St Jude Medical Warns of ‘Rare’ Battery Issue in Some Heart Devices

Cardiac devices manufacturer St Jude Medical (STJ) warned that some of its implantable cardiac defibrillator and cardiac resynchronization therapy defibrillator devices may have the potential to experience premature battery depletion on Tuesday.

In a statement issued on the company’s website, the maker of heart devices said that “an analysis found that some devices manufactured prior to May 23, 2015 contain batteries which may run out of energy earlier than expected”. It went on to say that this is a “rare occurrence” quantifying this as a probability of “0.21%”.

The company’s devices are designed to provide a vibratory alert when a battery is nearing depletion. It said that premature battery depletion can be detected during doctor office visits and through remote monitoring.

None of the company’s pacemakers are affected by the battery issue as they are powered by low voltage batteries and St Jude stated that its advisory is “limited to a subset of our high voltage devices”.

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