Medical Director of the London Heart Centre

Dr Syed Ahsan is a Consultant Cardiologist and Heart Rhythm Specialist at the Barts Heart Centre. He treats a wide range of heart conditions.

Dr Ahsan undertook his cardiology specialist training at various prestigious hospitals in London. These include the Royal Brompton Hospital, Great Ormond Street Hospital and the Heart Hospital where he undertook his fellowship in Cardiac Electrophysiology.

In his current role Dr Ahsan manages all aspects of adult cardiology. He graduated with a first class honours degree from Guys, King's and St Thomas. His research work was awarded the Royal Society of Medicine National Prize and was presented nationally and internationally at high profile conferences.

He is a highly experienced operator who routinely implants all types of cardiac pacing and defibrillator devices and performs ablations for arrhythmia using the latest technologies. He also sees and treats patients with blackouts, chest pains and hypertension. 

Dr Ahsan leads the specialist POTS service at Barts Heart Centre

Dr Papageorgiou serves as a Consultant Cardiologist & Electrophysiologist at the Lister Hospital in Hertfordshire and at Barts Heart Centre in London. 

Having trained in prestigious centres in Greece, Germany, and United Kingdom, Dr Papageorgiou is highly experienced in all areas of cardiology with a specialist interest in heart rhythm disorders (arrhythmias) and heart failure (pump failure). He also sees patients with palpitations, skipped beats, chest pains, shortness of breath, dizzy spells/blackouts, and high blood pressure.

He completed his postgraduate degrees at Athens University Medical School in Greece, followed by specialised training in Cardiology and Cardiac Electrophysiology in prestigious centres such as the Heart Hospital/UCLH and the St. Bartholomew's.

He performs catheter ablation procedures for heart rhythm disorders and implants simple and complex cardiac devices such as pacemakers, defibrillators and resynchronisation devices.

He holds an Honorary Associate Professorship at the University College London (UCL) and has published over 200 papers. 

Dr Antonis Pavlidis is an experienced Consultant Cardiologist based at St Thomas' Hospital, where he specialises in interventional cardiology. He treats a range of conditions, including chest pain, palpitations, valvular heart disease, hypertension, dyslipidaemia, and heart failure. His particular interest is in the treatment of complex coronary disease and the percutaneous treatment of chronic total occlusions.

Dr Pavlidis gained his medical degree from the University of Athens before undertaking specialist training at St Thomas'Hospital and the London Chest Hospital. He completed his PhD in primary dyslipidaemia and has authored several book chapters and peer-reviewed publications. He is currently involved in clinical research in the area of preventive and interventional cardiology.

Areas of interest

Chest pain; Angina; Breathlessness; Palpitations; Dizziness and Blackout; Coronary artery disease; Coronary angioplasty; Valvular heart disease; General cardiology; Hypertension; Hyperlipidaemia; Familial lipid disorders; Echocardiogram and Stress Echocardiogram; CT coronaryangiogram, ECG Holter monitor; Ambulatory Blood Pressure monitor

Dr Martin Thomas is a Consultant Cardiologist at St Bartholomew's Hospital, London. Trained in all aspects of general cardiology, Dr Thomas has a specialist interest in heart failure management and general cardiology. He is also an expert in aviation cardiology and is a cardiology advisor to the Civil Aviation Authority.

Dr Thomas qualified from the University of Southampton, School of Medicine in 1992. He completed his postgraduate specialist training in cardiology at the Sussex Cardiac Centre, Brighton, and St. George’s Hospital, London. Additionally, he undertook a one-year senior fellowship in the advanced heart failure and cardiac transplantation service at the Royal Perth Hospital in Western Australia.

Dr Thomas was awarded an MD degree from Imperial College, London, after completing his thesis on the clinical problem of heart failure with preserved systolic function. He has since published numerous papers in the field of heart failure.

Dr Thomas treats a wide range of conditions including chest pain, breathlessness, palpitations, and high blood pressure. His areas of expertise encompass general cardiology, heart failure, and aviation cardiology.

