DrAhran Arnold

Dr Ahran Arnold MBBS BSc MSc MRCP PhD is an Associate Professor of Cardiology at the National Heart and Lung Institute (NHLI), Imperial College London (h-index ≥25) and a Consultant Cardiologist specialising in Cardiac Electrophysiology, Complex Devices and Inherited Arrhythmia Syndromes at Hammersmith Hospital, Imperial College Healthcare NHS Trust. His personal website is drarnold.clinic .

He completed his undergraduate medical training at Imperial College London with numerous distinctions and merits in 2010 with an intercalated BSc in Neuroscience and Mental Health in 2008. He undertook his post-registration general medical training from 2011-14 in London (Chelsea & Westminster Hospital, Royal Brompton Hospital, King's College Hospital) in General, Acute, Emergency and Intensive Care medicine, as well as Cardiology and Neurology, at tertiary and quaternary centres. He completed his general cardiology training from 2014-16 at Royal Brompton Hospital and predominately at Hammersmith Hospital, Imperial College Healthcare NHS Trust alongside research training as an NIHR Academic Clinical Fellow in Cardiology at Imperial College London. He completed his electrophysiology and inherited cardiac conditions training Hammersmith Hospital, Imperial College Healthcare NHS Trust.

He completed a MSc in Health Economics, Outcomes and Management at the London School of Economics in association with the European Heart Academy with Merit in 2017. He completed a PhD in 2020 at the NHLI, with a focus on development and mechanistic evaluation of innovations in complex cardiac device therapy (His bundle pacing, Cardiac Resynchronization Therapy, Sudden Cardiac Death risk stratification, left ventricular outflow tract obstruction modulation, machine learning and haemodynamic sensors).

He was appointed an Academic Clinical Lecturer and Post-Doctoral Research Fellow at NHLI in 2020 funded by the NHLI and the BHF Imperial Centre of Research Excellence alongside completing his sub-specialty training in Complex Devices, Invasive Electrophysiology and Inherited Cardiac Conditions at Hammersmith Hospital. In 2022, he was appointed to an NIHR Academic Clinical Lectureship to continue this work. After being appointed as Clinical Senior Lecturer in 2024 he was awarded the Medical Research Foundation AI in Cardiovascular and Respiratory Diagnostics Mid-Career Fellowship in 2025.

He is the module lead for the Clinical Research and Innovation module for Year 2 medical students at Imperial College London and is an examiner, lecturer and project supervisor for the Cardiovascular Sciences iBSc at NHLI. He was a lecturer and examiner for the University of Buckingham Clinical MD in General Internal Medicine.

He is a peer-reviewer for the following publications: BMJ, EHJ, JACC:EP, AER, JCE, PACE, HF reviews and has been grant reviewer for ESPRC, NIHR and BHF among others. He is a Review Editor for Frontiers in Physiology and has been a topic editor for Frontiers in Cardiovascular Medicine.

Funding Awarded

“Machine Learning for Conduction System Pacing Capture Diagnosis” MRF-FEL-AI-24-105 - Medical Research Foundation – Artificial Intelligence in Cardiovascular and Respiratory Disease Diagnostics Fellowship – Primary Applicant - March 2025 - £281,251.14

“Development and validation of automated capture confirmation tools for conduction system pacing” TRP24-100006 – Primary Applicant - Heart Research UK – February 2025 – £198,960.95

“Non-invasive electro-anatomical mapping of repolarisation patterns after continuous conduction system pacing as cardiac resynchronisation therapy” SGL031\1034 – AMS Starter Grants – Primary Applicant – £25,000.00 – October 2024

"Unmasking concealed arrhythmia syndromes" FS/CRTF/23/24482 - Co-Applicant - BHF Clinical Research Training Fellowship: K Sales - February 2024 - £345,619.37

"Personalising Rhythm management using AI enabled Clothing Technology with Integrated Sensors" - Primary Applicant (clinical) - Innovate UK Advancing Prediction Medicine - £875,939.00

"Novel solutions to the challenges in implantation and follow-up of conduction system pacing" FS/CRTF/23/24417 - Co-Applicant - BHF Clinical Research Training Fellowship: A Naraen - May 2023 - £315,035.12

"Mechanisms and innovations in right ventricular pacing for hypertrophic cardiomyopathy" FS/CRTF/21/24171 - Co-Applicant - BHF Clinical Research Training Fellowship: JS Mohal - July 2021 - £279,826.08

"Mechanisms and innovations in right ventricular pacing for hypertrophic cardiomyopathy" RFPR2122_22 - Co-Applicant - Imperial Healthcare Charity Fellowship: JS Mohal - April 2021 - £65,000.00

Post-Doctoral Research Fellowship RE/18/4/34215 - Applicant - British Heart Foundation Imperial Centre of Research Excellence - £40,000.00

"Development of physiological biomarkers for implantable cardioverter defibrillators to allow patient specific therapies, in order to improve outcomes" P74166 - Co-Applicant - NIHR Imperial Biomedical Research Centre Project Award - April 2018 - £206,924.00

Awards and Prizes
Heart Rhythm Society (HRS) Highest Scoring Fellow Abstract - Winner (2021)

European Heart Rhythm Association (EHRA) Young Investigator Award - Finalist (2021)

European Heart Rhythm Association (EHRA) best of e-cardiology abstract - Supervisor of Winner - CP Chan (2021)

Heart Rhythm Society (HRS) Highest Scoring Digital Health Abstract - Winner (2020)

European Heart Journal: Quality of Care and Clinical Outcomes (EHJ:QCCO) - most downloaded article (2019)

3rd Physiology of Pacing Symposium (PPS3) - Best Abstract - 2nd place (2019)

3rd Physiology of Pacing Symposium (PPS3) - Travel Scholarship - Winner (2019)

National Heart and Lung Institute (NHLI) - Best Clinical Oral Presentation (2019)

EHRA-certified Cardiac Device Specialist - Level 1 (2019)

European Heart Rhythm Association (EHRA) Young Investigator Award - 2nd place (2019)

European Heart Rhythm Association (EHRA) Innovation Award - Semi-Finalist (2019)

Venture Catalyst Challenge Innovation Award - Semi-Finalist (2019)

European Heart Rhythm Association (EHRA) Congress Travel Award - Winner (2019)

Royal Society of Medicine (RSM) President's Medal for Cardiovascular Research - Winner (2018)

MSc Health Economics, Outcomes and Management, London School of Economics (LSE) - Merit (2017)

Academic Clinical Fellowship in Cardiology (2014)

London Deanery Excellence in Leadership Award (2012)

MBBS Finals Medicine and Surgery, Imperial College London - Merit (2010)

MBBS Finals Obstetrics, Gynaecology, Psychiatry, Imperial College London - Distinction (2009)

BSc Neuroscience and Mental Health, Imperial College London - Upper Second Class Honours (2008)

Videos
Interview with HRStv 2020 (highest scoring digital health abstract) Machine learning for His bundle pacing

Interview with TouchCardio 2019 (young investigator award runner-up) His bundle pacing for LBBB