产前超声心动图诊断胎儿Ⅰ度房室传导阻滞  

Prenatal echocardiographic diagnosis of fetal first-degree atrioventricular block

作　　者：王鸿[1] 耿丹明[1] 李慧忠[1] 涂学军[1] 王玉新[1] 熊华强[1] 

机构地区：[1]南京军区福州总医院超声诊断科,福建福州350025

出　　处：《中国医学影像技术》2010年第7期1325-1327,共3页Chinese Journal of Medical Imaging Technology

基　　金：福建省科技重点课题基金资助(2009I0021);南京军区面上课题2007(07M092)

摘　　要：目的探讨产前应用多普勒超声技术测量胎儿心脏机械性PR间期并诊断胎儿Ⅰ度房室传导阻滞的临床意义。方法选取经胎儿超声心动图检测出的100胎心脏疾病胎儿(疾病组),应用彩色多普勒引导脉冲多普勒取样容积记录左心室流入道及流出道血流频谱,测量PR间期及VA间期,并与120名正常胎儿(正常对照组)比较。结果疾病组胎儿中先天性心脏病83胎、心律失常13胎、双胎输血综合征4胎,其中多普勒超声测量PR间期延长(131～220ms)75胎。疾病组的PR、VA间期与正常对照组比较,差异有统计学意义(P<0.001)。结论多普勒超声心动图技术可以更好地获得房室传导时间的定位取样,且简便易行,对测量胎儿心脏机械性PR间期并诊断胎儿Ⅰ度房室传导阻滞有重要的临床价值。Objective To investigate the mechanical PR interval with prenatal Doppler ultrasound,and to explore the clinical value of diagnosing first-degree atrioventricular block in fetus. Methods One hundred fetuses with heart abnormalities （disease group） were detected with fetal echocardiography,and compared with 120 normal fetuses （control group）. Guided by color Doppler,flow spectra of left ventricular inflow tract/outflow tract were measured with pulsed-wave Doppler. PR and VA interval were measured simultaneously. Results Eighty-three fetuses were diagnosed as congenital heart disease （CHD）,13 fetuses as arrhythmia,4 fetuses as twin transfusion syndrome in the disease group. PR interval prolongation （131—220 ms） was measured in 75 fetuses. There was statistical significant different in PR and VA interval between disease group and control group （P〈0.001）. Conclusion Doppler echocardiography can provide easier and better access to location sampling of atrioventricular conduction time. There is significant clinical value of Doppler echocardiography for the assessment on first-degree atrioventricular block.

关 键 词：心律失常 超声检查 产前 胎儿心脏 房室传导阻滞 

分 类 号：R714.53[医药卫生—妇产科学] R445.1[医药卫生—临床医学]