Dr Robin Chung is a consultant cardiologist who sees patients with breathlessness, palpitations, chest pain, dizziness and valve problems.  

He has broad general cardiology experience and sub-specialty expertise in cardiac imaging, including CT coronary angiography and advanced echocardiography. He has internationally accredited expertise in cardio-oncology, or heart problems before, during, and after treatment in cancer patients.

Robin was trained in echocardiography by the legendary Dr Derek G Gibson at the Royal Brompton Hospital and in advanced echocardiography at Barts Heart Centre. He has an NHS base at the Whittington and honorary consultant at Barts Heart Centre and University College London Hospitals.

Dr Chung was involved in the establishment of cardio-oncology services at University College London and Barts Heart Centre.

Dr Chung has more than 50 research publications including 30 co-authored journal papers. 

I’m the Lead GP for J.P. Morgan’s London offices—a role I’ve held for nine years. I want to bring that same standard of timely, practical care to everyone else.

Too many smart, driven people delay their health because the system makes it hard: 45 minutes on hold with horrible music to get through to the NHS GP, weeks to be seen, and a life spent prioritising kids, partners, teams and clients ahead of themselves. Meanwhile, the body keeps score—waking through the night before a big day, daily frontal headaches and a stiff neck from work, and the cough you’ve been “meaning to check.”

Dr Suneil Aggarwal is a Cardiologist specialising in valve and congenital heart disease interventions (structural intervention), as well as general cardiology. 

He qualified with multiple distinctions and prizes from University College London in 2002. He completed an MD research degree from University College London. He has been practicing as Lead for Structural Intervention in Liverpool for the last 9 years. He has now relocated to Barts Heart Centre to practice at what is one of the largest cardiac centres in Europe. He has particular expertise in TAVI, mitral interventions, PFO/ASD closure and other complex congenital and valve interventions. His reputation amongst his peers is reflected in twice being elected to the Council of the British Cardiovascular Intervention Society, the national society for Interventional Cardiologists.

Dr Michael Michail is a highly experienced Consultant Interventional Cardiologist with expertise in the diagnosis and treatment of coronary artery disease and structural heart conditions, particularly aortic stenosis. He specialises in advanced interventional procedures, including coronary angioplasty, intravascular imaging, pressure wire studies, and transcatheter aortic valve implantation (TAVI).
 

Dr Michail provides comprehensive cardiac care, managing conditions such as chest pain, breathlessness, palpitations, dizziness, valve disease, hypertension, and high cholesterol.

After graduating from St George’s Hospital Medical School, London, Dr Michail trained in leading cardiac centres, including The Heart Hospital (UCLH) and Barts Heart Centre. He completed a prestigious three-year funded PhD and interventional fellowship at MonashHeart, Melbourne, in collaboration with University College London. 

Konstantinos Savvatis is a Consultant Cardiologist in the Inherited Cardiovascular Diseases Unit at Barts Heart Centre in London and Honorary Associate Professor in University College London and Queen Mary University London. He trained at the Department of Cardiology at the Charité University Hospital in Berlin, Germany, one of the largest centres in Europe focusing on dilated and inflammatory cardiomyopathy. He acquired his PhD on the immunomodulatory role of matrix metalloproteinases in acute myocarditis and continued working as Clinician Scientist at the Charité and the Centre for Regenerative Therapies focusing on the role of fibrosis and fibroblasts in heart failure and cardiomyopathy.

His main clinical and academic interests are genetic and inflammatory cardiomyopathies and, especially, the risk assessment and therapy of patients with dilated cardiomyopathy, hypertrophic and arrhythmogenic cardiomyopathy, myocarditis and cardiac involvement in Neuromuscular Conditions (limb girdle, Duchenne and Becker’s muscular dystrophy, myotonic dystrophy, Friedreich’s ataxia).

He is specialised in advanced cardiovascular MRI and echocardiography.

