It was reported that during the implant procedure after connecting the leads to the pulse generator, all leads were tested and were within normal limit.The patient was then externally cardioverted to return to normal sinus rhythm from atrial fibrillation.The leads were again tested, and it was noted that during atrial pacing it was capturing both the right atrium and left ventricle.The left ventricular impedance was lower through device compared to when tested with the pacemaker system analyzer.It was confirmed the leads were in the correct ports and had not dislodged.The leads were disconnected from the device and tested; all leads had appropriate capture and sensing.The device was not used, and a new device was successfully implanted.The patient was in stable condition throughout the procedure.
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The reported event of output anomalies was confirmed.Device was received with battery voltage at bol level.Device functionality was tested in various settings and found a pacing output anomaly where output pulses were delivering in both ra and lv channels when only one of them was configured to pace, as reported in the field.Testing of the internal components and circuitry, indicated that the reported output anomalies are consistent with integrated circuit anomaly.
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