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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
  • Irritable bowel syndrome (IBS)
  • 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

Career Highlights

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 was recently 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.