Chun-Hai Tan

Dr Chun-Hai Tan

Curriculum Vitae

Dr. Chun-Hai Tan

Personal Details

First Name Chun-Hai

Surname Tan

Nationality Malaysian, Singapore Permanent Residence

Contact +65-96649960, chunhaitan@yahoo.com

Current Positions:

  • Departmental Lead - Bariatric & Metabolic Surgery,

Minimally Invasive Upper Gastrointestinal Surgery

Department of General Surgery, Khoo Teck Puat Hospital

  • Director, Integrated Care for Obesity and Diabetes (ICOD), Khoo Teck Puat Hospital
  • Chairman, Nutritional Support Group, Khoo Teck Puat Hospital
  • Secretary, Obesity & Metabolic Surgery Society of Singapore (OMSSS)
  • Core Clinical Faculty Member – National Healthcare Group (NHG) General Surgery

Residency Programme

  • Clinical Lecturer for Yong Loo Lin School of Medicine (YLLSOM), National

University of Singapore (NUS)

  • Core Faculty for Lee Kong Chian School of Medicine, Nanyang Technological

University (NTU)

Academic qualifications

FRCS (Edinburgh) 2015 Royal College of Surgeons Edinburgh

Masters of Medicine (Surgery) 2008 National University of Singapore

MRCS Intercollegiate (Surgery) 2007 Royal College of Surgeons Edinburgh

M.B.B.S. (Melbourne) 2003 University of Melbourne, Australia

Education

2008 National University of Singapore Masters of Medicine (Surgery)

1998-2003 University of Melbourne, Australia M.B.B.S.

1997 Trinity College, Melbourne, Australia Trinity Foundation Programme

1993-1996 The Chinese High School, Singapore ‘O’ Levels

Current Work Experience

Consultant

May 2015 – Current Departmental Lead, General Surgery

Bariatric & Metabolic Surgery, Upper Gastrointestinal Surgery,

Advanced Minimally Invasive Surgery

International Surgical Fellowship

Aug 2016 – Feb 2017 Division of Gastrointestinal Surgery

Department of General Surgery

Seoul National University Bundang Hospital, South Korea

Feb 2016 – Aug 2016 Asia Pacific Endoscopic Bariatric Surgical Centre,

Advanced Laparoscopic Centre

Min Sheng General Hospital, Taoyuan, Taiwan

Membership of Professional Bodies

  • Secretary, Obesity and Metabolic Surgery Society of Singapore (OMSSS)
  • Fellow of Royal College of Surgeons (Edinburgh) - FRCSEd
  • International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO)
  • Singapore Medical Association (SMA)
  • Society for Parenteral and Enteral Nutrition Singapore (SingSPEN)
  • International Hernia Collaboration
  • International Bariatric Club

Administrative and Organisational

  • Departmental Lead - Bariatric & Metabolic Surgery, Minimally Invasive Upper

Gastrointestinal Surgery

Department of General Surgery, Khoo Teck Puat Hospital

  • Director, Integrated Care for Obesity and Diabetes (ICOD), Khoo Teck Puat Hospital
  • Chairman, Nutritional Support Group, Khoo Teck Puat Hospital
  • Secretary, Obesity & Metabolic Surgery Society of Singapore (OMSSS)
  • Core Clinical Faculty Member – National Healthcare Group General Surgery

Residency Programme

  • Collaborator in STAR1 and STAR 2 research
  • RIE2020 NMRC Centre Grant: Obesity-Metabolism and Intervention Cohort Study

(OMICS)

  • Clinical Lecturer for Yong Loo Lin School of Medicine (YLLSOM), National

University of Singapore (NUS)

  • Core Faculty for Lee Kong Chian School of Medicine, Nanyang Technological

University (NTU)

  • M5 Undergraduate Medical coordinator for Department of General Surgery - Yong

Loo Lin School of Medicine (YLLSOM), National University of Singapore (NUS)

Previous Work Experience

Registrar (Advanced Surgical Traineeship in General Surgery) 2010-2015

Various rotations to Khoo Teck Puat hospital (KTPH), National University Hospital (NUH)

and Tan Tock Seng Hospital (TTSH) including:

  • Hepato-Pancreatic-Biliary Surgery and Liver Transplant
  • Vascular Surgery
  • Upper Gastrointestinal and Bariatric Surgery
  • Trauma and General Surgery
  • Colorectal Surgery
  • Endocrine and Breast Surgery

