dr hazra
Dr. P. K. Hazra

The Micra® Transcatheter Pacing System (TPS), world’s smallest pacemaker, was successfully implanted in the heart of an 83-year-old man. Recently approved by the U.S. Food and Drug Administration (FDA), it is a new type of heart device that provides patients with the most advanced pacing technology at one-tenth the size of a traditional pacemaker. The second implant in India and first in eastern India, the procedure was performed by Dr. P. K. Hazra, Director of Cardiology, AMRI Hospital, Kolkata.

The patient had been diagnosed with sick sinus syndrome some time ago. This is a condition where the natural pacemaker of the heart does not send out a signal telling the heart to beat often enough, thereby causing the heart beat to slow down.  Bradycardia is a condition characterized by a slow or irregular heart rhythm, usually fewer than 60 beats per minute. At this rate, the heart is unable to pump enough oxygen-rich blood to the body during normal activity or exercise, causing dizziness, fatigue, shortness of breath or fainting spells.

At that time he was implanted with a pacemaker and he was doing fine until recently when he started feeling stiffness of the body. Upon examination, some problem with the wire that connected the pacemaker to the heart was identified. Removing the wire and placing a new one could have been a risky affair. Looking at his age and condition, Dr. Hazra advised him to go for Micra® Transcatheter Pacing System.

“Unlike traditional pacemakers, Micra TPS does not require wire and a surgical “pocket” under the skin to deliver a pacing therapy. It is an advanced pacing system with the size of a large vitamin capsule weighing just 2 grams, which can be implanted entirely inside the heart through a keyhole puncture in the groin. It is cosmetically invisible and is implanted directly into the heart, providing a safe alternative to conventional pacemakers without the complications associated with cardiac wires”, said an elated Dr. P. K. Hazra.

The Micra TPS also incorporates a retrieval feature to enable retrieval of the device when possible; however, the device is designed to be left in the body. The Micra TPS is the first and only transcatheter pacing system to be approved for both 1.5 and 3 Tesla (T) full-body magnetic resonance imaging (MRI) scans, providing patients with access to the most advanced imaging diagnostic procedures available, if and when they need one.“The advent of this pacemaker technology integrated with minimally invasive procedure has come up as a new hope of life for patients”, concluded Dr. Hazra.

Abhijit Ganguly spoke to Dr Hazra about increase in the number of people being detected with cardiac diseases in India. He said “Indians are genetically more prone. The young are most vulnerable for their young habbits.Women are catching up because of socioeconomic upliftmen and male habbits. Detection at pre heart attack stage is possible now.”


PIC : Pradip Bose