Dr Oliver Segal

Tel: 020 3447 4962
Email: uclh.cardiology@nhs.net

University College Hospital

Cardiology outpatients, Cardiac services

Professional background

Dr. Segal was appointed Consultant Cardiologist & Electrophysiologist at The Heart Hospital, University College London Hospitals in 2008, moving to the Barts Heart Centre, St. Bartholomew’s Hospital in April 2015 when services were transferred. He is lead for education and training in Electrophysiology and Programme Director for Overseas Fellows as well as lead for the Left Atrial Appendage Occlusion Device programme. Dr Segal graduated from King’s College London and King’s College Hospital, London in 1995. He trained in general cardiology at St. Bartholomew’s and The London Chest Hospitals. His specialist postgraduate training in cardiology and electrophysiology & device implantation was undertaken at St. Mary’s, The Heart and St. George’s Hospitals in London. In 2007 he completed a fellowship in pacing & electrophysiology at Prof. George Klein’s world-renowned electrophysiology unit in London, Ontario, Canada. During his training, he undertook a period of research on mapping complex ventricular arrhythmias at The National Heart & Lung Institute, Imperial College, London and was awarded his doctorate (MD) for this work in 2008. He presented part of that research at the 2004 Heart Rhythm Society in San Francisco, USA where he won 1st prize in the Young Investigator Award competition for clinical research. He was made a Fellow of the Heart Rhythm Society and Royal College of Physicians in 2013. He has sat on the BHRS exam setting committee for the last 5 years and is an abstract reviewer for the Heart Rhythm Society Scientific Sessions.

Dr Segal is now lead Electrophysiologist for UCLH and offers weekly outpatient clinics for patients with arrhythmias and cardiac rhythm devices.

Research interests

Dr Segal has research interests in many aspects of arrhythmia management, including atrial fibrillation, catheter ablation and device implantation


Recent publications include:

Betts TR, Leo M, Panikker S, Kanagaratnam P, Koa-Wing M, Davies DW, Hildick-Smith D, Wynne DG, Ormerod O, Segal OR, Chow AW, Todd D, Cabrera Gomez S, Kirkwood GJ, Fox D, Pepper C, Foran J, Wong T. Percutaneous left atrial appendage occlusion using different technologies in the United Kingdom: A multicenter registry. Catheter Cardiovasc Interv. 2016 (in press)

Providência R, Teixeira C, Segal OR, Ullstein A, Elliott P, Lambiase DP. A Call for Joint Informed Consent in Athletes with Inherited Cardiac Conditions. Open Heart 2016 (in press)

Providência R, Boveda S, Defaye P, Segal OR, Algalarrondo V, Sadoul N, Lambiase P, Piot O, Klug D, Perier MC, Bouzeman A, Barra S, Bories MC, Gras D, Fauchier L, Bordachar P, Babuty D, Deharo JC, Leclercq C, Marijon E, DAI-PP Investigators. Outcome of Primary Prevention Implantable Cardioverter Defibrillator Therapy According to New York Heart Association Functional Classification. AM J Cardiol 2016 (in press)

Ganesha Babu, G, Webber M, Providência R, Kumar S, Gopalamurugan AB, Rogers D, Daw H, Ahsan S, Khan F, Chow A, Lowe M, Rowland E, Lambiase P, Segal OR. Ventricular Arrhythmia Burden in Patients with Heart Failure and Cardiac Resynchronization Devices – The Importance of Renal Function. J Cardiovasc Electrophysiol 2016 (in press)

Srinivasan NT, Orini M, Simon RB, Providência R, Khan F, Segal OR, Babu G, Bradley R, Rowland E, Ahsan S, Chow AW, Lowe M, Taggart P, Lambiase P. Ventricular stimulus site influences dispersion of depolarization in the intact human heart. Am J Physiol Heart Circ Physiol 2016 (in press)

Providência R, Elliott P, Patel K, McCready J, Babu G, Srinivasan N, Bronis K, Papageorgiou N, Chow A, Rowland E, Lowe M, Segal OR, Lambiase PD. Catheter ablation for atrial fibrillation in hypertrophic cardiomyopathy: a systematic review and meta-analysis. Heart 2016 (in press)

Providência R, Lambiase PD, Srinivasan N, Ganesh Babu G, Bronis K, Ahsan S, Khan FZ, Chow AW, Rowland E, Lowe M, Segal OR. Is There Still a Role for Complex Fractionated Atrial Electrogram Ablation in Addition to Pulmonary Vein Isolation in Patients With Paroxysmal and Persistent Atrial Fibrillation? Meta-Analysis of 1415 Patients. Circ Arrhythm Electrophysiol. 2015 Oct;8(5):1017-29.

Ezzat VA, Lee VF, Ahsan S, Chow AW, Segal O, Rowland E, Lowe MD, Lambiase PD. A systematic review of ICD complications in randomised controlled trials versus registries: Is our “real-world” data an underestimation? Open Heart 2015;17: e000198

Gopalamurugan AB, Ganesha Babu A, Rogers, DP, Simpson AL, Ahsan Y, Lambiase PD, Chow AW, Lowe MD, Rowland E, Segal OR. Is CRT pro-arrhythmic? A comparative analysis of the occurrence of ventricular arrhythmias between patients implanted with CRTs and ICDs. Frontiers in Physiology (Cardiac Electrophysiology Section) 2014;5:334

GMC/GDC number: 4209250