术前 Aspirin 72 hours before Ticlopidine (500 mg/d) or Clopidogrel (75 mg/d) 24 hours before 术中 Heparin 70-100 I.U./Kg (5.000 I.U.), ACT 275-300 sec. Atropine (1mg) before balloon inflation 术后 Ticlopidine (500 mg/d) or Clopidogrel (75...