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目的探讨老年人心肌梗死晚期踏车运动试验有关变量与长期预后的关系。方法对４０例老年心肌梗死患者进行次极量踏车运动试验，踏车运动试验距梗死的平均时间３个月。在５～７年的随访中，采用Ｃｏｘ模型进行预后分析。结果Ｃｏｘ单因素分析示运动诱发的ＳＴ段压低、ＳＴ段压低的导联数、运动中的高峰心率、心率血压双乘积、血压增值、年龄等与心脏意外有关（均为Ｐ＜０．０５），运动持续时间、终止负荷、做功量、运动诱发的心绞痛、Ｒ波振幅阳性、ＱＴｃ延长等与心脏意外无关；Ｃｏｘ多因素分析示年龄和血压增值是预测远期心脏意外的重要变量。结论老年人心肌梗死晚期进行踏车运动试验是预测远期心脏意外的重要方法。
Objective To investigate the relationship between long-term prognosis and related variables of treadmill exercise test in elderly patients with advanced myocardial infarction. Methods 40 cases of elderly patients with myocardial infarction submaximal treadmill exercise test treadmill exercise test from the average time of 3 months. At 5 to 7 years of follow-up, a Cox model was used for prognostic analysis. Results Cox univariate analysis showed that exercise-induced ST segment depression, ST segment depression lead, peak exercise heart rate, heart rate blood pressure double product, blood pressure increase, age and other cardiac accidents (P <0.05) , Exercise duration, termination load, work volume, exercise-induced angina pectoris, R wave amplitude positive, QTc prolongation and other cardiac accidents have nothing to do; Cox multivariate analysis showed age and blood pressure increase is an important variable to predict long-term cardiac accidents. Conclusion Elderly patients with treadmill exercise test late myocardial infarction is an important method to predict long-term cardiac accident.