Facebook Pixel

Cardiac Device Won't Help Some Heart Failure Patients

Rate This

Heart failure patients treated with a device that synchronizes pumping in the heart's ventricles showed no improvement in exercise capacity, researchers report.

The results were presented Tuesday at a late-breaking clinical trial session at the American Heart Association's annual meeting, in Orlando, Fla., and were expected to be published in the Dec. 13 print issue of the New England Journal of Medicine.

Cardiac Resynchronization Therapy (CRT) devices are surgically implanted and deliver electrical impulses to both ventricles at the same time, making both chambers contract simultaneously and thereby improving pumping efficiency.

While current guidelines support using CRT in patients with moderate to severe heart failure, this study aimed to see if the device could benefit patients outside those recommended parameters.

For this trial, 172 heart failure patients were randomly assigned to receive treatment with CRT or not.

Those treated with CRT showed no significant improvement in exercise capacity as measured by peak oxygen consumption. Some symptoms did improve, but quality-of-life scores and results of the six-minute hall walk test did not change significantly, the researchers reported.

"There was no significant difference in the change in peak oxygen consumption between the treatment group and the control group during cardiopulmonary testing," Dr. John Beshai, study lead author and director of pacemaker and defibrillator services in the division of cardiology at the University of Chicago, said at a news conference Tuesday. "Further research is necessary," he said.

The trial was funded by St. Jude Medical, which makes the CRT device.

For more information, visit www.americanheart.org
Copyright © 2007 ScoutNews, LLC. All rights reserved.

Add a CommentComments

There are no comments yet. Be the first one and get the conversation started!

Enter the characters shown in the image.
By submitting this form, you agree to EmpowHER's terms of service and privacy policy

Heart Disease

Get Email Updates

Heart Disease Guide

Have a question? We're here to help. Ask the Community.


Health Newsletter

Receive the latest and greatest in women's health and wellness from EmpowHER - for free!