It was reported that during a cryo ablation procedure, once all four pulmonary veins (pv) had been treated, the patients blood pressure dropped suddenly.A pericardial effusion was observed via echocardiogram.A pericardiocentesis was performed to drain the blood but it was not successful.The patient was taken to the operating room for further intervention and in doing this, a perforation was discovered in the left atrial appendage.The case was completed with cryo.No further patient complications have been reported as a result of this event.
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