Dr Siwan Thomas-Gibson

BSc, MBBS, MD, FRCP

Consultant Gastroenterologist and Specialist Endoscopist

Dr Thomas Gibson is without a doubt, one of the most impressive, kind, personable and skilful individuals I have ever met. She listens, explains and performs procedures with such expertise and empathy. Consultations are an absolute pleasure because you are given great opportunity to ask questions, raise concerns and engage fully with your condition. I've never come across this before in medical consultations. I feel incredibly lucky to have met and been treated by Dr Thomas Gibson - I've also been in remission for several years now, essentially since she started treating me (which may be luck, but I don't believe so).

Profile

Dr Siwan Thomas-Gibson is a gastroenterologist, specialist endoscopist and Deputy Director of the Bowel Cancer Screening unit at St Mark’s Hospital London. She is an honorary Senior Lecturer at Imperial College London. 

Since January 2017 she has chaired the UK’s Joint Advisory Group on Gastrointestinal Endoscopy. Her research and clinical interests include improving quality and safety of colonoscopy; improving endoscopic training and assessment; UC surveillance; the management of early colorectal neoplasia and management of GI consequences of cancer treatment. 

She continues to work on the development of polypectomy assessment currently running an International study on polypectomy learning curves. She was one of the founders of the British Society Gastroenterology SWIG mentorship project- Supporting Women In Gastroenterology. 

 She is frequently faculty on national and international meetings, speaking, performing live endoscopy and teaching hands on live endoscopy on many up-skilling courses in the UK and abroad. She has over 60 publications in peer reviewed papers as well as authorship on several books.

Specialties

Colonoscopy
Bowel cancer screening and screening in high risk conditions
Therapeutic colonoscopy: EMR, polypectomy, Dilatation and colonic stenting
Ulcerative colitis: clinical management and surveillance of dysplasia
Managing the gastrointestinal consequences of cancer treatment Inflammatory Bowel Disease

Recent publications

An International survey of polypectomy training and assessment. K. Patel, A. Rajendran, O. Faiz, M.D. Rutter, C. Rutter on behalf of BSG Trainees Section, R. Jover, I. Koutroubakis, W. Januszewicz, M. Ferlitsch , E. Dekker , D. MacIntosh , S. C. Ng, T. Kitiyakara, H. Pohl , S. Thomas-Gibson. Endoscopy International Open. 2017  05: E190-E197 

Factors defining expertise in screening colonoscopy. Patel K, Pinto A, Faiz O, Rutter, MD, Thomas-Gibson S. Endoscopy International Open. 05  E931-E938 DOI https://doi.org/10.1055/s-0043-113561 

A prospective study of patient safety incidents in gastrointestinal endoscopy. Matharoo M, Haycock A, Sevdalis N, Thomas-Gibson S. Endosc Int Open. 2017 Jan;5(1):E83-E89. doi: 10.1055/s-0042-117219. PMID: 28191498

Report of the Association of coloproctology of Great Britain and Ireland/British Society Gastroenterology Colorectal Polyp Working Group: The development of  complex colorectal polyp minimum dataset Chattree A, Barbour JA, Thomas-Gibson S, Bhandari P, Saunders BP, Veitch AM, Anderson J, Rembacken BJ, Loughrey MB, Pullan R, Garrett WV, Lewis G, Dolwani S, Rutter MD. Colorectal Dis. 2017 Jan;19(1):67-75. doi: 10.1111/codi.13504. PMID: 27610599

The Impact of the Introduction of Formalised Polypectomy Assessment on Training in the United Kingdom. Patel K; Faiz O, Rutter M, Dunckley P, Thomas-Gibson S Frontline Gastroenterology 2017 8: 2 http://dx.doi.org/10.1136/flgastro-2016-100718

Professional memberships

Governance

I am registered with all major insurers and am fee assured.

A 30-minute new outpatient appointment is charged at £275.

A 15 minute follow up appointment is charged at £195.

Longer appointments for complex cases or second opinions are available.

I have full medical & professional indemnity with MDDUS. GMC number 3614916

Dr Thomas Gibson is without a doubt, one of the most impressive, kind, personable and skilful individuals I have ever met. She listens, explains and performs procedures with such expertise and empathy. Consultations are an absolute pleasure because you are given great opportunity to ask questions, raise concerns and engage fully with your condition. I've never come across this before in medical consultations. I feel incredibly lucky to have met and been treated by Dr Thomas Gibson - I've also been in remission for several years now, essentially since she started treating me (which may be luck, but I don't believe so).

Patient

“We create amazing Webflow templates for creative people all around the world and help brands stand out”

Matthew Russell

“We create amazing Webflow templates for creative people all around the world and help brands stand out”

Lizzie Moore

Get in Touch

Secretary

Karen Chambers