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应用心尖搏动图的A波率和超声心动图的舒张晚期左室内径变化指数(VAW％),作为左室舒张晚期顺应性指标,观察其在扩张型心肌病(DCM)和陈旧性心肌梗塞(OMI)中的变化。结果:DCM和OMI(尤以左室扩大组)均有左室舒张晚期顺应性显著降低,并提示作为反映左室舒张晚期顺应性指标,A波率可能比VAW％更加敏感。DCM和OMI的EF和PEP/LVET均与对照组差异显著,表明两组兼有左室收缩功能和舒张晚期功能损害。VAW％可能对评价OMI有无左室扩大及予后有一定意义。
A wave rate and end diastolic left ventricular diameter index (VAW%) of apical beating wave were used as indices of late diastolic left ventricular end-diastolic index (Doppler echocardiography) in DCM and old myocardial infarction OMI) changes. Results: Both DCM and OMI (especially left ventricular enlargement group) had significantly lower late diastolic left ventricular compliance, suggesting that A wave rate may be more sensitive than VAW% as an indicator of late diastolic left ventricular compliance. Both EF and PEP / LVET of DCM and OMI were significantly different from the control group, indicating that both groups had both left ventricular systolic function and late diastolic dysfunction. VAW% may be useful for evaluating OMI with or without left ventricular enlargement and prognosis.