前置胎盘致产后出血109例临床分析

A Clinical Analysis of 109 Cases of Postpartum Hemorrhage Induced by Placenta Previa

对1981～1990年208例前置胎盘所致产后出血109例临床特点进行了分析。其发病率为52.40％,与同期非前置胎盘致产后出血的发病率6.85％比较,差异有显著意义。前置胎盘类型引起产后出血发病率高低,依次为中央型、部分型、边缘型。其中中央型前置胎盘占据整个子宫下段的前、后、侧壁者发病率最高,出血量也最多。经产妇前置胎盘发病率明显高于初产妇,分别为2.45％及0.43％,说明产次与前置胎盘的发生关系密切。

In this article we have analysed 208 cases of placenta previa admitted to our hospital from 1981 to 1990. 109 cases of them had postpartum hemorrhage. The disease incidence is 52.40%, while that in those puerperas without placenta previa during the same period is 6.85 %. There is a significant statistical difference between the two groups. The risk of postpartum hemorrhage induced by placenta previa is associated with the location of placenta implanting, which is of central type of placenta previa, partial and marginal respectively. The central type of placenta previa may easily lead to great blood loss than the other two. The incidence of placenta previa in multiparas is higher than in primiparas, amounting to 2.54 % and 0.43 % respectively, thus suggesting that it is closely related to parity.