The bleeding and complications due to Tirofiban was higher in high risk group: 9%gross hematuria, .% melena,9.% gastric 使用国产替罗非班观察中,高危组并发症及出血比例较高,血尿9%,黑粪症 .%,胃溃疡大出血例(9.%),脑出血例(.8%),但与其他两组比较没有统计学差异;