Out-patient received for tee (transesophageal echocardiogram) with cardioversion.Patient anesthetized.Tee performed without incident.Afib (atrial fibrillation) identified.Patient cardioverted with 200 joules.Remained in afib.Joules raised to 300 and during second attempt at cardioversion there was a spark from anterior pad.Staff noted electrical odor.Pads removed.Patient noted to have two purplish red areas under anterior pad, measuring approximately 3 inches at mid anterior chest and a quarter sized circular injury at the 4th intercostal space, left of sternum.Wounds dry, no blisters.Patient discharged to home after otherwise successful procedure.Manufacturer response for defibrillator, physio control (per site reporter): still in progress.
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