Bariatric Surgery Treatment & Management MDA Webinar Series

Recorded Webinar

Download PPT

Peri-Operative Nutrition Management  (Click Here)

Speakers Profile

Assoc. Prof. Dato’ Nik Ritza Kosai bin Nik Mahmood
Consultant Upper GI Bariatric & Metabolic Surgeon
Universiti Kebangsaan Malaysia Medical Centre

Associate Professor Dato’ Dr Nik Ritza Kosai Nik Mahmood , graduated from University of St Andrews,Scotland with Bsc Med Sci followed with MBChB from Manchester university. He underwent Basic and higher Specialist Surgical training in the North West of England Deanery rotation leading to FRCS Gen Surgery and CCST. He joined Universiti Kebangsaan Malaysia in January 2011 and is currently the Head of Upper Gastrointestinal, Metabolic and Bariatric Surgical unit at the Faculty of Medicine. Since commencing his post in 2011, he has established the UGI and Bariatrics unit at Hospital Canselor Tuanku Muhriz , PPUKM making it the country pioneer and the main referral centre for treatment for Upper Gastrointestinal Cancers and Obesity Disorder. This centre has since performed more than 1500 Bariatric and Metabolic surgeries, the most in Malaysia.  He is currently very active in research in particular obesity, Upper GI cancers and Helicobacter pylori including international collaborations. He has published over 100 peer reviewed publications, book chapters, expert opinion catalogues, magazines and newspapers articles. He is currently the examiner for the MRCS (Royal College of Surgeons of Edinburgh), Conjoint Master of Surgery and External Examiner at Universiti Sains Malaysia. He sits in the committee for the Subspeciality Upper GI training in Malaysia and the national Guidelines for Bariatric surgery and the National Obesity Guidelines. He is currently the president of the Malaysian Metabolic and Bariatric Surgical Society, Vice president of Malaysian Upper GI Society and President of Malaysia chapter of IFSO (International Federation of Surgery for Obesity). As being one of the key opinion leaders for his field, he has been invited as a speaker and faculty at numerous national and international conferences and surgical workshops. He has also appeared on numerous occasions on radio and television shows.

Izabela Kerner​
Principal Dietitian
Woodlands Health Campus

Izabela is a clinical dietitian with over 17 years of experience in the field of nutrition and dietetics. After obtaining her Master Degree in Nutrition and Dietetics from the University of Sydney, Australia she has worked as a clinical dietitian in Australia, Singapore and the UK. She is an Accredited Practicing Dietitian of Australia (APD) and Accredited Dietitian of Singapore (ADS) and a Certified Nutrition Support Clinician (USA) since 2009. 

In Singapore, Izabela worked previously at the Singapore General Hospital (SGH) for over 4 years and in Changi General Hospital (CGH) for almost 8 years. In her position at CGH she provided nutrition therapy to patients in both the medical and surgical Intensive Care Units. Izabela left for private practice in 2016, where she works alongside surgeons to assist in the peri-operative nutrition management of bariatric patients. 

Izabela is also an associate lecturer at SIM University teaching nutrition related courses since 2014 and a President of the Singapore Nutrition and Dietetic Association (SNDA) since 2018. She has recently joined Woodlands Health Campus (WHC) and is now the Acting Head of the Department of Nutrition and Dietetics, setting up dietetic services for the hospital.