and timing of admission may influence outcomes for gastrointestinal bleeding patients. ANZ J Surg. 2021 Sep;91(9):1832-1840. doi: 10.1111/ans.16873. PMID: 33982881
  3. Gastro-esophageal reflux disease (GERD) after peroral endoscopic myotomy (POEM). Surg Endosc. 2021 Jul 29. doi: 10.1007/s00464-021-08644-2. Online ahead of print. PMID: 34327547
  4. 30-Day morbidity and mortality of bariatric metabolic surgery in adolescence during the COVID-19 pandemic - The GENEVA study. Pediatr Obes. 2021 Dec;16(12):e12832. doi: 10.1111/ijpo.12832. Epub 2021 Jul 8. PMID: 34240553
  5. 30-Day Morbidity and Mortality of Bariatric Surgery During the COVID-19 Pandemic: a Multinational Cohort Study of 7704 Patients from 42 Countries. Obes Surg. 2021 Oct;31(10):4272-4288. doi: 10.1007/s11695-021-05493-9. Epub 2021 Jul 30. PMID: 34328624
  6. Induction of gastric cancer by successive oncogenic activation in the corpus. Gastroenterology. 2021 Dec;161(6):1907-1923.e26. doi: 10.1053/j.gastro.2021.08.013. Epub 2021 Aug 12. PMID: 34391772
  7. Structured Training for Laparoscopic Appendectomy for Residents (STAR Trial)-A Randomized Pilot Study. J Surg Res. 2021 Dec;268:363-370. doi: 10.1016/j.jss.2021.06.073. Epub 2021 Aug 14. PMID: 34399358
  8. Single-cell atlas of lineage states, tumor microenvironment and subtype-specific expression programs in gastric cancer. Cancer Discov. 2021 Oct 12:candisc.0683.2021. doi: 10.1158/2159-8290.CD-21-0683. Online ahead of print. PMID: 34642171
  9. Coronavirus viability in surgical plume and methods for safe disposal: a preclinical model. Br J Surg. 2021 Dec 17;109(1):15-20. doi: 10.1093/bjs/znab385. PMID: 34792098
  10. 30-day morbidity and mortality of sleeve gastrectomy, Roux-en-Y gastric bypass and one anastomosis gastric bypass: a propensity score-matched analysis of the GENEVA data. Int J Obes (Lond). 2021 Dec 15:1-8. doi: 10.1038/s41366-021-01048-1. PMID: 34912046


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