It was reported that, this implantable cardioverter defibrillator (icd) system undersensed a right ventricular (rv) signal on the rv lead, leading into overpacing.Subsequently, pacemaker mediated tachycardia (pmt) was triggered and the rhythm was accelerated.Technical services (ts) recommended to reprogram the sensitivity, changing v blank after a pacing to smart from nominal 65 ms.Additionally, noisy signals were noted on the rv and right atrial (ra) channel.Ts discussed the signal could have been a short episode of external emi causing this noise.This icd remains in service.No adverse patient effects were reported.
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