News | September 01, 2008

Initial Data Presented on World’s First MRI-Safe Pacemaker

September 2, 2008 - Initial safety and efficacy data, presented at the European Society of Cardiology Congress in Munich, Germany on the Medtronic Inc. investigational EnRhythm MRI SureScan Pacing System shows promise for a potential solution for patients receiving their first pacemaker and needing an MRI scan.

Results presented showed no MRI-related complications, and no arrhythmia or asystole (absence of electrical activity in the heart) during MRI scans conducted on patients as part of a worldwide clinical study. Additionally, other study endpoints showing that the heart responded appropriately to the level of electrical stimulation it received from the device were met. A small number of patients experienced implant complications consistent with rates for other pacemaker implant procedures, but none were related to the MRI technology.

The EnRhythm MRI SureScan System Clinical Trial is a prospective, randomized, controlled, unblinded, multi-center study, involving 470 individuals, eligibility is based on the clinical indication for pacemaker implantation and a willingness and ability to undergo elective MRI scanning. All patients in the trial will receive an investigational EnRhythm MRI SureScan pacing system (consisting of the dual chamber EnRhythm MRI SureScan pacemaker and CapSureFix MRI SureScan pacing leads, Model 5086MRI), and two-thirds of the participants will receive MRI scans; the first MRI scans will occur approximately two to three months after device implant. The study will compare the electrical system performance, among patients in both groups. In addition, the study will assess the MRI-related complication rates in the month following the MRI scans. The expected study duration and follow up time is approximately 30 months.

“MRI is unmatched and irreplaceable in the diagnosis of cancer and neurological disorders,” said Dr. Torsten Sommer, chief of the cardiovascular section of the radiology department, University of Bonn, Germany, and European lead radiology investigator for the clinical trial. “And for investigation of the brain and spinal cord, there is simply no suitable alternative in most cases. As the necessity for MRI grows, it is critical to introduce a solution that allows pacemaker patients safe access to MRI.”

“While the trial is ongoing, we’ve observed no lead-performance issues or unexpected MRI effects in this patient group to date,” he added.

The clinical trial will include up to 470 patients at 53 centers in Europe, the Middle East, Canada and the U.S.

Approximately 2 million Europeans have implanted pacemakers, but these patients are prohibited from receiving magnetic resonance imaging (MRI) scans, a widely practiced diagnostic method for many common diseases and conditions, because their device could interact with MRI machines, potentially affecting the device or patient safety. According to Medtronic estimates, up to 50 percent of patients worldwide with implanted cardiac devices are expected to need an MRI scan during the lifetime of their devices.

For more information: www.medtronic.com

Related Content

Ohio State Researchers Prove Human Heart's 'Battery' Has Multiple Backups
News | EP Lab| July 27, 2017
July 27, 2017 — There is good news when it comes to the heart’s sinoatrial node (SAN), the body’s natural...
Biotronik Launches DX Technology for U.S. Heart Failure Patients
News | Cardiac Resynchronization Therapy Devices (CRT)| July 21, 2017
Biotronik announced U.S. Food and Drug Administration (FDA) approval and availability of the Intica DX and Intica...
Medtronic Reactive ATP Therapy Slows Progression of Atrial Fibrillation in Real-World Population
News | Atrial Fibrillation| July 03, 2017
Medtronic recently announced that its Reactive ATP therapy slows the progression of atrial fibrillation (AF) in...
Sponsored Content | Videos | Cardiovascular Ultrasound| June 29, 2017
Leyla Elif Sade, M.D., MESC, professor of cardiology at Başkent University, Ankara, Turkey, discusses use of echo for
Biosense webster multielectrode balloon RF ablation catheter

The Biosense Webster multi-electrode balloon RF ablation catheter. Each electrode can have varied power settings to avoid damage to underlying tissues like the esophagus. 

Feature | EP Lab| June 22, 2017 | Dave Fornell
Electrophysiology (EP) technology has been advancing rapidly the past few years with new ablation tools to improve...
Pacemakers and Other Cardiac Devices Can Help Solve Forensic Cases
News | Pacemakers| June 20, 2017
Pacemakers and other cardiac devices can help solve forensic cases, according to a study presented at the European...
Sponsored Content | Videos | EP Lab| May 26, 2017
DAIC Editor Dave Fornell takes a tour of some of the most innovative new electrophysiology (EP) technology at the 201
Sponsored Content | Videos | Leads Implantable Devices| May 25, 2017
Bruce Wilkoff, M.D., director of cardiac pacing and tachyarrhythmia devices at Cleveland Clinic, discusses advancemen
Overlay Init