It was reported that vessel perforation occurred.The 75% stenosed target lesion was located in the severely tortuous and severely calcified left main artery to proximal left anterior descending (lad) artery.A 20 x 4.00 promus premier¿ drug eluting stent was advanced to treat the lesion.When the stent was placed, a vessel perforation occurred.After insertion of an intra-aortic balloon pump (iabp), hemostasis was performed with a balloon and at the same time, a pericardial puncture was performed.Subsequently, a ¿cover stent¿ was then deployed and the procedure was completed.The next day, the iabp was removed.Eight days post procedure, the patient was discharged.The patient's status was stable.It was noted intravenous ultrasound (ivus) had not been performed prior to stent placement, and choosing an oversized stent had been suspected as the cause of the event.
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