Health Discoveries in General Health News

New pacemaker for safe MRIs approved by FDA

February 9, 2011
A heart pacemaker that can be used safely when a patient is scanned by a magnetic resonance imaging (MRI) exam has been approved by the U.S. Food and Drug Administration (FDA).

Until now, patients with pacemakers have been advised not to have MRI's because the magnetic and radiofrequency fields can disrupt a pacemaker's setting or cause other malfunctions.

The Revo MRI SureScan Pacing System, made by Minnesota-based Medtronic, has a function that is turned on before a scan to prepare patients for the MRI, although it is limited to certain patients, certain parts of the body and scanning parameters.

A clinical trial on the system showed that none of the 211 patients who underwent an MRI while implanted with the device experienced a complication related to the MRI.

"Those patients who meet the parameters for the device will be able to maintain their critical cardiac therapy while benefiting from the precise diagnostic capability of an MRI," said Dr. Jeffrey Shuren, director of the FDA's Center for Devices and Radiological Health.

Thomson Reuters ranks North Shore University Hospital in Manhasset, New York, among the top 100 hospitals for cardiovascular care. The hospital is part of the North Shore-LIJ Health System.
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