先心病患者脉冲多普勒肺动脉血流频谱时间间期的影响因素分析  

The Determinants of the Time Intervals Derived from Pulmonary Pulsed Doppler Blood Flow Spectrum in Patients with Congenital Heart Disease

作　　者：崔炜[1] 张继增[1] 王玉芳[1] 王凤飞[1] 都本洁[1] 

机构地区：[1]河北医学院二院内科

出　　处：《心肺血管病杂志》1994年第1期17-19,共3页Journal of Cardiovascular and Pulmonary Diseases

摘　　要：对２８例先心病患者进行了脉冲多普勒超声心动图，右心导管及右室造影检查，探讨了影响脉冲多普勒肺动脉血流频谱时间间期的因素．结果表明，右室射血前期．加速时间，加速时间／右室射血前期及加速时间／右室射血期主要受右室后负荷的影响；右室射血期受右室后负荷及每搏量影响；右室射血前期／右室射血期不仅受右室后负荷影响，而且受右室收缩功能状态的影响．Twenty eight patients with congenital heart disease were examined by pulsed Doppler echocardiography,right heart catheterization and right ventricular cineangiography.The determinants of the time intervals derived from pulmonary pulsed Doppler blood spectrum were a nalyzed.The results showed that right preejection period(RPEP)and accel eration time(AT)were determined mainly by mean pulmonary arterial pressure,AT/RPEP and the ratio of AT to right ventricular ejection time(RVET),i.e.,AT/RWT, determined by pulmonary systolic arterial pressure;RVET was influenced by both mean pulmonary arterial pressure and right ventricular stroke volume; RPER/RVET was determined by not only mean pulmonary arterial pressure,but also right ventricular ejection fraction.We conclude that influential factors should be considered when pulmonary artery pressure or right ventricular ejection fraction was estimated by the above parameters.

关 键 词：多普勒 肺动脉 先天性心脏病 

分 类 号：R541.1[医药卫生—心血管疾病]