It was reported that in the final stages of the cardiac resynchronization therapy defibrillator (crt-d) replacement procedure, after successful placement and defibrillation threshold testing, gradual hypoxia and hypotension were observed.Medications were given for reversal and subsequent cardiopulmonary resuscitation (cpr) and intubation were required.Blood pressure and oxygenation were restored and the patient had a return of spontaneous circulation.The replacement procedure was completed and the crt-d remains in use however the patient required intensive care unit (icu) monitoring.No further patient complications have been reported as a result of this event.
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