胎膜早破剖宫产儿咽吸出物及羊水细菌培养结果分析

Analysis of the results of bacterial culture of amnioticfluid and pharynx aspirate of newborns delivered bycesarean section because of premature rupture ofmembrane.

本文随机选择５４例以剖宫产结束分娩的胎膜早破产妇作为研究对象。剖宫产术中取单水及新生儿咽部分泌物做细菌培养，发现５４例胎膜早破者羊水中细菌培养阳性率为４６．３０％（２５／５４），新生儿咽部细菌培养阳性率为３１．４８％（１７／５４），均明显高于未破膜者（Ｐ＜０．０１）；进一步分析发现，破膜距胎儿娩出时间大于４８小时者，羊水及新生儿咽部带菌率明显升高（Ｐ＜０．０１）；产程中阴道检查超过３次者，羊水中及新生儿咽部带菌率明显升高（Ｐ＜０．０１）。作者认为：破膜时间超过１２小时未临产者应引产，超过４８小时未临产者，估计胎儿可存活应手术结束分娩。

bjective: To study the relationship between thepremature rupture of membranes and the results ofbacterial culture of the amniotic fluid and pharynx aspirate. Design: In 54 patients whol were with premature rupture of membranes and underwent cesareansection,the bacterial cultures of the amniotic fluid andpharynx aspirate were made in the newborns. Results:The positive rate of bacterial cultures in the amnioticfluid and newborn's pharynx aspirate were 46.30%(25/54 ) and 31. 48 % (17/54 ) respectively, which washigher than that of no membrane rupture. Carrier ratewas evidently increased if the time from rupture ofmembranes to delivery was more than 48 hours, andthe positive rate of bacterial culture was obviously increased if the vaginal examination during labor wasmore than 3 times. Conclusion: The results of thisstudy showed that too frequent vaginal examinationsincrease the incidence of intrauterine infetion afterrupture of the membranes and the labor should be finished within 48 hours after rupture of the membranes.