During an in-clinic follow up, oversensing due to noise which resulted in the administration of inappropriate high voltage therapy was noted on the right ventricular (rv) lead.Moreover, high capture threshold, high pacing impedance, and low sensing threshold were also noted on the rv lead.Technical support was contacted and it was determined that there was also a signal present after the detection of crosstalk and pacing signals which possibly indicates rv loss of capture.It was suspected that the cause of the event was due to lead insulation damage.However, no diagnostic imaging was conducted to confirm the supposition; nor was the alleged cause confirmed during the rv lead revision procedure.The rv lead was capped and replaced to resolve the event.The patient was stable with no consequences.
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