彩色M型多普勒超声评价肾移植病人的左室舒张功能

Evaluation of the left ventricular diastolic function in patients with kidney transplantation by color M-mode Doppler echocardiography

目的应用彩色M型多普勒超声心动图测量舒张早期左室内血流传播速度(Vp),评价肾移植病人的左室舒张功能。方法肾移植组105例(50岁以下者71例;50～60岁者23例;60岁以上者11例)。正常对照组123例(50岁以下者69例;50～60岁者36例;60岁以上者18例)。取心尖四腔或二腔心平面测量左室内血流传播速度(Vp),二尖瓣和肺静脉血流曲线。结果肾移植病人的Vp值较正常人降低(P<0.05),血流形态异常。结论应用彩色M型多普勒超声心动图测量舒张早期左室内血流传播速度,不受心脏负荷及年龄的影响,作为评价肾移植病人左室舒张功能的指标有临床意义。

Objective To evaluate the left ventricular diastolic function in the patients with kidney transplantation. The propagation velocity （Vp） of early flow into the left ventricular cavity was measured by color M-mode Doppler echocardiogaphy. Methods There were 105 patients with kidney transplantation （aged 〈 50 years in 71 cases; 50-60 years 23; 60 years 11）, and 123 normal objects （aged〈50 years in 69 cases; 50-60 years 36; 60 years 18） in this study. Transmitral and pulmonary venous flow curve, and Vp were measured in four or two chamber view of the apex. Results Vp value was decreased （P〈0.05） and blood flow pattern was abnormal in patients with kidney transplantation. Conclusion Vp was not affected by cardiac load and age in color M-mode Doppler. It may have clinical significance as an index in evaluating left ventricular diastolic function of patients with kidney transplantation.