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Last updated: 12 Nov 2020
- General cardiology
- Interventional cardiology
Attended the University of Birmingham Medical School, graduating with honours in pre-clinical sciences. Cardiology training at St. Thomas’ Hospital, London and at the University of Oxford.
In 1987 appointed as consultant cardiologist at University College Hospital London.
Founded the Hatter Cardiovascular Institute at UCL in 1990.
Clinical commitments include the provision of cardiology services and interventional treatments, such as angioplasty and stents, to adult patients. Between 1997 and 2001 was Clinical Director of Cardiac Services, at the time UCH purchased the National Heart Hospital in London. The Heart Hospital and UCH regularly are acknowledged to be amongst the top 3 hospitals in the UK and UCL within the top 4 universities in the world.
Developed a dedicated cardiovascular facility for patients with inherited diseases of the blood, specifically thalassaemia, from which researches resulted in the now accepted non-invasive MRI methodology of measuring myocardial iron content, the cMR T2*. These efforts have been credited with helping to change the outlook for thalassaemia, with a recorded large fall in mortality in the last decade. Scientific and clinical cardiovascular advisor to patient groups and international bodies promoting the care of patients with inherited diseases of haemoglobin, (UKTS and TIF).
Established cardiac rehabilitation services at UCH and the Middlesex Hospitals in 1989 and continue to be the consultant lead for the Cardiovascular Health & Rehabilitation Service at UCLH, an acknowledged leader in the field of cardiovascular rehabilitation: pioneering novel self-management programmes for patients with many disparate conditions, who face cardiovascular risks or complications. These include bariatric patients, cancer patients and primary care patients at risk. Previous President of the British Association for Cardiovascular Prevention and Rehabilitation.
Advisor to the Department of Health and Quality of Life of the Republic of Mauritius. Responsible, with colleagues from UK, for writing a national service framework for cardiovascular services and helping organising educational meetings for health professionals in Mauritius. Advisor to the evolving programme of cardiovascular prevention & rehabilitation.
Major contributor to more than 60 articles in medical and scientific journals and contributions made to numerous book chapters, including authorship of the cardiovascular disease chapters of a major English language textbook of medicine.
Areas of interest
General adult cardiology; Cardiac effects of iron overload; Haemoglobinopathies; Interventional cardiology; Cardiovascular effects of cancer
Current NHS consultant posts held
University College London Hospital - Macmillan Cancer Centre , Huntley Street, London WC1E 6AG and University College London Hospital - Hatter Cardiovascular Institute, 67 Chenies Mews, London WC1E 6HX
Cardiovascular effects of inherited diseases of haemoglobin.
Cardiovascular effects of cancer and its treatment.
The "golden stethoscope" - University of Oxford : Given by election by the medical student body, to reward the best clinical teacher.
British Cardiovascular Society Lecture : Cardiology at the Limits 13, 2012: nominated lecturer at this prestigious international medical congress.
(Additional) Languages spoken
Only recent work included:
Walker JM. Thalassaemia major and the heart: a toxic cardiomyopathy tamed? Heart 2013 Jun;99(12):827-34.
Maggio A, Vitrano A, Calvaruso G, et al. Serial echocardiographic left ventricular ejection fraction measurements: a tool for detecting thalassemia major patients at risk of cardiac death. Blood Cells Mol Dis 2013 Apr;50(4):241-6.
Pennell DJ, Udelson JE, Arai AE, et al. Cardiovascular Function and Treatment in beta-Thalassemia Major: A Consensus Statement From the American Heart Association. Circulation 2013 Jul 16;128(3):281-308.
Walker JM, Nair S. Detection of the cardiovascular complications of thalassemia by echocardiography. Ann N Y Acad Sci 2010 Aug;1202:165-72.
Walker JM. The heart in thalassaemia. Eur Heart J 2002 Jan;23(2):102-5.
Editor and clinical lead for writing of Patient Decision Aid on High Cholesterol: commissioned by Dept of Health. Available on:
Courses offered to GPs
As organised by London Medical and HCA via the Harley Street at UCH.
Update seminars to oncology CNS and trainees at Macmillan Cancer Centre UCH.
- BSc Hons University of Birmingham 1972
- MBChB University of Birmingham 1975
- MD University of Birmingham 1984
- FRCP Royal College of Physicians 1991
Reference number 2234618
Professional bodies (positions held - last 3 yrs)
- Treasurer British Association for Cardiovascular Rehabilitation 2000
- President British Association for Cardiovasculr Prevention and Rehabilitation 2003
- Scientific & Medical Advisor Thalassaemia International Federation (WHO NGO) 2014
- Scientific and Medical Advisor United Kingdom Thalassaemia Society 2013
- Founder and Clinical Director Hatter Cardiovascular Institute UCH 1990
- Council Member British Cardiovascular Society 2000
Details of entry to specialist register
- GMC Cardiology & General Medicine, 1986
- Harley Street at UCH
- 14:00 - 17:00
- 020 3447 9376
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.
In the event of an urgent query following treatment, Bupa members should use the following contact details
Tenzin Seldon: 0203 4479376 or 07554 005593