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妊娠期子宫瘢痕情况与剖宫产术后再次妊娠孕妇发生子宫破裂的相关性

Correlation between uterine scar condition and uterine rupture for pregnancy women after previous cesarean section
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摘要 目的探讨剖宫产术后再次妊娠孕妇妊娠早期剖宫产术后子宫瘢痕的厚度、剖宫产术后子宫瘢痕憩室(CSD)与发生子宫破裂的关系,并定性观察妊娠晚期子宫下段(LUS)肌层的连续性及测量其厚度以预测剖宫产术后再次妊娠孕妇发生子宫破裂的价值.方法收集2015年1月至2016年3月在北京大学第一医院进行规律产前检查并分娩、既往有剖宫产术史的孕妇154例,超声测量其妊娠早期剖宫产术后子宫瘢痕的厚度(横切厚度及纵切厚度)、CSD大小及妊娠晚期LUS肌层的厚度(纵切厚度)及定性观察其连续性.根据妊娠结局将孕妇分为两组:子宫未破裂组(自然分娩或剖宫产术中未发现子宫破裂者)134例及子宫破裂组(剖宫产术中发现子宫不完全性破裂或妊娠期子宫破裂)20例,比较两组孕妇妊娠早期LUS瘢痕最薄处的肌层厚度,比较妊娠晚期定性观察LUS肌层连续性与测量LUS肌层厚度以评价子宫破裂的敏感度及特异度.结果134例子宫未破裂组孕妇中,自然分娩者6例、行剖宫产术者128例;子宫破裂组20例,均为行剖宫产术分娩.子宫未破裂组及破裂组孕妇妊娠晚期LUS的肌层厚度分别为(1.6±0.5)、(1.1±0.7)mm,两组比较,差异有统计学意义(P=0.004).两组孕妇的年龄、身高、体重、距前次剖宫产术的间隔时间、妊娠早期LUS瘢痕的肌层厚度分别比较,差异均无统计学意义(P均>0.05).与测量LUS肌层厚度相比,定性观察LUS肌层连续性在妊娠晚期提示子宫破裂的特异度(99%)、阳性预测值(92%)、阴性预测值(94%)均较高,敏感度(60%)略低.结论妊娠早期剖宫产术瘢痕的厚度与剖宫产术后再次妊娠孕妇发生子宫破裂的相关性不大,无必要因剖宫产术后子宫瘢痕薄或存在较小CSD而终止妊娠,但应在妊娠期密切超声监测LUS情况.妊娠晚期定性观察LUS肌层连续性较常规测量厚度,对于提示发生子宫破裂更有意义. Objective To investigate the relationship between the previous cesarean scar thickness, previous cesarean scar defect and the occurrence of uterine rupture for pregnancy women after previous cesarean section and to predict the occurrence of uterine rupture in the third trimester for pregnancy women after previous cesarean section by analyzing the lower uterine segment (LUS) situation or quantitatively measure LUS myometrium thickness. Methods A total of 154 pregnant women who have a prior cesarean from January 2015 to March 2016 were selected, all of them regularly did the prenatal examination in the pregnancy period and finally gave birth in hospital. By the trans vaginal sonograph, the LUS myometrium thickness (transverse and longitudinal thickness) and the size of the previous cesarean scar defect were measured in the first trimester, the LUS myometrium thickness (longitudinal thickness) and qualitatively analysis LUS condition were measured in the third trimester. They were divided into two groups according to the pregnancy outcome: uterine rupture group (found in the cesarean operation or during the pregnancy) and without uterine rupture group (including the vaginal delivery women and those without uterine rupture in the cesarean operation period). The sensitivity and specificity of LUS myometrium thickness in the first trimester and the qualitative analysis LUS situation, the quantitative measurement of LUS myometrium thickness in the third trimester were compared in the prediction of occurrence of uterine rupture (dehiscence or complete rupture). Results The group without uterine rupture included 134 women (6 vaginal delivery and 128 cesarean delivery), and the group with uterine rupture included 20 women (all of them cesarean delivery). The LUS myometrium thickness in the third trimester in the group without uterine rupture was (1.6±0.5) mm, and was (1.1 ±0.7) mm in the uterine rupture group (P=0.004). There were no significant difference between two groups in the mean value of age, height, weight, the
作者 王林林 陈俊雅 杨慧霞 范丽欣 张潇潇 景柏华 黄瑞娜 李晨 Wang Linlin;Chen Junya;Yang Huixia;Fan Lixin;Zhang Xiaoxiao;Jing Baihua;Huang Ruina;Li Chen(Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China)
出处 《中华妇产科杂志》 CAS CSCD 北大核心 2019年第6期375-380,共6页 Chinese Journal of Obstetrics and Gynecology
关键词 子宫破裂 剖宫产术 瘢痕 妊娠初期 Uterine rupture Cesarean section Cicatrix Pregnancy trimester, first
作者简介 通信作者:陈俊雅,Email: xindichen@sina.com.
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