It was reported that the patient left ventricular (lv) lead showed a yellow alert for intrinsic amplitude out-of-range measurements.Technical services (ts) reviewed the case and discussed dally measurements collection, ts could not determine what the device saw and grabbed for this measurement.Could have been a premature atrial and/or ventricular contractions.In addition, ts noticed that the patient previously had an episode of right ventricular (rv) lead oversenslng with 2 seconds of pacing inhibition.It was recommended to inquire the patient if any procedures were being performed at the time of this episode.If no electromagnetic interference (emi) is the reason of this, lead integrity evaluations should be performed.Due to the rv longevity, this could be the beginning of an insulation issue.Further information was received indicating that evaluations were performed, but no integrity issues could be confirmed on the leads.This rv lead remains in service and no adverse patient effects were reported.This report reflects information received by fda in the form of a notification per 803.22 (b)(2).
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