Acta Obstet Gynecol Scand Suppl. 1978;72:5-10.
A blind histological examination of placentae, with regard to placentitis, was carried out of 2 prospective, selected materials. The first consisted of 283 placentae, which were selected with regard to optimal obstetric outcome. The second consisted of 160 placentae, randomized from all premature and low birth weight infants in the local area. Placentitis was sub-divided into: funisitis, chorionitis, villitis and hypercellular villi. