孕妇体位改变对胎儿脐动脉血流速度影响的研究  

STUDY ON REGULATING EFFECT OF BODY-POSITION ON UMBILICAL BLOOD FLOW VELOCITY OF THE GRAVIDA

作　　者：张再青[1] 康汉丽[1] 李法升[1] 

机构地区：[1]深圳市第二人民医院

出　　处：《现代医院》2010年第7期11-12,共2页Modern Hospitals

基　　金：深圳市科技计划项目立项课题(编号:200903045)

摘　　要：目的探讨妊娠晚期孕妇体位改变对脐动脉血流速度调节的影响。方法选择妊娠28周以上单胎孕妇105例，应用MFM—OBS型产科综合诊断监护系统（脐血流），对孕妇平卧位、左侧卧位、右侧卧住及坐位时进行脐动脉血流速度测定，以平卧位作基础，采用自身对照t检验方法分析体位改变后S／D值的变化。结果大于标准值下限者53例改变体位后S／D值显著下降（P〈0．01），小于标准值下限者52例吸改变体位后S／D值显著升高（P〈0．01）。结论孕妇侧卧位或坐位，有利于胎儿脐动脉血流供应，并且其调节方式为双向性，机理有待于进一步研究。Objective To investigate the regulating function of the body - position on umbilical blood flow velocity of the late pregnant women. Methods 105 pregnant women in late trimester of pregnancy were enrolled, whose umbilical blood flow velocity was measured at horizontal position, left - lateral position, right - lateral position and sitting position separately by Comprehensive diagnosis of obstetric monitoring system（ MFM - OBS）. The associa- tion of S/D with the body - position was compared by self - control t test. Results After the alterations of the body - position ,the S/D of 53 women whose umbilical blood flow velocity were higher than upper limit of the reference value decreased dramatically（p 〈 0. 01 ）, and the S/D of 52 women whose umbilical blood flow velocity were lower than low- er limit of the reference value increased dramatically（p 〈 0. 01 ） Conclusions Flow velocity of the umbilical artery was consistently in close correlation with the pregnant women＇ s body - position. The mechanism of the two - way regu- lative effect needs further investigations.

关 键 词：妊娠晚期孕妇体位脐动脉血流S/D(脐动脉血流收缩末期峰值/舒张末期峰值) 

分 类 号：R714.5[医药卫生—妇产科学]