During a premature ventricular contraction (pvc) ablation procedure, a pericardial effusion occurred.Towards the end of the procedure, while in voxel mode in the left ventricle, the ablation catheter perforated through the posterior floor.Contact force never reached greater than 11g.The patient then became hypotensive and a pericardial effusion was visualized on ice.A pericardiocentesis was performed to stabilize the patient.The patient is currently in stable condition and has been discharged.It was thought that the use of the ensite x system in voxel mode contributed to the event.
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