Boston Scientific Corp. has issued an advisory warning physicians that some models of its implanted heart defibrillators have an observed failure rate of one in 670 devices.  Approximately 34,000 patients have the implanted defibrillators, which were manufactured in 2006 and 2007.  The devices are no longer sold.

The company recommended that doctors perform routine follow-ups with patients and remind patients to contact their doctors or go to the emergency room immediately if they hear beeping tones from the device.

For the full story, go to the Boston Globe.