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Dr. S. Radhakrishnan


Paediatric Cardiologist


40+ Years of Experience


New Delhi

About Doctor

Dr. S. Radhakrishnan is a renowned pediatric cardiologist with four decades of expertise. He has successfully performed many heart surgeries on youngsters.

The Delhi Medical Council has approved Dr. Radhakrishnan for professional membership.

His report of Balloon Dilatation of the Atrial Septum in the Transposition of Great Vessels and Coil Closure of PDA in India was the first of its kind, making him a medical pioneer.

Transesophageal and intraoperative echocardiography are only two procedures he's performed more than 5,000 times.

After four years of study, he received his medical degree from Maulana Azad College in 1980. In 1984, he earned his MD from Delhi University, and in 1987, he earned his DM (Cardiology) from AIIMS, New Delhi.

In 1993 and 1994, he completed a specialized residency program at Guys Hospital in London, United Kingdom. In 1990, he spent three weeks as a Visiting Fellow at the Mayo Clinic in Rochester, Minnesota.

Coil closure of PDA, balloon valvuloplasties, cardiac catheterization, echocardiography, and angiography are all areas in which he excels.

With others, he has written extensively studied publications for scholarly journals on a variety of topics related to cardiac surgery.


Medical Qualifications

  • MBBS from the University of Delhi in 1980
  • MD from the University of Delhi in 1984
  • DM from the University of Delhi in 1986 

Clinical Expertise

Special Interest

  • Cardiac Catheterisation
  • Angioplasty And Stenting
  • Asd Vsd Device Closure
  • Tetralogy Of Fallot 
  • Transcatheter Aortic Valve Implantation
  • Patent Ductus Arteriosus

All Treatments

  • Coronary Angiogram
  • Renal Angiogram
  • Cerebral Angiogram
  • Peripheral Angiogram
  • PTCA-Percutaneous Transluminal
  • Coronary Angioplasty
  • Peripheral Angioplasty
  • Aortic Stent Grafting
  • EPS-Electrophysiological
  • Radiofrequency Ablation
  • IVC Filter Insertion
  • Biventricular Pacing
  • AICD

Professional Work Experience

  • He was a consultant at the Sanjay Gandhi Post Graduate Institute of Medical Sciences in Lucknow.

Career Highlights

  • Dr. S. Radhakrishnan is a highly experienced and well-respected pediatric cardiologist. He has worked with children for the past four decades and has performed various heart surgeries.
  • As a medical practitioner, Dr. Radhakrishnan holds a Delhi Medical Council membership.
  • He is recognized for being the first person in the history of medicine to disclose a pioneering procedure, such as balloon dilatation of the atrial septum in the transposition of great vessels and coil closure of PDA in India. This achievement earned him the title of "pioneer."
  • Throughout his career, he has completed over 5000 procedures, some of which include transesophageal and intraoperative echocardiography. 

Research and Fellowships

  • He has co-authored well-researched publications for reputable journals on many topics of cardiac surgery. 

Awards and Recoginition

  • He is known for having performed 3000 cardiac catheterizations.
  • He has also performed more than 5000 echocardiography procedures.

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