Internship and Medical Officer (Basic Surgical Traineeship in General Surgery) 2004-2009

Various rotations to Singapore General Hospital (SGH), Changi General Hospital (CGH),

National Heart Centre (NHC) and Tan Tock Seng Hospital (TTSH) including:

  • General Surgery
  • Cardiothoracic Surgery
  • Urology
  • Orthopaedic Surgery
  • General Medicine
  • Obstetrics and Gynaecology

Papers Published

  1. CH Tan, N Al-Kalifah, WJ Lee, KH Ser, YC Lee, JC Chen. HSCRP as surrogate

marker in predicting long term effect of bariatric surgery on resolution of non-

alcoholic steatohepatitis. Asian Journal of Surgery (2018).

https://doi.org/10.1016/j.asjsur.2018.04.010

  1. N Al-Khalifah, WJ Lee, CH Tan, KH Ser, JC Chen, CC Wu. 15-year experience of

laparoscopic single anastamosis (mini-)gastric bypass: comparison with other bariatric

procedures. Surg Endosc (2018). https://doi.org/10.1007/s00464-017-6011-1

  1. MW Ong, CH Tan, AKS Cheng. Prevalence and determinants of Vitamin D

Deficiency among the overweight and obese Singaporeans seeking weight

management including Bariatric Surgery: a relationship with bone health. Obes Surg

(2018). https://doi.org/10.1007/s11695-018-3142-y

  1. Choo ZW, Lo ZJ, Tan CH, Punamiya S, Narayanan S. Chimney Stent-Graft Repair for

Concurrent Inferior Mesenteric Artery Aneurysm and Infrarenal Abdominal Aortic

Aneurysm: Case Report. Ann Vasc Surg. 2017 Nov;45:264.e1-264.e4

  1. CH Tan, YS Park, DW Kim, Y Lee, SH Ahn, DJ Park, HH Kim, A Cheng. A safe and

efficacious alternative to Roux-en-Y gastric bypass for the treatment of morbid obesity

and Type 2 Diabetes – One anastomosis / Mini gastric bypass. J Metab Bariatr Surg

2016;(5):45-52

  1. Lee Y, Tan CH, Park DJ. Current Status of intracorporeal gastroduodenostomy and

modified delta-shape anastomosis after distal gastrectomy for gastric cancer. J Vis Surg

2016;2: 158

  1. Tan CH, Chang SY, Cheah YL. Laparoscopic removal of intrahepatic foreign body: a

novel technique for management of an unusual cause of liver abscess – fish bone

migration. J Laparoendosc Ady Surg Tech A. 2016(1): 47-50

8. Yeap SHA, Tan CH, Cheng AK. Failed Seldinger Technique Deployment of SEMS in

stenosing mid-body stomach cancer: Overcoming the problem. Med Rep Case Stud

2016;1: 2

  1. D Yeo, CH Tan, SH Tay, E Lim, A Cheng. Laparoscopic transhiatal repair of

esophageal rupture in Boerhaave Syndrome is a safe and effective treatment. Case

Studies in Surgery 2016;2: 2

  1. Tan CH, Chow PK, Thng CH, Chung AY, Wong WK. Pancreatic Adenocarcinoma

That Mimics Groove Pancreatitis: Case Report of a Diagnostic Dilemma. Dig Dis Sci

2006 Jul:51(7): 1294-6

  1. Tan CH, Lim YJ, Lam KS, SCFE Screw Removal: Overcoming the difficulties and

how to avoid it. Ann Acad Med Singapore 2007; 36(10); 877-8

Awards:

  1. Winner of Best poster award “Single port trans-gastric resection of gastric GIST” in

2nd ASEAN Upper Gastrointestinal Surgical Conference and 6th Malaysian Upper

Gastrointestinal Surgical Society (MUGIS) Conference, Kuala Lumpur, Malaysia 2017

  1. Winner of Best Video Presentation “Revision surgery for weight regain post banded

vertical band gastroplasty” in Asia Pacific Metabolic and Bariatric Surgical Society

