Related manufacturing reference number: 2017865-2023-11454.It was reported that the implantable cardioverter defibrillator (icd) exhibited high pacing impedance and loss of capture on the ventricular channel.The physician attempted to reconnect the right ventricular lead to the header with no change.The lead exhibited normal electrical values through the patient system analyzer (psa).The physician attempted to reposition the lead but the helix failed to extend.The lead was explanted and replaced.When the physician plugged the new lead into the header, there was again poor parameters, high pacing impedance and no sensing.The icd was then explanted and replaced.Acceptable electrical parameters were received.The patient was in stable condition.
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The reported event of capture, sensing, and impedance anomaly could not be confirmed.Final analysis found visual inspection of the device did not reveal any anomaly that could contribute to the reported event.Telemetry, impedance, sensing, pacing and high voltage (hv) output functions of the device were tested and found to be normal.
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