His work has been published in several high impact journals, such as Nature Communications, Circulation, Circulation Research, JACC and European Heart Journal.

John Yap is a consultant cardiac surgeon who works in the NHS at St Bartholomew’s Hospital, London. He specializes in the surgical treatment of valvular heart disease, Mitral repair, Marfan syndrome, Valve sparing operation and diseases of the thoracic aorta (including aortic dissection and aneurysms). He has a special interest in surgical and hybrid treatment of AF including the Maze operation, Convergent and left atrial appendage closure (open and keyhole). He is an educator in the Convergent AF ablation procedure.


Mr. Yap completed his medical degree at Glasgow University and went on to specialize in general surgery, obtaining a fellowship with the Royal College of Physicians and Surgeons, Glasgow, in 1992. He further specialized in cardiothoracic surgery at Royal Brompton, London Chest and St Bartholomew’s Hospital. He also undertook a research fellowship at Mayo Clinic, USA, where he was awarded Doctorate degree for his research into gene therapy. He has published widely in peer reviewed journals and has presented at local, national, and international meetings.

Dr Badiani is a Consultant Cardiologist at Barts Heart Centre and Whipps Cross University Hospital. She graduated from the University of Glasgow and completed her cardiology specialty training in 2021. She specialises in advanced echocardiography (bubble and stress echocardiography, transoesophageal echocardiography), cardiopulmonary exercise testing, heart valve disease and heart failure. She is a vital member of the valve service, leading multidisciplinary team meetings and mentoring physiologists within their clinics.

Dr Badiani has completed a PHD in "Novel Biomarkers in the Assessment of Aortic Stenosis", has multiple peer reviewed publications and has presented her research at national and international conferences. In addition to her clinical work and research, she is committed to teaching and regular organises educational courses relating to echocardiography. She has several leadership roles in education and was recently elected to the role of President of the Cardiology Section of the Royal Society of Medicine.

Patients with symptoms of chest pain (angina), shortness of breath, ankle swelling, palpitations, dizziness or fainting will be carefully evaluated, and investigations will be promptly organised to allow accurate diagnosis and treatment. She is also experienced in cardiac risk factor modification, including hypertension and high cholesterol. Patients without symptoms though at risk of developing cardiovascular disease (e.g. those with diabetes, hypertension, high cholesterol, family history of heart disease) will be assessed and provided with a personalised management plan to reduce risk, provide peace of mind and improve long term health.

Patients have commented on Dr Badiani's calm nature and excellent bedside manner. She takes time to explain the available options and makes patients feel completely at ease.

Dr Ankur Gulati is an experienced and highly approachable Consultant Cardiologist offering expert, personalised care at the London Heart Centre. Cambridge-educated with first-class honours, and further advanced training at Harvard’s Brigham and Women’s Hospital, he brings world-class expertise to every patient. 

He holds NHS consultant appointments in London at St Thomas’ and Queen Elizabeth Hospitals, ensuring his practice remains at the forefront of modern cardiology.

Having gained dual accreditation in Cardiology and General Internal Medicine, Dr Gulati has the credentials to assess both heart conditions and other health issues that may be related - giving patients clearer answers, streamlined care and confidence that nothing is missed. His broad skillset means that many patients can receive both their diagnostic testing and treatment under one consultant, ensuring continuity of care.

His specialist areas include:

• coronary artery disease, angioplasty and stenting
• cardiac imaging (MRI and CT)
• heart failure and cardiomyopathy
• chest pain, palpitations, breathlessness, dizzy spells and blackouts
• cardiac risk factor management (especially high blood pressure and cholesterol)

Patients consistently praise his warm manner, clear explanations and the time he takes to listen. His excellent feedback rating and Doctify Award for Outstanding Patient Experience are testimony to the quality of care he delivers.

Dr Kuan Joo (Victor) Voon works as a Consultant Cardiologist at Homerton Healthcare NHS Foundation Trust and is the cardiac CT lead. He cares for patients in all aspects of adult general cardiology, particularly the non-invasive assessment and management of cardiovascular health. This also includes the diagnosis and treatment of patients with chest pain, breathlessness, palpitations and blackouts. He strongly believes in holistic, personalised care tailored for each individual’s needs.

