It was reported that during a transcatheter aortic valve implantation (tavi) procedure, the external pulse generator (epg) was set up for back-up pacing and rapid atrial pacing (rap), the epg timed out after one minute of not being touched and locked itself.When the screen was unlocked the rap setting was reset, and the user had to spend time reprogramming everything.The usual process in this procedure is to rapid ventricular pace for 15 seconds to lower the blood pressure to ensure accurate placement of the valve, however the epg lock out posed risk to the patient as the features had to be reprogrammed.The epg is still in use at the facility.No patient complications were reported as a result of this event.
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