During ablation of the left superior pulmonary vein (the 2nd ablation of the cryoablation procedure), a marked drop in blood pressure was observed in the arterial line.After reviewing intercardlac echo, it was determined that a significant amount of fluid was present in the pericardial sack.A periacrdiosentesis was performed and the patient was taken to the cvor where a tear in the roof of the left atrium was repaired.The patient is expected to make a full recovery.Additional procedure note: just after transeptal access, the patient's laryngeal mask airway (lma) was removed in favor of intubating the patient.The drop in blood pressure was noticed just after the patient was intubated.Device 2 of 3, reference mfr report: 3002648230-2014-00174 and 3007798852-2014-00016.
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