World’s Smallest Pacemaker Implanted For Regularizing Heart Rate

by Julia Samuel on  February 6, 2017 at 3:37 PM Health Watch
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Highlights
  • The Micra Transcatheter Pacing System (TPS), recently approved by the US Food and Drug Administration (FDA), is a newly designed pacemaker.
  • The pacemaker is one tenth the size of the traditional device and provides patients with the most advanced pacing technology.
  • TPS is small enough to be delivered through a catheter and implanted directly into the heart, providing a safe alternative to conventional pacemakers.
The newly developed pacemaker is about as big as a large vitamin capsule and provides the most advanced pacing technology. The pacemaker is for patients with bradycardia, a condition characterised by a slow heart rate, usually fewer than 60 beats per minute.
World’s Smallest Pacemaker Implanted For Regularizing Heart Rate
World’s Smallest Pacemaker Implanted For Regularizing Heart Rate

The Micra Transcatheter Pacing System (TPS), recently approved by the US Food and Drug Administration (FDA), 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 and is the only leadless pacemaker approved for use in the US.

Pacemakers are the most common way to treat bradycardia to help restore the heart's normal rhythm and relieve the symptoms by sending electrical impulses to the heart to increase the heart rate.

Unlike traditional pacemakers, this one does not require cardiac wires (leads) or a surgical "pocket" under the skin to deliver a pacing therapy.

When the heart rate is low, it renders the heart incapable of pumping enough oxygen-rich blood to the body during normal activity or exercise, thereby causing dizziness, fatigue, shortness of breath or fainting spells.

"The device is small enough to be delivered through a catheter and implanted directly into the heart, providing a safe alternative to conventional pacemakers without the complications associated with leads," said Schurmann.

"The device also allows us to automatically adjust pacing therapy based on a patient's activity levels and another positive is the battery can last up to 10 years," he said.

For patients who need more than one heart device, the miniaturised Micra TPS was designed with a unique feature that enables it to be permanently turned off so it can remain in the body and a new device can be implanted without risk of electrical interaction.

"This is not a complicated procedure and the first patient that we implanted is doing extremely well," said Paul Schurmann, from Houston Methodist Hospital in the US.

"I believe this gives us another tool to help save lives of patients with slow or irregular heart rhythms," added Schurmann.



Source: Medindia

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