Features April 2011 Issue

FDA Approves First Pacemaker System Safe for Magnetic Resonance Imaging

Traditional cardiac devices have been at risk of malfunctioning or overheating with MRIs.

Nearly two million Americans have pacemakers, devices that use electrical charges to help keep the heart beating in a synchronized rhythm, and many of those heart patients will develop cancer or another medical conditions that requires a magnetic resonance imaging exam (MRI). However, the strong magnetic fields of MRI can disrupt the pacemakerís functioning and cause pacemaker wires to overheat. But the U.S. Food and Drug Administration recently approved the first MRI-safe pacemaker. Medtronicís REVO MRI pacemaker system is approved for rate-adaptive pacing and dual-chamber pacing.

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