Dr. Ashok Seth

Interventional Cardiologist

   Fortis Escorts Heart Institute, Okhla , New Delhi, India

  40+ Years of experience


Qualification and Experience

Dr. Ashok Seth is one of the most sought-after interventional cardiologists in India. He is presently the Head, Cardiology Council of Fortis Group of Hospitals and Chairman of Fortis Escorts Heart Institute, New Delhi. In 1978, Dr. Seth completed his MBBS from Jawaharlal Nehru Medical College. He then moved to the United Kingdom and worked as a cardiologist at Queen Elizabeth Hospital. Dr. Seth was also associated with Max Healthcare. Dr. Seth has a passion for academics as was associated with various reputed medical institutions of India and abroad. He is the Fellow of Royal College of Physicians of Ireland, Edinburg, and London.

Contribution to Medical Science

Dr. Ashok Seth is a highly experienced Cardiac Surgeon with more than 50000 angiograms and 20000 angioplasties. This exceptional clinical experiences bought his name in the Lima Book of Records. In 2003, he was awarded Padma Shri and in 2015, with Padma Bhushan. During his more than 30 years of clinical career, Dr. Seth has pioneered various angioplasty techniques such as the use of Impella heart support device, Thrombectomy devices, Directional Atherectomy, and Bioabsorbable Stents. Dr. Seth has the unique capability of demonstrating and teaching complex angioplasty techniques through the live transmission.

Conditions treated by Dr Ashok Seth

We have outlined here for you the many conditions whose treatment is done by Dr. Ashok Seth:

  • Angina
  • Atherosclerosis
  • Tachycardia
  • Coronary Artery Disease
  • Bradycardia
  • Cardiac Arrhythmias
  • Blocked Arteries

Structural heart diseases can be resolved through interventional procedures for the person to live a healthy and long life. Patients with these heart conditions can be provided with best treatment with the assistance of modern technology and world class equipments. The right solution to these conditions must be followed up with the quality post procedural care as a sign of a patient focused approach.

Signs to look for before visiting Dr Ashok Seth

We bring to you the various symptoms and signs in patients having structural or non-coronary cardiovascular conditions:

  • Palpitations
  • Dizziness
  • Chest Pain
  • Shortness of breathe
  • High Blood Pressure

Fatigue and chest pain are a sign that the person needs immediate solution to their heart condition. If someone is suffering from high blood pressure for long time periods then it could be a sign of a structural issue of the heart. Further, if not treated in time structural heart conditions can start affecting the kidney and even lead to kidney dysfunction.

Operating Hours of Dr Ashok Seth

The doctor's operating hours are 6 days a week, 10 am to 7 pm. The skill and efficiency shown by the interventional cardiologist has been seen time and again and the patient reviews make it clear.

Popular Prcedures Performed by Dr Ashok Seth

The popular interventional cardiology procedures performed by Dr. Ashok Seth are as follows:

  • Angiography (Including Non-Ionic Contrast)
  • Pacemaker Implantation Surgery
  • Angioplasty
  • EPS & RFA

The solution for blocked arteries because of coronary heart disease has been through procedures like placement of stent, angioplasty and atherectomy for a long time now. Cardiac arrhythmia or when electrical impulses are functioning improperly can be treated with a procedure that inserts defibrillators and pacemakers in the heart.

Past Experience

  • 2000 - 2001 Honorary Professor of Cardiology at Gandhi Medical College
  • 2001 - Present Honorary Professor of Cardiology at Medical College
  • 2008 - Present Honorary Professor of Cardiology at Padmashree Dr. D Y Patil University
  • Honorary Professor of Cardiology at Bangladesh Medical College, Bangladesh


  • MBBS
  • FACC
  • Fellowship of the European Society of Cardiology (FESC) - European Society of Cardiology, 1995
  • Fellow of the Royal College of Physicians of Canada (FRCP Canada) - Canada , 1995
  • FACC - American College of Cardiology, 1995
  • Cardiological Society of India (CSI)
  • Systemic exposure of everolimus after stent implantation: A pharmacokinetic study.
  • Three-Dimensional Echocardiographic Evaluation of Aspergilloma Complicating Right Ventricular Permanent Pacemaker Implant.
  • Saphenous vein graft stenting using a novel filter device for distal protection
Angiography (Including Non-Ionic Contrast)

Most physicians advise their patients to undergo the angiogram procedure (also known as angiography and arteriogram) when certain symptoms such as a heart attack or chest pain become a source of worry. A stress test is performed on patients who report chest pain, which is then followed by an angiogram test.

Angiography procedure aims at testing the blockages in the coronary arteries apart from any other cardiovascular-related ailments. Angiography and angiogram procedure can both locate narrowing arteries or blockages that may exist in different parts of the body.

Angiography is recommended for patients with coronary heart diseases (CHD), which can cause the heartbeat to stop suddenly and abruptly. The patient may also suffer from severe chest pain. Angiography can also be performed on patients on an emergency basis when they experience a heart attack. If the blockage is not treated immediately, then healthy tissues around the heart start perishing and turn into scar tissue. It can give rise to several long-lasting problems. Angiography may also be required in the case of a patient with aortic stenosis or those who have had an abnormal heart stress test.


Coronary artery disease (CAD) is one of the most common heart diseases reported across the world. It results due to blood clot formation and plaque accumulation in the major blood vessels of the heart.

