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采用心机械图的方法在健康人、高血压及冠心病患者中进行心房收缩时间间期(ASTI)测量。结果显示,受心室顺应性变化的影响,健康人的我ASTI随增龄发生改变,高血压及冠心病患者的ASTI明显异常于同龄健康人。ASTI的改变表现为,随心室舒张期顺应性下降,APEP缩短、AWT延长,APEP/AET比值降低。提示ASTI是一项反映心室舒张功能变化的敏感指标。同时对受检者左室收缩功能的检测还表明,高血压和冠心病的心室舒张功能异常是先于收缩功能受损的早期改变。
The atrial systolic time interval (ASTI) measurement was performed in patients with healthy people, hypertension and coronary heart disease by the method of cardiogram. The results showed that, due to changes in ventricular compliance, I ASTI of healthy people changes with age, hypertension and coronary heart disease in patients with ASTI was significantly abnormal in healthy people of the same age. Changes in ASTI performance, as the ventricular diastolic compliance decreased, APEP shortened, AWT prolonged, APEP / AET ratio decreased. Tip ASTI is a sensitive indicator of changes in ventricular diastolic function. At the same time on the subject’s examination of left ventricular systolic function also showed that hypertension and coronary heart disease ventricular diastolic dysfunction is prior to the early changes of impaired contractile function.