左房内径变化鉴别左室舒张功能假性正常  

Differentiation of pseudo normal left ventricular diastolic function using left atrial sizing

作　　者：严萍萍[1] 张文芳[1] 孙彬[1] 韩自勋[1] 李勇[1] 范维琥[1] 

机构地区：[1]上海复旦大学附属华山医院心内科,200040

出　　处：《临床超声医学杂志》2005年第2期92-93,共2页Journal of Clinical Ultrasound in Medicine

摘　　要：目的　二维超声心动图鉴别左室舒张功能假性正常。方法　入选3 0例正常人和70例左室舒张功能减退患者,用脉冲多普勒技术分别测量二尖瓣口和肺静脉血流频谱,同时用二维超声心动图测量左房收缩末内径(LAs)和左房舒张末内径(LAd)。结果　左室舒张功能减退组LAd/LAs明显高于对照组(P <0 .0 5 )。正常组、早期舒张功能减退组、假性正常组、限制性充盈组LAd/LAs分别为0 .68±0 .0 4、0 .74±0 .0 5、0 .83±0 .0 5、0 .88±0 .0 4。与正常组相比,早期舒张功能减退组LAd/LAs增高,但差异没有显著性(P >0 .0 5 ) ,假性正常组、限制性充盈组LAd/LAs显著高于正常对照组(P <0 .0 1)。结论　LAd/LAs比值可鉴别左室舒张功能假性正常,在临床工作中是一种简单实用的方法。Objective To identify diastolic dysfunction of pseudonormal mitral flow pattern by two-dimensional echocardiography.Methods Seventy patients with diastolic dysfunction and thirty healthy subjects were included in this study. The mitral inflow and pulmonary venous flow were measured by spectra Doppler. Parasternal long-axis view was used to measure LA diameter.Results LAd/LAs was significantly higher in patients with diastolic dysfunction than that in control group (P<0.05). LAd/LAs ratios in the control group, the E<A group, the pseudo normal group and the restrictive pattern group were 0.68±0.04, 0.74±0.05, 0.83±0.05, 0.88±0.04, respectively. There was no significant difference in LAd/LAs between the control group and the E<A group (P>0.05). LAd/LAs in the pseudo normal and restrictive pattern groups was significantly higher than that in the control group (P<0.01).Conclusions LAd/LAs ratio helps to differentiate the normal and pseudo normal mitral flow pattern. It is a practical in clinical.

关 键 词：舒张功能假性正常 左房内径 左室舒张功能减退 二维超声心动图 化鉴别 肺静脉血流频谱 脉冲多普勒技术 限制性充盈 0.05 LAs LAD 正常对照组 正常组 二尖瓣口 临床工作 显著性 测量 早期 

分 类 号：R542.2[医药卫生—心血管疾病] R544.1[医药卫生—内科学]