Balloon angioplasty is the most common endovascular procedure (procedure performed inside the blood vessel) carried out to treat coronary artery disease. In this procedure, the blood clots in the major arteries of the heart are detected and cleared by inserting a catheter into an artery of the hand (radial artery) or leg (femoral artery). This catheter consists of a balloon at its tip, which dislodges the clot to the periphery of the blood vessel after inflation.

Angioplasty may or may not be followed by coronary stent placement, depending on the angiography findings. This procedure is performed in patients with fewer blood clots in the vessels and those who do not respond to medications. It may also be carried out as an emergency procedure to treat a heart attack.

Signs and symptoms of plaque deposits in the heart

  • Fatigue and dizziness due to insufficient blood supply to the tissues and overall decreased efficacy of the heart
  • Shortness of breath to compensate for inadequate pumping of the blood
  • Compromised blood flow to the heart resulting in heart attack, characterized by pain in the chest, lower jaw, and left arm

Radiofrequency ablation (RFA) is a surgical procedure in which heat generated from medium frequency alternating current is used to ablate a tumour, a part of the electrical conduction system of the heart, or any other dysfunctional areas. The ablation therapy requires local anaesthesia and is done in an outpatient setting.

RFA is a popular treatment for the correction of any abnormality in the electrical system of the heart, which is confirmed during electrophysiology studies (EPS). During this test, the electrophysiology of heart is studied and any abnormalities are noted. The procedure used to correct the identified abnormalities associated with electrophysiology of heart is known as the cardiac ablation procedure.

Pacemaker Implantation Surgery

How does a Pacemaker Implant work?

Pacemaker implantation is a common surgery and it significantly improves the quality of life led by the patient.  The blood-pumping organ, heart, is essentially made of a few groups of muscles. These muscles are controlled by electrical signals to ensure that the heart beats naturally and effectively to circulate blood to all parts of the body. When this electrical signal gets disrupted due to some reason, then an individual may experience tachycardia (where hear beats abnormally slow), heart block, arrhythmia (irregular heartbeat), or a cardiac arrest (abrupt and sudden stopping of the heartbeat).

The contractions happen as a result of triggered electrical pulses generated by sinoatrial node or the SA node. It acts like a pacemaker of the heart. This electrical pulse is then sent to the atrioventricular node or the AV node for relaying the pulse to the ventricles. Pacemaker implantation is suggested when this electrical signaling network is disrupted.The faulty functioning of the natural pacemaker of the heart may lead to the following:

Sick sinus syndrome: It is characterized by a slow heartbeat (bradycardia) or fast heartbeat (tachycardia) or a combination of both. It can happen due to age, a previous history heart attack, and thyroid problem, too much of potassium accumulation in blood, heart surgery, or sleep apnea.

Heart Block

In this case, the impulse is either delayed or absent.

Cardiac arrest

The heart can stop beating. It may result because of the presence of coronary artery disease and muscle problems in the heart, which can happen after the age of 35.


Some of the symptoms observed in patients requiring pacemaker implantation are:

  • Bradycardia
  • Tachycardia
  • Uncontrollable fatigue
  • Dizziness experienced throughout the day
  • Shortness of breath
  • Acute chest pain
  • Palpitation and fluttering of the heart (arrhythmia)

What is a pacemaker implant?

A pacemaker implant is a small device that weighs around 20 g to 50 g and is the size of a matchbox. It has a pulse generator with a battery, a tiny computer circuit and a few wires called pacing leads. This system is attached to the heart and it emits signals through the wires. The pacing rate or the rate of electrical impulses can be adjusted as per the requirement of the body and be accordingly programmed. It can sense if a heartbeat is missed or if the heart is beating too slow. Accordingly, it starts sending a steady signal to normalize the beating of the heart. If the beats are normal, then it simply does not send any signal.

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Dr. Ashok Seth

Frequently Asked Questions
What area of specialization does Dr. Ashok Seth have?
Dr. Ashok Seth is specialized in India and of the most sought after doctors in Heart Specialist.
Does Dr. Ashok Seth offer Telemedicine Consultation through Medigence?
No, this doctor dose not offer telemedicine via MediGence
How many years of experience does Dr. Ashok Seth have?
Dr. Ashok Seth is one of the most sought after specialists in India and has over 40+ Years years of experience.
FAQ's Related to Interventional Cardiologist
What does a Interventional Cardiologist do?

The interventional cardiologist either performs or prescribes you to get diagnostic and screening tests to find the reasons behind your prevailing heart issue. A1L1_FAQ_Interventional_Cardiologist Even in case of emergency heart situations such as a heart attack, you can go to this doctor. You must consult the doctor at once if you are faced with a heart condition otherwise situation may deteriorate further.

What are the tests required before and during consultation for Interventional Cardiologist?

Here is the list of tests required before and during consultation for an Interventional Cardiologist:

  • Cardiac Computed Tomography
  • Myocardial Perfusion Imaging (MPI)
  • Exercise Stress
  • Echocardiogram

The tests tie in with the treatment plan which can be decided upon basis your discussion with the doctor. The blood vessel and heart health become apparent after the test results come in.

When should you go to see a Interventional Cardiologist?

In order to keep your heart healthy, you must exercise, eat well and keep a balanced lifestyle. Interventional cardiology techniques can help resolve the structural defects in your heart or cardiovascular issues if any. When heart issues are treated with catheter based procedures which do not involve surgery, then such procedures are done by Interventional cardiologists. If on your visit to the cardiologist you realise that the dietary and lifestyle changes are not enough they may refer you to this doctor.

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