Dr Sean Preston, Consultant Gastroenterologist
Dr Sean Preston
Consultant Gastroenterologist
Dr Sean Preston BSc (Hons) PhD MBBS FRCP
Consultant Gastroenterologist
Areas of expertise
- Gastro-oesophageal reflux (heartburn)
- Achalasia
- Barrett’s oesophagus
- Diagnostic and theraputic endoscopy
- Irritable bowel syndrome (IBS)
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About Dr Sean Preston
GMC number: 4230881
Year qualified: 1995
Place of primary qualification: University of London
Areas of expertise
- Achalasia
- Barrett’s oesophagus
- Bloating
- BRAVO pH capsule monitoring
- Coeliac disease
- Colon cancer
- Colonoscopy
- Constipation
- Diagnostic and therapeutic endoscopy
- Diarrhoea
- Endoscopic ultrasound
- Eosinophilic oesophagitis
- Food intolerance
- Gastro-oesophageal reflux disease (GORD) or acid reflux
- General gastroenterology
- Heartburn
- Inflammatory bowel disease
- Irritable bowel syndrome (IBS)
- Oesophageal cancer
- Rectal bleeding
- Small intestinal bacterial overgrowth
Frequently asked questions
What are the common symptoms that your patients tend to present with?
The most common symptoms my patients have are abdominal pain, bloating and heartburn. These can signify serious underlying disease, but can equally be very straightforward problems to solve.
The gastrointestinal tract has the potential to cause many varied symptoms, so it's important to identify the cause as soon as possible.
What are the treatments that you're able to offer your patients?
The treatment is very pathology and patient-specific and it's very important to treat any underlying problems in a holistic manner. These can either be with lifestyle changes, medications, complex endoscopic therapies, dietary manipulation or hypnotherapy. I'm lucky enough to work in a group that can provide all of these.
What are your areas of sub-specialist interest?
My main areas of subspecialist interests are endoscopic, both the diagnosis and treatment of pre-malignant and cancerous pathology in the oesophagus, stomach, pancreas and colon.
Professional memberships




Articles by Dr Sean Preston
Eicosatetraynoic and eicosatriynoic acids, lipoxygenase inhibitors, block meiosis via antioxidant action.
Transport and selective utilization of adenosine as a prosubstrate for luteinizing hormone-sensitive adenylate cyclase in the luteal cell
The antigonadotropic action of prostaglandin F2 alpha is not mediated by elevated cytosolic calcium levels in rat luteal cells.