Conference, Sabah, 2016

  1. Winner of Best Free Paper presentation “Results and long term outcomes of resolution

of NASH post bariatric surgery” in Asia Pacific Metabolic and Bariatric Surgical

Society conference, Sabah 2016

  1. Winner of Best Poster award: Case series of minimally invasive McKeown

Oesophagectomy in prone position at Minimally Invasive Surgery week, Society of

Laparo-endoscopic Surgeons Annual Meeting and Endo Expo, Boston 2012

Invited Speaker / Chairperson

  • Invited speaker: Complications of Roux-en-Y gastric bypass. Upper GI Surgery

Postgraduate course at National University Healthcare System (NUHS), Singapore 2018

  • Invited speaker: Perioperative Nutrition in Surgical Patients, GIHep Singapore 2018
  • Invited speaker: Randomised Control Trial for not so obese diabetics: Best Medical

Therapy vs RYGB. Chinese Society of Metabolic & Bariatric Surgery (CSMBS),

Guangzhou, China 2017

  • Khoo Teck Puat Hospital, Nutritional workshop, Invited speaker: What is the role of

parenteral nutrition in Surgical Patients, Singapore 2017

  • Invited speaker: The Role of parenteral nutrition in peri-operative period, GIHep Singapore

2017

  • Chairperson for Advanced Laparoscopic Workshop on Upper GI Surgery at National

University Healthcare System (NUHS), Singapore 2017

  • Organiser: General Practitioner (GP) forum: Obesity and Foregut Cancer, at Khoo Teck

Puat hospital, Singapore 2017.

Lecture: Success stories and Explanation of our integrated Bariatric Programme

Lecture: Summarised Video of Laparoscopic D2 Gastrectomy, Types of operation offered

in Khoo Teck Puat Hospital.

  • Invited speaker “Mini Gastric Bypass (SAGB/OAGB). Can it treat T2DM? Is it safe?” at

Obesity-Bariatric-Endocrine-Study of Obesity (OBES) conference, Singapore 2016

  • Chairperson for 1st postgraduate course on Upper Gastrointestinal Surgery: Advances in

Gastric Cancer at National University Healthcare System (NUHS), Singapore 2016

  • Health for Life Weight Management Public Forum “Bariatric Surgery: Is it for me?” Khoo

Teck Puat Hospital, Singapore 2015

  • Core Resuscitative Skills Training Course (CREST) Programme Instructor, Tan Tock Seng

Hospital, Singapore 2014

  • Lecturer for Trauma Orientation Programme Tan Tock Seng Hospital, Singapore 2013
  • GP Forum “Surgery for Morbid Obesity and Metabolic Syndrome” Khoo Teck Puat

Hospital, Singapore 2012

Oral, Video and Poster presentations

  • Change of NAFLD fibrosis score after bariatric surgery and its co-relation to weight loss,

presented at Asia Pacific Metabolic and Bariatric Surgical Society (APMBSS), Tokyo,

Japan 2018

  • Laparoscopic Single port trans-gastric wedge resection of gastric gastrointestinal stromal

tumour. Presented at 2nd ASEAN Upper Gastrointestinal Surgical Conference and 6th

Malaysian Upper Gastrointestinal Surgical Society (MUGIS) Conference, Kuala Lumpur,

Malaysia 2017 [Winner Best Poster Award]

  • Laparoscopic Roux-En-Y fistulo-jejenostomy for leak from sleeve gastrectomy. Presented

at 22nd World Congress, International Federation for the Surgery of Obesity and Metabolic

Disorders (IFSO), London, United Kingdom 2017

  • Metabolic Surgery for Type 2 Diabetes Mellitus in young onset patients. Presented in 11th

International Diabetes Federation (IDF-WPR) 8th Asian Association for the Study of

Diabetes (AASD), Taipei, Taiwan 2016

  • Results and long term outcomes of resolution of NASH post bariatric surgery. Presented in

Asia Pacific Metabolic and Bariatric Surgical Society (APMBSS), Sabah, Malaysia 2016

[Winner of Best Oral Paper]

  • Revision surgery for weight regain post banded vertical band gastroplasty. Presented in

Asia Pacific Metabolic and Bariatric Surgical Society (APMBSS), Sabah, Malaysia 2016

[Winner of Best video presentation]

  • Randomized Control trial for low BMI 27-32 for Type 2 Diabetes for best medical therapy

versus gastric bypass. Presented in World Congress on Interventional Therapies for Type

2 Diabetes (WCITT2D) and Diabetic Surgical Summit –II (DSS), London 2015

  • Bone Health parameters in Obese Singaporeans. Presented at 20th World congress,

