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| Dr Brian Saunders MD FRCP |
Dr. Brian Saunders is an internationally-renowned gastrointestinal endoscopist and luminal gastroenterologist. His main clinical interests are the diagnosis and prevention of intestinal diseases through endoscopy (colonoscopy, gastroscopy, capsule enteroscopy, push enteroscopy) and the management of inflammatory bowel disease. He has particular expertise in therapeutic endoscopy including polypectomy, endoscopic mucosal resection, stenting, stricture dilatation and thermal ablation of bleeding lesions as well as the screening and surveillance of those at increased risk of colorectal cancer due to a family history, personal history of polyps or longstanding colitis.
Dr. Saunders was appointed to the consultant staff at St. Mark's Hospital in 1997 and became Chief of Endoscopy in 2003. In the same year he led the successful St. Mark's bid to become a National Endoscopy Training Centre and he chairs a National workgroup looking at quality assurance and performance assessment for colonoscopy. As Director of the Kennedy-Leigh Academic Endoscopy Unit at St. Mark's he supervises a team of 12 research clinicians working on new techniques to improve the management of gastrointestinal diseases through the use of flexible endoscopes. In 2005 he also became Dean of the Academic Institute at St. Mark's Hospital and is responsible for post-graduate education within the hospital and for the organisation each year of a major international conference on luminal gastroenterology.
Dr. Saunders qualified from
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| Dr Chris Fraser MB ChB, MD, MRCP |
Dr Fraser is a nationally-renowned gastrointestinal endoscopist and luminal gastroenterologist with a wide spectrum of expertise. His specialist interests include the non-surgical treatment and prevention of gastro-oesophageal reflux and dyspepsia including endoscopic anti-reflux procedures, medical management of inflammatory bowel disease and the investigation and treatment of disorders affecting the small intestine (such as Crohn's disease, polyps and tumours, strictures and bleeding) with particular emphasis on the role of capsule endoscopy and double balloon enteroscopy. Dr Fraser is also a nationally recognised expert therapeutic colonoscopist, with an interest in colorectal cancer screening and surveillance of high risk patient groups. He provides regular teaching and live demonstration of colonoscopy in hospitals throughout the U.K.
Dr Fraser has received multiple national and international scholarships and prizes for his work, including three prestigious 'Young Investigator' awards, and has authored numerous scientific papers, book chapters, editorials and reviews. He has lectured in Europe and the Middle East and is actively involved in research, particularly with capsule endoscopy, double balloon enteroscopy and endoscopic anti-reflux therapy. He is a member of the British Society of Gastroenterology and the American Society of Gastrointestinal Endoscopy. Dr Fraser successfully led the St Mark's Hospital bid to become one of the first bowel cancer screening centres for the National Bowel Cancer Screening Programme which begins later this year.
Dr Fraser qualified from Edinburgh University in 1992 and trained in Gastroenterology in Aberdeen, Manchester and London. He achieved MRCP in 1996 and was awarded an MD from the University of Manchester in 2004 for his thesis which examined the neurophysiologic control of human swallowing. Dr Fraser undertook the 1st Advanced Endoscopy Wolfson Fellowship at St Mark's Hospital in 2003 prior to his appointment to the consultant staff in 2004.
Dr Siwan Thomas-Gibson MD MRCP
Consultant Gastroenterologist and Honorary Senior Lecturer

Dr Siwan Thomas-Gibson MD MRCP
Dr Siwan Thomas-Gibson is a gastrointestinal endoscopist and luminal gastroenterologist. Her specialist interests include the prevention, diagnosis and management of intestinal diseases utilising endoscopy and the management of inflammatory bowel disease. A significant part of her role in the department is devoted to postgraduate education and training of endoscopists. Her work in the area of training in colonoscopy aims to improve the quality and standard of care to all patients undergoing endoscopic examination.
Dr Thomas-Gibson has presented at a number of national and international meetings and was awarded the John of Arderne medal by the Royal Society of Medicine's coloproctology section for her work in 2002. In 2006 she was awarded an MD for her work in 'Improving Training and Assessment in Colonoscopy'. This work has generated a number of scientific papers and book chapters. She is regularly invited to speak on issues concerning the improvement of colonoscopy standards. Since her appointment at St Mark's Hospital she represents the national training centre as endoscopy training lead. She regularly teaches national and international trainees attending endoscopy hands-on, therapeutic and lecture courses. She is actively involved in research and development in endoscopic training. She is a member of the British Society of Gastroenterology. She sits on the UKs Joint Advisory Group for Gastrointestinal Endoscopy.
Dr Thomas-Gibson qualified from
Margaret Vance
Nurse Consultant in Gastroenterology
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| Margaret Vance |