It seems that many patients who have been implanted with heart devices are not aware of recent recalls and do not understand the dangers they might face, this according to two new surveys. Although the surveys are small, they do indicate a lack of understanding among doctors and patients about heart disease and the devices used to treat it, said Dr. Bruce Wilkoff, director of cardiac and tachyarrhythmia devices at Cleveland Clinic Wilkoff, who is familiar with the surveys. “There are fundamental problems with even the physician’s understanding of the situation and an appropriate focus on accurate information,” Wilkoff added. One of the new surveys found that nearly one in five heart patients didn’t know about recent recalls of their devices.
Meanwhile, recent recalls of implanted defibrillators have forced some patients to have them removed. Spefically, defibrillator lead wires—especially those in the Medtronic Sprint Fidelis and St. Jude Riata devices—have fractured, perforated patient heart walls, or caused device failure. In some, these malfunctions led to additional cardiac procedures or complications and even death. Implantable defibrillators are meant to keep the heart beating regularly and to shock the heart back to its proper rhythm in the event the heart stops. A defibrillator lead is a thin wire attached to the heart wall that delivers an electrical impulse via the defibrillator. When a defibrillator wire detaches or breaks, the device will fail leaving a patient at risk for death because the device does not sense the need for a shock, is unable to deliver the shock, or delivers an unnecessary shock. If the wire perforates the heart wall, the heart can bleed into its pericardial sac causing cardiac tamponade, a lethal condition where pressure builds around the heart preventing it from beating effectively. Unfortunately, heart perforation is generally discovered after the wire has made its way through the heart wall. (more…)