International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO),

Vienna, Austria 2015

  • A laparoscopic approach to repair of incarcerated femoral hernia. Oral Video Presentation

at 14th World Congress of Endoscopic Surgery, WCES, Paris 2014

  • Oral Presentation: Chimney stent graft for concurrent infra-renal abdominal aortic

aneurysm and inferior mesenteric artery aneurysm. Presented at 15th Congress of Asian

Society for Vascular Surgery and 9th Asian Venous Forum, Hong Kong 2014

  • Current management and outcomes of gallbladder perforation: A single center of 51

patients. Presented at 11th World Congress of the International Hepato-Pancreato-Biliary

Association (IHPBA), Seoul 2014

  • Successful Laparoscopic Removal of unusual cause of liver abscess: Fish Bone at

12th Asia Pacific Congress of Endoscopic and Laparoscopic Surgery, ELSA Taiwan 2013

  • Video Presentation of Bleeding encountered during laparoscopic de-roofing of large

splenic cyst and the various haemostasis techniques at Annual Combined Surgical Meeting

ACS, Singapore 2013

  • Video Presentation of Colonic perforation from optical port placement and laparoscopic

repair of colonic perforation at Annual Combined Surgical Meeting ACS, Singapore 2013

  • Case series of minimally invasive McKeown Oesophagectomy in prone position at

Minimally Invasive Surgery week, Society of Laparo-endoscopic Surgeons Annual

Meeting and Endo Expo, Boston 2012 [Winner of Best Poster Award]

  • Gallbladder perforations managed successfully without emergency cholecystectomy at 10th

World Congress of the International Hepato-Pancreato-Biliary Association (IHPBA), Paris

2012

  • Case Study: A Novel approach to management of gastrojejenal anastomotic leaks at the

81st Annual Scientific Congress of Royal Australasian College of Surgeons (RACS), Kuala

Lumpur 2012

  • Rare case of late onset afferent loop syndrome post gastrectomy at Singapore Health and

Biomedical Congress (SHBC) 2011, Singapore

  • Video Presentation: Lengthening of common limb post BPD due to severe malnutrition at

10th Asia Pacific Congress of Endoscopic and Laparoscopic Surgery, ELSA 2011,

Singapore

  • Fully minimally invasive oesophagectomy (Thoracoscopic Laparoscopic McKeown) in

prone position at 10th Asia Pacific Congress of Endoscopic and Laparoscopic Surgery,

ELSA 2011, Singapore

  • Negative pre-operative urine culture is a poor predictor of stone culture in PCNL at SGH

18th Annual Scientific Meeting, Singapore

  • Podium Presentation: Negative pre-operative urine culture is a poor predictor of stone

culture in PCNL at Urology Fair 2009, Singapore

  • A retrospective review of stone culture in percutaneous nephrolithotomy at the 26th World

Congress of Endourology & SWL, Shanghai.

List of Conferences Attended

  • 22nd World Congress, International Federation for the Surgery of Obesity and Metabolic

Disorders (IFSO), London, United Kingdom 2017

  • Obesity-Bariatric-Endocrine-Study of Obesity (OBES) conference, Singapore 2016
  • 26th World Congress of the International Association of Surgeons, Gastroenterologist and

Oncologist (IASGO) Seoul, South Korea 2016

  • 11th International Diabetes Federation (IDF-WPR) 8th Asian Association for the Study of

Diabetes (AASD), Taipei, Taiwan 2016

  • 68th Congress of the Korean Surgical Society (KSS), Seoul, South Korea
  • Asia Pacific Metabolic and Bariatric Surgical Society (APMBSS), Sabah, Malaysia 2016
  • World Congress on Interventional Therapies for Type 2 Diabetes (WCITT2D) and Diabetic

Surgical Summit –II (DSS), London 2015

  • 2nd Annual Scientific Meeting of the Obesity and Metabolic Surgery Society of Singapore

(OMSSS), in conjunction with Asia Pacific Metabolic & Obesity Surgery Summit,

Singapore 2015

  • 14th World Congress of Endoscopic Surgery (WCES), Paris 2014
  • Singapore combined Royal Australasian College of Surgeons (RACS) Annual Scientific

Congress (ASC), Singapore 2014

  • 12th Asia-Pacific Congress of Endoscopic and Laparoscopic Surgery, ELSA Taiwan 2013
  • Annual Combined Surgical (ACS) Meeting in conjunction with the ASEAN Federation of

