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目的 评价血栓弹力图在老年脑梗死患者凝血状态监测中的临床意义.方法 选取300例老年脑梗死患者作为观察组, 300 例同期老年体检者作为对照组, 对所有患者进行常规凝血检测和血栓弹力图检测.结果 两组常规凝血指标之间比较差异无统计学意义(P >0.05).与对照组相比, 观察组反应时间(R 值)和凝血酶形成时间(K 值)均明显缩短(P <0.05);观察组血栓最大弹力度(MA值) 、凝血指数(CI值)和凝固角(Angle角)均明显增大(P <0.05, P 0.05).The reaction time (R) and pro-thrombin formation time (K) in the observation group were significantly shorten than those in the control group (P<0.05).The maximum amplitude (MA), the coagulation index (CI) and the solidification angle (Angle) in the observation group were greater than those in the control group (P<0.05, P<0.01).164 cases in the observation group presented in a hypercoagulable state.Clotting factor activity was high in 28 cases.Platelet activity increased in 70 cases.Fibrinogen activity increased in 44 cases.Platelet and fibrinogen activity were high in 22 cases.Conclusion Thrombelastogram can not only reflect hypercoagulable state in patients with acute cerebral infarction, but also may indicate the cause of hypercoagulability.