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本文对冠心病56例及正常人68例用 M 型超声心动图进行左心室舒张顺应性的探讨。冠心病组 dV/dP=1.07±0.41,dV/dP·1/V=0.014±0.003与正常组 dV/dP=1.51±0.46,dV/dP·1/V=0.026±0.004相比有统计学意义(P<0.001)。冠心病组 dP/dV=1.08±0.41,dP/dV·1/P=0.098±0.020与对照组 dP/dV=0.72±0.22,dP/dV·1/P=0.090±0.028比较也有统计学意义(P<0.05～0.001)。本研究提示利用 M 型超声心动图考察左心室舒末顺应性是切实可行的,而且简便易重复。冠心病时左心室舒末压容关系已有显著改变,左心腔顺应性减退,硬度增加,并且发生于收缩功能改变之前。ΔV/ΔP,ΔP/ΔV 可以做为简便的考察心室舒张顺应性的指标。
In this paper, 56 cases of coronary heart disease and 68 cases of normal subjects with M-mode echocardiography of left ventricular diastolic compliance study. Compared with normal group, dV / dP = 1.07 ± 0.41 and dV / dP · 1 / V = 0.014 ± 0.003 in coronary heart disease group were significantly higher than dV / dP = 1.51 ± 0.46 and dV / dP · 1 / V = 0.026 ± 0.004 (P <0.001). The dP / dV = 1.08 ± 0.41 and dP / dV · 1 / P = 0.098 ± 0.020 in coronary heart disease group were also statistically significant compared with dP / dV = 0.72 ± 0.22 and dP / dV · 1 / P = 0.090 ± 0.028 in control group P <0.05 ~ 0.001). This study suggests that the use of M-mode echocardiography study of left ventricular end-diastolic compliance is feasible and easy to repeat. Coronary heart disease left ventricular end diastolic pressure relationship has been significantly changed, left ventricular compliance decreased hardness increased, and occurred before the change in contractile function. ΔV / ΔP, ΔP / ΔV can be used as a simple indicator of ventricular diastolic compliance.