Surgical Colleges, 2nd Summit Meeting, Singapore 2013

  • 7th Singapore Trauma Conference 2013, Tan Tock Seng Hospital, Singapore 2013
  • 1st Annual Combined Surgical Meeting, College of Surgeons, Singapore 2012
  • 10th World Congress of the International Hepato-Pancreato-Biliary Association (IHPBA) ,

Paris 2012

  • Singapore Health and Biomedical Congress (SHBC) Singapore 2011
  • 10th Asia Pacific Congress of Endoscopic and Laparoscopic Surgery, ELSA, Singapore

2011

  • Combined Singapore – United Arab Emirates Updates on Colorectal Cancer &

Gastroenterology, Singapore 2011

  • 4th Singapore Trauma Conference 2010, Tan Tock Seng Hospital, Singapore 2010
  • Asia Pacific VATS (Video Assisted Thoracotomy) Lobectomy Train the trainer

programme, Singapore 2009

  • Urology Fair 2009; Asia Pacific Conference on Minimally invasive Urology & Urological

Diseases, Singapore 2009

  • Asia Pacific Prostate Health Experts’ Forum, Singapore 2009
  • 26th World Congress of Endourology & SWL, Shanghai, 2008
  • Asia Pacific Preceptorship in Urology, Singapore 2008
  • Urology Fair 2008 in conjunction with 1st Asia-Pacific Kidney Cancer Symposium,

Singapore 2008

List of Surgical Courses and Workshops Attended

  • Open disclosure workshop, Singapore 2017
  • 4th European Society for Clinical Nutrition and Metabolism (ESPEN) – Life Long

Learning (LLL) course, Singapore 2017

  • Basic Cardiac Life Support, Singapore 2017
  • Asia Pacific Metabolic & Metabolic Surgery Workshop, Singapore 2015
  • Advanced Trauma Life Support, Singapore 2014 - Nominated for Instructors Course
  • 1st Singapore – Australasian Live Laparoscopic Surgery Symposium and Pre-RACS

Congress Bariatric Surgery Workshop – Faculty, 2014

  • Fundamentals of Critical Care, Singapore 2014
  • Stapled Haemorrhoidectomy workshop, Bangkok 2012
  • Informed Consent Workshop at Khoo Teck Puat Hospital organised by Medical

Protection Society (MPS), Singapore 2012

  • 9th International Workshop on Obesity & Metabolic Surgery at National University

Hospital, Singapore, 2011

  • Single Incision Laparoscopic Surgery Workshop in conjunction with ELSA2011 at

SGH Postgraduate Medical Institute & Animal Skill Laboratory, Singapore 2011

  • Digestive Surgery, 2011 Advanced Courses jointly organized with IASGO at National

University Hospital, Singapore, 2011

  • 12th IATSIC Definitive Surgical Trauma Care Course (DSTC), Tan Tock Seng Hospital,

2011

  • 12th International Workshop on Abdominal Wall Surgery in conjunction with “Asia

Consensus Meeting on Open Inguinal Hernia” at National University Hospital,

Singapore, 2011

  • Endoscopic Submucosal Dissection Workshop in conjunction with Combined

Singapore – United Arab Emirates Updates on Colorectal Cancer & Gastroenterology

at Khoo Teck Puat Hospital, Experimental and Animal Laboratory, Singapore 2011

  • SCRS Endoscopic Submucosal Dissection Workshop at Khoo Teck Puat Hospital,

Experimental and Animal Laboratory, Singapore, 2010

  • Bowel anastamosis and vascular suturing workshop, 2009
  • Vascular Anastamosis Workshop, Singapore 2009
  • Basic Laparoscopic Course organised by Minimally Invasive Surgery Centre (MISC),

National University Hospital (NUH) 2008

  • Advanced Cardiac Life Support, Singapore 2008
  • Basic Ultrasound Skills Workshop, Singapore 2007
  • Central venous line management, Airway management, Singapore 2007
  • Ethicon Basic Suturing Workshop, Singapore May05, Dec 06
  • Basic Surgical Skills and Bowel Anastomosis Workshop, Singapore May05, Dec 06
  • Basic Orthopaedic Skills Course (Plaster & Traction), Singapore 2005
  • FNA Ultrasound Workshop, Singapore 2005
  • Introduction to Laparoscopic Surgery, Singapore 2005