It was reported that the patient with this cardiac resynchronization therapy defibrillator (crt-d) entered in an intrinsic ventricular tachycardia episode.The device delivered appropriately anti tachy therapy (atp), however, this accelerated the rhythm.The device delivered seven shocks in order to end the episode, however, they were unsuccessful and the therapy got exhausted.The patient was administered medication to control the arrhythmia and was admitted for hospitalization.This device remains in service.No further adverse patient effects were reported.
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