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目的：研究子宫颈环扎术治疗前置胎盘对母婴预后的影响。方法：选择中央性前置胎盘２４例。其中，１６例为子宫颈环扎组，１８例为对照组。研究两组治疗后至终止妊娠前的失血量、延长孕周、足月产率、新生儿体重及Ａｐｇａｒ值比较，数据均经χ２检验。结果：环扎组治疗后失血量少于对照组，延长孕周较对照组长（Ｐ＜０．０１）；环扎组足月产率、新生儿体重、Ａｐｇａｒ评分均高于对照组（Ｐ＜０．０５）。结论：子宫颈环扎术确能减少中央性前置胎盘的孕期失血量，改善围产儿预后。
Objective: To study the effect of cervical cerclage on the prognosis of maternal and infant in treating placenta previa. Methods: 24 cases of central placenta previa were selected. Among them, 16 cases were cervical cerclage group and 18 cases were control group. The blood loss, prolonged gestational age, full-term birth rate, neonatal body weight and Apgar value were compared between the two groups after treatment and before termination of pregnancy. The data were tested by χ2 test. Results: The amount of blood loss in the cerclage group was less than that in the control group, prolonging the gestational age compared with the control group (P <0.01). The full-term birth rate, neonatal weight and Apgar score in the cerclage group were higher than those in the control group <0.05). Conclusion: Cervical cerclage does reduce the amount of blood loss in the central placenta previa during pregnancy, and improves the prognosis of perinatal children.