- Fee assured
- Verified this account
- Inflammatory bowel disease
Dr Hayat grew up in Buckinghamshire before completing his medical degree at Imperial College School of Medicine. He completed his specialist gastroenterology training in London, during which he undertook an MD research degree into the use of advanced diagnostic techniques in upper GI disease presenting his work nationally and internationally and publishing in a number of high impact scientific journals.
Dr Hayat runs a specialist clinic for patients with upper GI problems such as reflux disease and swallowing disorders. He runs the GI physiology lab at St George's Hospital performing high resolution oesophageal manometry and ambulatory impedance-pH monitoring as well as being an experienced JAG accredited endoscopist.
His clinical practice encompasses the diagnosis and management of patients with altered bowel habit including detection and assessment of irritable bowel syndrome, inflammatory bowel disease and gastrointestinal cancer.
Areas of interest
Gastro-oesophageal reflux disease;
Inflammatory Bowel Disease;
Colorectal cancer screening
Current NHS consultant posts held
Consultant Gastroenterologist and Honorary Senior Lecturer
St George's University Hospitals NHS Trust
Gastro-Oesophageal Reflux Disease
Oesophageal Motility Disorders
Distinction Awards for Published Abstracts from the BSG, AGA and UEG on :
'Detection of pepsin in saliva as a biomarker of esophageal sensitivity to reflux'
'Effects of sleeve gastrectomy on gastro-oesophageal reflux and oesophago-gastric motility'
'Novel Techniques for Assessing Oesophago-pharyngeal reflux in patients with hoarseness and suspected LPR'
Eosinophilic oesophagitis. Bancil AS, Hewett R, Hayat JO, Poullis A. Br J Hosp Med (Lond). 2016 Jul;77(7):409-13. doi: 10.12968/hmed.2016.77.7.409. Review.
Effects of eosinophilic oesophagitis on quality of life in an adult UK population: a case control study. Hewett R, Alexakis C, Farmer AD, Ainley J, Chhaya V, Hayat JO, Poullis A, Kang JY.
Dis Esophagus. 2017 Jan 1;30(1):1-7. doi: 10.1111/dote.12524.
Contrasting liver function test patterns in obstructive jaundice due to biliary strictures and stones. Hayat JO, Loew CJ, Asrress KN, McIntyre AS, and Gorard DA. QJM, January 1, 2005; 98(1): 35 – 40
Cost-effectiveness of thiopurine methyltransferase genotype screening in IBD. Kitiyakara T, Hayat J, McIntyre AS. Aliment Pharmacol Ther. 2005 Mar 15;21(6):790-1
Calcium channel TRPV6 expression in human duodenum: different relationships to the vitamin D system and aging in men and women. Walters JRF, Chavele K, Taylor V, Balesaria S,. Berry JL, Khair U, Barley NF, van Heel DA, Field J, Hayat JO, Bhattacharjee A,.Jeffrey R, Poulsom R. J Bone Miner Res. 2006 Nov ;21 (11):1770-7
Paediatric endoscopy performed by adult service gastroenterologists. Hayat JO, Sirohi R, Gorard DA. Eur J Gastroenterol Hepatol. 2008 Jul ;20 (7):648-5
Review of SeCHAT use at St.George's Hospital 2005-2010:An Under-utilised Investigation? Holmes R, Hayat JO, A. Irwin A, Heenan S, Kang J-Y, Poullis A Gastroenterology Today 2012:22(1):13-15
Clinical Update:Eosinophilic Oesophagitis. Hayat JO,Alexandropoulou K, Poullis A, Kang JY. Br J Gen Pract 2012 Sep;62(602):499-500
Chronic cough and vocal cord dysfunction: the role of GER. Hayat JO, Yazaki E, D Sifrim D. Gastroesophageal Reflux and the Lung. Respiratory Medicine Volume 2, 2013, pp 95-117
Objective Detection of Esophagopharyngeal Reflux in Patients With Hoarseness and Endoscopic Signs of Laryngeal Inflammation. Hayat JO, Yazaki E, Moore AT, Hicklin L, Dettmar P, Kang JY, Sifrim D. J Clin Gastroenterol. 2013 Oct 28.
The effects of sleeve gastectomy on gastro-esophageal reflux and gastro-esophageal motility Expert Rev. Gastroenterol. Hepatol. 8(4), 000–000 (2014). Hayat JO, Wan A.
Pepsin in Saliva for the diagnosis of gastro-oesophageal reflux disease. Hayat JO, Gabieta-Somnez S, Yazaki E, Kang J-Y,Woodcock A, Dettmar P, Mabary J, Knowles C, Sifrim D. Gut doi:10.1136/gutjnl-2014-307049
Courses offered to GPs
Gastro-Oesophageal Reflux Disease
Swallowing Disorders/Eosinophilic Oesophagitis
Irritable Bowel Syndrome
- MB BS (London) Imperial College School of Medicine 2002
- BSc Imperial College 2001
- MRCP (UK) Royal College of Physicians 2006
- MD (Res) University of London 2014
Reference number 6057427
Details of entry to specialist register
- Jamal Hayat, 2014
Affiliations / memberships
British Society of Gastroenterology
British Medical Association
American Gastroenterological Association
Medical Defense Union
European Society of Eosinophilic Oesophagitis
Post treatment communication
Following treatment of a Bupa member, I will communicate with GPs in line with Department of Health, GMC and appropriate professional bodies guidelines.