It was reported that the patient deceased.Upon investigation, a ventricular tachycardia (vt) episode was found on the day of the patient's death.The patient had a slow and sustained vt episode with low amplitudes, and the amplitudes got even lower when the rhythm deteriorated to ventricular fibrillation (vf).Once the rhythm was in vf, the implantable cardioverter-defibrillator was undersensing because the vf was right at or below the device's max sensitivity.The physician was informed that the device had worked appropriately with how the device was programmed.The physician was thankful for the follow up and noted the patient had bad ischemic cardiomyopathy.No additional information was reported.
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