After cardio pulmonary bypass defibrillation was needed using internal paddles set at 5 joules.There was a delay between pushing the button and delivering joules.The first time nothing was delivered.The button was pushed three more times at 5 joules and only 1 joule was actually delivered.Was in the process of switching to another set of defibrillator handles when the patient converted.Reported issue was investigated, it was determined that the internal paddles were 17 years old and passed its sterilization cycle threshold of 100 sterilizations.Manufacturer response for defibrillator paddles, zoll (per site reporter).Paddles were beyond recommended age.Zoll provided ordering information for new paddles.
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