Cobo E, Conde-Agudelo A, Delgado J, Canaval H, Congote A
Department of Obstetrics and Gynecology of the Universidad del Valle, Medical School, Cali, Colombia.
Am J Obstet Gynecol. 1998 Jul;179(1):122-5. doi: 10.1016/s0002-9378(98)70261-3.
Our purpose was to determine whether cervical cerclage reduces the maternal and neonatal morbidity in women with placenta previa.
Thirty-nine pregnant women with an initial diagnosis of placenta previa at 24 to 30 weeks' gestation were randomly assigned to cervical cerclage (n = 19) or conservative management (n = 20). Subjects were followed up until delivery. Primary outcome measure was gestational age at delivery. Secondary outcome measures were prolongation of pregnancy, number of patients bleeding after being randomly assigned, units of blood transfused, birth weight, hospital stay and costs, and admission to neonatal intensive care unit. Statistical significance was calculated by the Student t test, Fisher's exact probability test, and the chi2 with Yates' correction factor.
No statistically significant differences were observed between the two groups studied.
Cervical cerclage does not appear to be an adequate alternative for the management of placenta previa.
我们的目的是确定宫颈环扎术是否能降低前置胎盘孕妇的母婴发病率。
39例妊娠24至30周初诊为前置胎盘的孕妇被随机分为宫颈环扎术组（n = 19）或保守治疗组（n = 20）。对研究对象进行随访直至分娩。主要结局指标为分娩时的孕周。次要结局指标包括妊娠延长、随机分组后出血的患者数量、输血单位数、出生体重、住院时间和费用以及新生儿重症监护病房收治情况。采用Student t检验、Fisher精确概率检验以及校正Yates因子的卡方检验计算统计学显著性。
在研究的两组之间未观察到统计学显著差异。
宫颈环扎术似乎并非前置胎盘管理的合适替代方法。
