It was reported that during a competitive device upgrade procedure, while implanting the left ventricular (lv) lead, the lead could not be advanced far enough along the posterior lateral cardiac vein so it was decided to attempt via the middle cardiac vein.Contrast was delivered and a perforation of the middle cardiac vein was noted.Additional information reported that the patient experienced a pericardial effusion which resulted in tamponade.A pericardiocentesis was performed and a drain was placed.The lead was removed and the implant attempt was abandoned.The patient will be implanted with an epicardial lead at a later date.No further patient complications have been reported as a result of this event.
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