Related manufacturer report number: 2017865-2020-03311, 2017865-2020-03314.It was reported that the patient presented for a follow up in clinic on (b)(6) 2020 with no complaints.The patient¿s spouse reported the patient was not feeling very well days after.No specific symptoms were provided.The patient subsequently died on (b)(6), 2020.Review of the available data on (b)(6) 2020 revealed alerts on the fortify assura icd for ¿possible high voltage lead issue¿ and ¿possible high voltage circuit damage detected.¿ due to these alerts, therapy was not delivered.¿possible high voltage lead issue,¿ also known as an ocd (over current detection) safety check is an alert triggered when excess current is detected in the high voltage (hv) circuitry during hv charge and delivery into a low impedance load.¿possible high voltage circuit damage detected,¿ or shorted output stage detection (sosd)is an alert triggered when during a safety check, the device detects potential damage to a high voltage circuit during high voltage charging of the capacitors and aborts all subsequent requests for high voltage charging.¿high voltage lead impedance (hvli) was out of range¿ (< 10 ohms) or low was also noted.An episode from (b)(6) 2020 at 3:31 am notes the device delivered an 800 v shock, but this did not convert the ventricular fibrillation (vf).The impedance from this shock was < 10 ohms.The device then redetected the vf but because of the sosd alert, the device was unable to deliver additional therapy.The cause of death was noted by the physician to be ventricular fibrillation although a death certificate was not available.It was noted by the provider that atrial lead egms had revealed low atrial lead noise with some auto-mode switching but this was not considered a problem.The atrial chamber is not a life support/sustaining chamber.The device and leads were not available for lab analysis and remained in the deceased patient.Further testing was therefore not available.
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