It was reported that the patient experienced chest pain, chest tightness and possible atrial fibrillation after their implantable pulse generator (ipg) was prophylactically reprogrammed in response to the advisory describing the potential for a device circuit error to occur while the device is processing an atrial-sensed event.No device malfunction was observed while the device was in use, however, the device was functioning in a mode susceptible to circuit error and was therefore reprogrammed to preclude harm to the patient.Later, the software was updated and the device was reprogrammed back to the original settings which were better suited to the patient.The device remains in use.No further patient complications have been reported as a result of this event.
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