Dr Voon graduated in medicine at the Trinity College, University of Dublin in 2006 and then went on to complete his specialist training in cardiology in Ireland. As part of this programme, he moved to London to further train in Cardiovascular imaging at several prominent tertiary heart centres.

His subspecialism is in multimodality advanced cardiovascular imaging, particularly in the use of cardiac CT in cardiovascular health. He has been elected as a Fellow of the Royal College of Physicians UK.

Dr Voon regularly teaches undergraduate and postgraduate students. He has won numerous awards and is an active researcher in the field. He has published many articles in reputable medical journals and his work has been widely cited by his peers in the medical community. He has been awarded the Doctorate in Medicine for his thesis researching a novel preventive anti-inflammatory and immune-modifying treatment in early cardiovascular disease.

Dr Ramasamy is a leading Consultant Cardiologist and Interventional Cardiologist at the internationally recognised Barts Heart Centre, St Bartholomew’s Hospital — the UK’s largest and most advanced cardiac centre. He also practises at Homerton University Hospital, delivering comprehensive, high-quality care across all aspects of adult cardiology.
He additionally serves as an elected member of the Homerton NHS Foundation Trust’s Council of Governors, contributing to governance, quality assurance, and strategic development of the hospital.

Holding dual accreditation in Cardiology and General Internal Medicine, Dr Ramasamy offers a uniquely comprehensive and holistic approach to patient care — combining cutting-edge diagnostics, world-class interventional skills, and a warm, reassuring bedside manner.

A graduate of The University of Edinburgh with distinction, he completed postgraduate training in Oxford and London before specialist cardiology training at the internationally acclaimed Barts Heart Centre. This was followed by advanced post-CCT fellowship training in complex coronary intervention and cardiogenic shock at the Royal Brompton Hospital.

Dr Ramasamy’s PhD from Queen Mary University of London — awarded with no corrections, a rare academic distinction — focused on the most advanced invasive and non-invasive coronary imaging technologies, including NIRS-IVUS, cardiac CT, and multimodality AI-driven plaque assessment.

An Honorary Senior Clinical Lecturer at Queen Mary University of London, he leads research into coronary plaque characterisation, computational modelling, and AI-enabled imaging, earning prestigious national awards including the Royal Society of Medicine Prize and finalist positions in National Young Investigator Awards across interventional cardiology and cardiovascular imaging.

Clinically, he is renowned for his expertise in intravascular imaging-guided PCI, optimising lesion preparation, physiological assessment, and stent outcomes in complex coronary disease. His innovative clinical work was awarded Best Clinical Case at EuroPCR — Europe’s flagship interventional cardiology congress.

Dr Ramasamy provides expert assessment and treatment for a wide range of conditions, including chest pain, breathlessness, palpitations, blackouts, hypertension, lipid disorders, heart failure, cardiovascular risk assessment, perioperative evaluation, and general cardiac health screening. He uses state-of-the-art diagnostic technologies — including ambulatory ECG and BP monitoring, echocardiography, cardiac CT, cardiac MRI, and myocardial perfusion imaging — and is highly skilled in complex coronary procedures such as angiography, physiological assessment, intravascular imaging, balloon angioplasty and stent implantation.

Dr Ramasamy’s practice is grounded in evidence-based medicine, technical excellence, and advanced imaging. Patients consistently commend his calm, reassuring manner, his clarity in communication, and his commitment to providing personalised, highest-standard cardiovascular care.

Dr Filip Zemrak is a Consultant Cardiologist at St Bartholomew’s Hospital (Barts Heart Centre), London, and an Honorary Associate Professor at University College London (UCL).

