Gibbs R S, Listwa H M, Read J A, Carpenter J, Dobek A S
Obstet Gynecol. 1977 Jul;50(1):102-3.
Amniotic fluid from 35 patients delivered by cesarean section was examined by Wright's stain. Of the patients in labor and with rupture of the membranes, 32% had more than 1 polymorphonuclear neutrophil per oil field (PMN/OF) while 68% had less than 1 PMN/OF. In both groups, endometritis occurred frequently, and fever indexes were similar. With ruptured membranes prior to cesarean section, observing greater than 1 PMN/OF of amniotic fluid did not discriminate groups at high and low risk for intrauterine infection.
对35例行剖宫产分娩的患者的羊水进行了瑞氏染色检查。在临产且胎膜破裂的患者中，32%的患者每个油镜视野有多形核中性粒细胞（PMN/OF）超过1个，而68%的患者PMN/OF少于1个。在两组中，子宫内膜炎均频繁发生，且发热指数相似。剖宫产术前胎膜破裂时，观察到羊水PMN/OF大于1个并不能区分宫内感染的高风险组和低风险组。
