BSc (Hons), MBBS, PGCertMedEd,  MD (Res), FRCP, FHFA

Consultant Cardiologist | Honorary Senior Lecturer

Dr. Shanmugam graduated from King’s College, University of London with a 1st Class BSc honours degree in 1998. He later trained on the South West London Cardiology rotation and completed Specialist Cardiology training in April 2013. He completed an International Fellowship at the National Heart Centre/ Duke-NUS Singapore in Device Therapy and Advanced Cardiac Imaging, before being appointed Consultant Cardiologist in October 2013 at St George’s University Hospital, London.


Secretary: Robert Nichol

Secretary email:

Secretary telephone: 020 8725 1220

Clinical Interests

General Cardiology, Heart failure and Cardiac Imaging (Cardiac Magnetic Resonance Imaging and Echocardiography). He is clinical lead for the optimization and follow up of patients with Cardiac Resynchronisation Therapy and the Cardiac Sarcoid services. He also has a specialist interest in Lifestyle and Nutrition in Cardiovascular Disease Prevention.

Dr. Shanmugam was an integral part of the team that developed and implemented the first national Heart Failure Unit in the UK. The unit opened in 2016, providing specialist nursing, therapist and cardiology care to admitted patients with heart failure. The Heart Failure team has been nominated, at the prestigious 2017 British Medical Journal awards, for ‘cardiology team of the year’.

Research/Education Interests

Dr. Shanmugam is a Honorary Senior Lecturer based in the Molecular and Clinical Sciences Research Institute at St George’s University of London. He has ongoing research interests in Cardiac Sarcoidosis and inflammatory Cardiomyopathies, Cardiac Magnetic Resonance Imaging and Cardiac Device Therapies in Heart Failure. He has also obtained a Postgraduate Certificate in Medical Education at University College London and continues to actively teach at an undergraduate and postgraduate level.

Dr. Shanmugam is the Associate Editor of the European Cardiology Review journal. He is a Fellow and Committee member of the European Heart Failure Association. He is also a member of the Society of Cardiac MRI, British Society for Heart Failure, British Society of Echocardiography and British Society of Lifestyle Medicine


Akhtar Z, Dargan J, Gaze D, Firoozi S, Collinson P, Shanmugam N. False-positive troponin elevation due to an immunoglobulin-G-cardiac troponin T complex: a case report.  Eur Heart J Case Rep. 2020 May 3;4(3):1-5.

Reddi BAJ, N Shanmugam N, N Fletcher. Heart failure—pathophysiology and inpatient. British Journal of Anaesthesia Educ (2017) 17 (5): 151-160.

Chen Z, Niederer S, Shanmugam N, Sermesant M, Rinaldi C, Cardiac computational modelling of ventricular tachycardia and cardiac resynchronization therapy – a clinical perspective Minerva Cardioangiol 2017 Feb 17.

Patel H, Hayward C, Dungu J, Papadopoulou S, di Mario C, Ray R, Shanmugam N, Cowie M, Anderson L. Evolving eligibility criteria in phase III randomised controlled trials of drug therapy in heart failure with preserved ejection fraction: The critical play off between a ‘pure’ patient phenotype and generalisability Journal of Cardiac Failure J Card Fail. 2017 Apr 18.

Knott K, Shanmugam N. Book Chapter: Core Topics in Preoperative Anaesthetic Assessment and Management- Heart Failure Section – Cambridge University Press (in press).

Shanmugam N, Delgado OP, Garcia A, Grimster A, Valencia O, Jones S, Anderson L. Effect of atrioventricular optimization on circulating N-terminal pro-B-type natriuretic peptide following cardiac resynchronization therapy. European Journal of Heart Failure 2013 May;15(5):534-42.

Shanmugam N, Delgado OP, Garcia A, Grimster A, Valencia O, Jones S, Anderson L. Rate Adaptive AV delay and Exercise Performance following Cardiac Resynchronisation Therapy Heart Rhythm 2012 Nov;9(11):1815-21.

Shanmugam N, Yap J, Tan RS, Le TT, Gao F, Chan J, Chong D, Ho KL, Tan BY, Ching CK, Teo WS, Tan Ju Le, Liew R. Fragmented QRS complexes predict right ventricular dysfunction and outflow tract aneurysms in patients with repaired tetralogy of Fallot. International Journal of Cardiology 2012. 21st April.

Shanmugam N, Boerdlein A, Proff J, Ong P, Valencia O, Maier SK, Bauer WR, Paul V, Sack S. Detection of Atrial High Rate Events by Continuous Home Monitoring -Clinical Significance in the Heart Failure- Cardiac Resynchronization Therapy Population Europace. 2012 Feb;14(2):230-7.

Shanmugam N, Borgulya G, Anderson L. Letter by Shanmugam et al Regarding Article, “Primary Results From the SmartDelay Determined AV Optimization: A Comparison to Other AV Delay Methods Used in Cardiac Resynchronization Therapy (SMART-AV) Trial: A Randomized Trial Comparing Empirical, Echocardiography-Guided, and Algorithmic Atrioventricular Delay Programming in Cardiac Resynchronization Therapy”. Circulation. 2011 Aug 9;124(6):e190.

Shanmugam N, R Liew. The Implantable Loop Recorder- An important addition to the armentarium in the management of unexplained syncope. Annals Academy of Medicine 2012; 41:115-24.