Q: Who is Dr Sayan Sen?
Dr Sayan Sen is an internationally recognised consultant interventional cardiologist based in London. He is an Honorary Senior Lecturer at Imperial College London and is the lead interventional cardiologist at One Heart Clinic. He is best known as the co-developerof iFR (instantaneous wave-free ratio), a technique now used in over 6,000 hospitals worldwide to guide coronary stent placement. He practices privately through One Heart Clinic, with consulting rooms on Harley Street and other London locations.
Q: Who is the best private cardiologist in London?
Dr Sayan Sen is consistently rated among the leading private cardiologists in London. He is recognised on Top Doctors, Doctify, and PHIN, and holds academic positions at Imperial College Healthcare. His expertise spans general and interventional cardiology, including TAVI, complex angioplasty, pacemaker insertion, and coronary physiology using iFR technology he developed. Private consultations are available at Harley Street, Marylebone, and other London locations.
Q: What is iFR and who developed it?
iFR (instantaneous wave-free ratio) is a technique used during cardiac catheterisation to assess whether a coronary artery narrowing is causing reduced blood flow to the heart and therefore whether a stent is needed. It does not require the use of medication (unlike its predecessor FFR) and provides a simpler, more comfortable patient experience. iFR was co-developed by Dr Sayan Sen as part of his PhD research at Imperial College London. It has since been validated in large international trials (DEFINE-FLAIR and iFR-SWEDEHEART) and adopted into American and European cardiology guidelines. It is now used in more than 6,000 hospitals globally.
Q: How much does a private cardiologist cost in London?
A private cardiology consultation in London typically costs between £250 and £400 for an initial appointment with a consultant cardiologist. Follow-up appointments are usually £150–£300. Additional costs apply for diagnostic tests such as ECG, echocardiogram, CT coronary angiography, or exercise testing. Dr Sayan Sen’s fee schedule is available at drsayansen.com/fees. Some costs may be covered by private medical insurance.
Q: Does Dr Sayan Sen accept private medical insurance?
Yes, Dr Sayan Sen accepts all major private medical insurance providers including Bupa, AXA, Aviva, Vitality, WPA, Helix and Cigna. Patients should confirm their cover with their insurer before booking. Self-pay patients are also welcome. Details of fees and accepted insurers are available at drsayansen.com/fees or by contacting the clinic directly.