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|St. Jude Medical Announces European CE Mark Approval and First Implant of Industry's First Quadripolar Pacing System|
System offers physicians additional pacing options and more flexibility in selecting pacing configurations during and after implant procedures
“Managing heart failure patients is often challenging and typically
involves ongoing medical management,” said Dr.
The quadripolar system, with the Quartet™ left ventricular pacing lead, features four pacing electrodes on the left ventricular lead – enabling up to 10 pacing configurations. Multiple pacing configurations provide physicians with more options to pace around scar tissue in the heart and avoid common pacing complications without the need to surgically reposition the lead.
Common pacing complications that can occur in patients implanted with a CRT system include high pacing thresholds and unintentional phrenic nerve or diaphragmatic stimulation. Patients with high pacing thresholds require significantly higher energy to pace the heart; this may reduce the device’s battery life or cause pacing to fail. Phrenic nerve and diaphragmatic stimulation occur when the electrical output from a device inadvertently activates the diaphragm muscle (either directly or via the phrenic nerve), causing hiccups upon each pacing stimulus. Both high pacing thresholds and phrenic nerve or diaphragmatic stimulation are often due to the location of the pacing lead electrode.
“The new features offered in this quadripolar system allow me to
mitigate potential complications that would otherwise require an
invasive procedure to re-place or reposition the left ventricular lead,”
In addition to multiple pacing options, the Quartet pacing lead features
“CRT has been demonstrated as an important treatment in reducing
symptoms and slowing the progression of heart failure. This new system
gives physicians more control over patient therapy by providing the
flexibility to non-invasively adjust the pacing location or
Cardiac resynchronization therapy, which can be delivered in an implantable cardioverter defibrillator (ICD) or a pacemaker, resynchronizes the beating of the heart's lower chambers (ventricles), which often beat out of sync in heart failure patients. Studies have shown that CRT can improve the quality of life for many patients with heart failure, a progressive condition in which the heart weakens and loses its ability to pump an adequate supply of blood. Approximately 23 million people worldwide are afflicted with congestive heart failure (CHF), and 2 million new cases of CHF are diagnosed each year worldwide.
The quadripolar CRT-D and Quartet pacing lead will be distributed via a
limited launched in
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