Patient has severe heart failure and is post lvad placement (b)(6) 2021 with multiple complications.She underwent cardioversion for atrial fibrillation (b)(6) 2021 complicated by st.Jude/abbot biventricular icd malfunction.This included oversensing that inhibited pacing (patient was in complete heart block), and inability to program the generator to voo settings.We were able to program voo mode in the mri mode tab (but overnight, this reverted to a sensing mode).The patient underwent icd generator replacement, at which point oversensing continued to be noted.On fluoroscopy, the rv icd lead tip was found to be very close to the lvad position.A new rv icd lead was placed with resolution of both sensing and programming issues.Fda safety report id # (b)(4).
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