单胎和双胎妊娠女性盆底肌形态特征的三维盆底超声观察比较  

Comparison of pelvic floor morphological characteristics of singleton pregnancy and twin pregnancy by three-dimensional sonography

作　　者：吴海燕[1] 尹慧[1] 向双[1] 张伟[1] 龚心德[1] 熊淑媛[2] 王莹利[2] 李文红[2] 

机构地区：[1]湖北医药学院附属东风总医院超声科,湖北十堰442000 [2]湖北医药学院附属东风总医院妇科,湖北十堰442000

出　　处：《检验医学与临床》2017年第9期1246-1247,1250,共3页Laboratory Medicine and Clinic

基　　金：湖北省教育厅指导性项目(B2014064)

摘　　要：目的经会阴三维超声检查评估比较单胎和双胎妊娠女性盆底肌形态特征。方法采用横断面研究的方法,选择2014年1月至2015年12月60例未经产的妊娠女性作为研究对象,其中,单胎妊娠女性34例,双胎妊娠女性26例。在第27~37孕周对所有孕妇进行三维超声检查,对所有研究对象进行静息状态、Valsalva动作、盆底肌收缩3种状态下的三维超声评估,分别测量矢状径、冠状径和肛提肌裂孔面积,并进行统计学分析。结果静息状态、Valsalva动作以及盆底肌收缩3种状态下,单胎妊娠女性的矢状径平均值分别为(5.2±0.8)、(5.7±0.5)、(4.5±0.7)cm,分别与双胎妊娠女性3种状态下对应值相比,差异均无统计学意义(P>0.05);3种状态下,单胎妊娠女性冠状径平均值分别为(2.6±0.3)、(4.1±0.5)、(2.2±0.5)cm,其中静息状态和盆底肌收缩过程中,单胎妊娠和双胎妊娠女性冠状径差异有统计学意义(P<0.05);此外在3种状态下,单胎妊娠和双胎妊娠女性肛提肌裂孔面积比较,差异均有统计学意义(P<0.05)。结论单胎妊娠和双胎妊娠女性三维盆底超声呈现明显差异,双胎妊娠女性在过程中骨盆托经历了较大的改变。Objective To assess and compare the pelvic floor morphological characteristics of singleton pregnancy and twin pregnancy by transperineal three-dimensional sonography.Methods By a cross-sectional study,60 cases were randomly selected from January 2014 to December 2015 from the nulliparous pregnant women accepting antenatal care in our hospital as the research objects,including 34 cases with singleton pregnancy and 26 cases with twin pregnancy.Between 27th and 37th gestational weeks,all pregnant women underwent transperineal three-dimensional sonography examination.Sagittal diameters,coronal diameters and levator hiatus area were measured by three-dimensional sonography assessment at the time of quiescent condition,valsalva maneuver and pelvic floor contraction.Results The mean sagittal diameters of women with singleton pregnancy at the time of quiescent condition,valsalva maneuver and during pelvic floor contraction were 5.2,5.7 and 4.5 cm,respectively.Compared with the corresponding values of pregnant women with twin pregnancy under three conditions,there were no statistical differences （P〉0.05）.Under three conditions,the mean coronal diameters of women with singleton pregnancy were 3.8,4.1 and 3.6 cm,in which,there were significantly difference between coronal diameters of women with singleton pregnancy and with twin pregnancy at rest and during pelvic floor contraction （P〈0.05）,in addition,differences of the mean levator hiatus area of women with singleton pregnancy and with twin pregnancy （14.6 vs.16.0 cm2,16.7 vs.18.5cm2,11.5 vs.12.7 cm2） were statistically significance（P〈0.05）.Conclusion Three-dimensional sonography of women with twin pregnancy have obvious difference with singleton pregnancy,which suggest that pelvic support of women with twin pregnancy undergo larger changes.

关 键 词：单胎妊娠 双胎妊娠 盆底肌 三维超声 

分 类 号：R169.41[医药卫生—公共卫生与预防医学]