NSTE-ACS patients undergoing successful PCI ( n = 246 ) were randomized by the envelope method to tirofiban group ( n = 122 , 10 g/kg bolus within 3 min followed by 0.10-0 .15 gkg ( -1 ) min ( -1 ) for 36 h i.v. ) or control group ( n = 124 , saline i.v. for 36 h ) .