During that period, the FDA also received 370 reports of deaths in which defibrillators or critical components malfunctioned during attempts to resuscitate patients in cardiac arrest, researchers reported. The studys lead author of Beth Israel Deacones Medical Center in Boston said the growing use of emergency external defibrillators portable devices like those used by paramedics and in hospitals that shock failed hearts back into normal rhythms has resulted in thousands of saved lives.
But the data raised questions about the reliability of external defibrillators as well as how quickly users are learning about recalls.