Dr. Vengala, Hot Springs, Places World’s Smallest Pacemaker

Irregular heart rhythm is no laughing matter, but in this case at least, it is a very small thing. Hot Springs is now one of the first hospitals in Arkansas to offer the world’s smallest pacemaker for patients with bradycardia. The Micra® Transcatheter Pacing System (TPS) is a new type of heart device, approved for Medicare reimbursement, that provides patients with the most advanced pacing technology at one-tenth the size of a traditional pacemaker. The first procedure was performed by Dr. Srinivas Vengala on September 26, 2018.

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

Comparable in size to a large vitamin, physicians at CHI St Vincent Hospital Hot Springs have elected to use Medtronic’s Micra TPS because unlike traditional pacemakers, the device does not require cardiac wires (leads) or a surgical “pocket” under the skin to deliver a pacing therapy. Instead, the device is small enough to be delivered through a catheter and implanted directly into the heart with small tines, providing a safe alternative to conventional pacemakers without the complications associated with leads – all while being cosmetically invisible. The Micra TPS is also designed to automatically adjust pacing therapy based on a patient’s activity levels.

Dr. Vengala says “This technology is a great option for our population in Hot Springs. The decreased risk of infection makes this product a great option in some select patients that only require a single lead pacemaker. I am very excited to be involved in this great technology.”