摘要(Abstract)：

<正> Objective The goals of this study were to examine the safety and feasibility ofdirect PTCA in elderly patients with acute myocardial infarction(AMI).Methods and Results:From January 1994 to January L998.42 cases elderlypatients were treated with direct PTCA for AMI.45 infarction related arteriesamong 40 cases patients acquired coronary artery repatency,a success rate of95.2(40/42).the time average after they suffered from thorcalgia was 5.8±3.1hours(2～11 hours),after the diagnosis of AMI was 4.0±2.4 hours(0.5～10hours).The average stenosis before direct PTCA were 86.2%±9.2%(90%～100%),after direct PTCA were 11.2%±3.2%(0%～20%).TIMI flowin infarction related arteries were 0～1 degree before direct PTCA,3 degreeafter direct PTCA.Among 40 cases patients,5 cases accompanied with leftventricular dysfunction(killip Ⅰ～Ⅱ),3 cases accompanied with cardiogenicshock,clinic symptom were obviously improved.Conclusions:Direct PTCA inelderly patients with AMI is safe and feasible,it has a lower mortality rate andbleeding rate.,in majority of elderly patients with AMI has excellent short-termoutcomes.

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