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对31例观察组,45例对照组按美国超声心动图检查标准测定肥厚型心肌病患者心肌质量和应力指数,结果表明:(1)心肌病组心肌质量(309.5±44.7g)较对照组(203.2±41.4g)显著增加(P<0.01);(2)左室充盈压,心肌病组(17.8±3.2mmHg)亦较对照组(12.2±2.9mmHg)增高(P<0.05)。与此相反,左室壁应力指数,心肌病组(133.7±31.5mmHg),低于对照组(190.6±39.8mmHg)(P<0.01)。
The myocardial quality and stress index of hypertrophic cardiomyopathy were measured in 31 cases of observation group and 45 cases of control group according to American echocardiography. The results showed that: (1) The myocardial mass (309.5 ± 44.7g) in cardiomyopathy group was significantly higher than that in control group 203.2 ± 41.4g) (P <0.01). (2) Left ventricular filling pressure and cardiomyopathy group (17.8 ± 3.2mmHg) also increased compared with the control group (12.2 ± 2.9mmHg) (P <0.05). In contrast, the left ventricular wall stress index, cardiomyopathy group (133.7 ± 31.5 mmHg), was lower than the control group (190.6 ± 39.8 mmHg) (P <0.01).