Areas of Expertise

Doctor Dunn treats the following conditions:

• Bowel disease
• Inflammatory bowel disease (IBD)
• Crohn’s Disease
• Ulcerative colitis
• Colon polyps
• Lynch Syndrome
• Diarrhoea
• Abdominal pain
• Indigestion
• Dyspepsia
• Constipation
• Reflux
• Barrett’s Oesophagus
• HALO Radiofrequency Ablation
• Endoscopic mucosal resection
• Inlet patch
• Globus
• Eosinophilic Oesophagitis

Doctor Dunn is a highly-regarded Gastroenterologist with extensive experience in the following procedures:

• High-quality Colonoscopy
• Trans Nasal Endoscopy
• General gastroenterology
• Nutrition

About Dr Jason Dunn

Dr Jason Dunn is a consultant Gastroenterologist at OneWelbeck and St Thomas’ Hospitals NHS Foundation Trust. He studied at GKT medical school, graduating in 2000, and was awarded MRCP (London) in 2005. He was appointed as a consultant in 2012.

Dr Dunn is proficient in Endoscopic Therapy including Endoscopic Mucosal Resection (EMR), and Radiofrequency Ablation (RFA) techniques. Additionally, Dr Dunn has written guidelines for the management of Barrett’s oesophagus for the South East London Cancer Network and Kent & Medway Cancer Network.

Dr Dunn is the Research lead for the Oesophageal section of the British Society of Gastroenterology. He is an advisor to NICE on eosinophilic oesophagitis and Barrett’s oesophagus. Additionally, Dr Dunn is a trustee for Barrett’s Oesophagus UK, and a medical advisor for Action Against Heartburn and Guts UK.

He was awarded a CRUK clinical fellowship at UCL and studied use of optical diagnostics and minimally invasive therapies for the treatment of Barrett’s oesophagus. He gained his PhD in 2011 and has presented his work at national and international meetings. His work on treatment of Barrett’s oesophagus with RFA, and the use of biomarkers to predict cancer progression, has won prizes.

He has published in high impact factor journals and book chapters. He currently holds Honorary Senior Lecturer posts at Kings College London and previously at Oslo University in the Institute of Medical Informatics. He has been awarded a grant for a trial of RFA vs. Sham for symptomatic cervical inlet patch (Medtronic) and is CI for this study. He is a PI for AspECT, SPIT and HALO RFA registry at GSTT.