采用Wu Hoak法测定动脉血中血小板的聚集率,比较家兔实验性急性心肌梗塞前后(AM1组,8只)与急性心肌梗塞并用心得安治疗(治疗组,8只)前后的血小扳聚集率的变化。发现急性心肌梗塞后5h和24h,动脉血中血小板聚集率均明显下降,但心得安治疗组下降程度较AM1组轻(P<0.05)。治疗组梗塞面积也小于AM1组(P<0.01)。 The Wu Hoak method was used to determine the platelet aggregation rate in arterial blood. Rabbits before and after experimental acute myocardial infarction (AM1 group, 8 patients) and acute myocardial infarction were compared before and after treatment with propranolol (treatment group, 8 rats). The rate of change. At 5 and 24 hours after acute myocardial infarction, the platelet aggregation rate in arterial blood was significantly decreased, but the degree of decline in propranolol treatment group was lighter than that in AM1 group (P<0.05). The infarct size in the treatment group was also smaller than that in the AM1 group (P<0.01).