He provides expert diagnosis and treatment for a wide range of heart conditions, with particular focus on:

• Heart failure (including complex heart failure and optimisation of long-term treatment)
• Adult congenital heart disease (ACHD)
• Heart rhythm problems (arrhythmias) including palpitations and atrial fibrillation
• Advanced cardiac devices, including complex ICD therapy, CRT (cardiac resynchronisation therapy), S-ICD, and leadless pacemakers
• Cardiovascular prevention and risk assessment, including blood pressure and cholesterol management

Dr Zemrak graduated in Medicine in 2006 from the Medical University of Łódź (Poland) and completed his specialist medical training in the UK. He undertook cardiology training in North-East London and was appointed Consultant Cardiologist in 2020.

He was awarded a PhD in Cardiovascular Sciences (University of London) in 2017, with research focused on cardiomyopathy (heart muscle disease). His work included research experience in London and at the National Institutes of Health (NIH) in the United States, and he has published in peer-reviewed cardiology journals.

Alongside clinical work, Dr Zemrak has a strong interest in healthcare leadership, quality improvement and clinical governance. He was a Darzi Fellow, working on improving heart failure services across East London, and holds a Master’s degree in Health Economics from the London School of Economics (LSE), supported by a grant from the European Society of Cardiology.

He leads the CardioMEMS programme at Barts, supporting selected heart failure patients with remote monitoring to guide personalised treatment and help reduce the risk of hospital admissions.

Dr Zemrak also works with ToBe Heartsafe, a non-profit organisation providing cardiac screening, training and risk assessments to help prevent sudden cardiac death in young people.

Dr Emmanuel Androulakis is an
internationally recognised Consultant Cardiologist and an Academic in renowned UK and International postgraduate Programmes. He is a specialist in genetic
(familial) heart muscle conditions (Cardiomyopathy), Sports Cardiology, Preventive Cardiology & Multimodality Cardiovascular Imaging. He strives to apply non-invasive advanced heart diagnostic imaging procedures for his patients such as heart MRI, heart CT, advanced echocardiography as well as
stress testing.

Following his PhD in cardiovascular genetics and 2 MSc degrees (Sports
Cardiology, St George’s University- and Health Economics & Management), his
extensive expertise has been honed through years of comprehensive training and dedicated practice in the largest London centres by world leaders in the field (Royal Brompton & Harefield Hospitals, St George’s Hospital/University, St Bartholomew’s Hospital). This rigorous program encompassed fellowships in Inherited Cardiac Conditions and Cardiomyopathy as well as advanced cardiac Multimodality Imaging. Dr Androulakis earned internationally recognised accreditations in cardiac MRI, cardiac CT and advanced echocardiography, demonstrating his commitment to excellence.

He is a board member of the European Association of Cardiovascular Imaging
(EACVI) and works collaboratively with the Society of Cardiovascular Magnetic Resonance (SCMR) and European Association of Preventive Cardiology (EAPC). He has been elected as one of the EACVI ‘Leaders of Tomorrow Programme’ for 2022-2024 and has been elected to serve the ‘Scientific Initiative Committee’ of EACVI since 2022. He
holds the esteemed position of honorary Senior Lecturer at the
renowned MSc in Sports Cardiology of St George’s University London and he is an adjunct Senior Lecturer at the MSc in ‘Exercise & Exercise-based rehabilitation in patients with CV diseases’, International University of Crete, Greece.

He is a Consultant Cardiologist at King’s College Hospital, London. He has
worked as Cardiologist for several years to the charitable Organization ‘Cardiac
Risk in the Young’ (CRY), screening
per year more than 30,000 young individuals and athletes across all sports
disciplines for heart disease, and focusing on reducing life threatening
cardiac conditions. Dr Androulakis is currently credited with more than 120
peer-reviewed medical publications. He regularly presents as an expert speaker
at National and International Conferences.

Dr Rowland was appointed to the National Heart and Lung Institute and the Royal Brompton National Heart Hospital. He then moved to St George’s Hospital, helping to develop the treatment of heart rhythm problems. He was the former medical director of Barts Heart Centre since its formation.