Skip to Content

Published on July 17, 2014

St. Cloud Hospital Announces First Implant of World’s Smallest, Minimally Invasive Cardiac Pacemaker

St. Cloud, Minn. – The CentraCare Heart & Vascular Center at St. Cloud Hospital today announced its first implant of the world’s smallest pacemaker: the Medtronic Micra™ Transcatheter Pacing System (TPS). The device was implanted as part of the global pivotal clinical trial. 

One-tenth the size of a conventional pacemaker, and comparable in size to a large vitamin, the Micra TPS pacemaker is delivered directly into the heart through a catheter inserted in the femoral vein. Once positioned, the pacemaker is securely attached to the heart wall and can be repositioned or retrieved if needed. The miniature device does not require the use of wires, known as “leads,” to connect to the heart. Attached to the heart via small tines, the pacemaker delivers electrical impulses that pace the heart through an electrode at the end of the device.

“This miniaturized technology is designed to provide patients with the advanced pacing technology of traditional pacemakers via a minimally invasive approach,” said electrophysiologist John Schoenhard, MD, PhD, CentraCare Heart & Vascular Center, who implanted the Micra transcatheter pacemaker. “We are proud that St. Cloud Hospital was selected among an elite group of institutions to take part in this clinical trial. If positive, the results of the trial could potentially benefit the more than one million people globally who receive pacemakers each year.”

In contrast to current pacemaker implant procedures, the Micra TPS implant does not require a surgical incision in the chest and the creation of a “pocket” under the skin. This eliminates a potential source of complications and any visible sign of the device. The Medtronic Micra TPS is an investigational device worldwide.

The CentraCare Heart & Vascular Center at St. Cloud Hospital is a comprehensive heart center dedicated to the prevention, discovery and management of heart disease. It offers a full range of heart services and is one of the few sites in Minnesota with a heart research program.

Media Contact

Communications Department

320-251-2700, ext. 74980

CentraCare's My Healthy News

Get the latest news on the health topics that matter most to you — delivered straight to your inbox every month.

Sign up for our newsletter