Related manufacturing reference number: 2017865-2023-22425.Related manufacturing reference number: 2017865-2023-22428.It was reported that the patient presented to the operating room for a lead revision.It was noted with an x-ray that the right ventricular (rv) and right atrial (ra) leads had reduced slack.Once the physician opened the pocket, it was noted that the implantable cardioverter defibrillator (icd) had migrated.The physician attempted to remove the rv lead from the icd port and noted the set screw was difficult to remove.The screw eventually loosened and the lead was removed.It was then noted that the hex wrench would not engage with the set screw to tighten.It was believed the set screw was stripped.The icd, rv lead and ra lead were explanted and replaced.The patient was in stable condition.
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The reported event of setscrew anomaly was confirmed.Final analysis found the device was above elective replacement indicator (eri) upon receipt.Analysis revealed the right ventricular set screw was stripped and contained septum material inside the hex cavity.This material inside the hex cavity prevented full insertion of the torque driver.The set screw anomaly was consistent with having occurred during the procedure.Telemetry, impedance, sensing, pacing and high voltage (hv) output functions of the device were tested and found to be normal.
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