my father had an angioplasty two stents have been placed though there is still one more blockade... but there has been an artery rupture during the process and subsequent internal bleeding which was checked later, he is 75 with a history of high blood pressure and diabetes. post angioplasty, he came back to consiousness after al most 18 hours for a short time... is there a possibility of brain damage.. what is the prognosis ... and wat may be the recovery like...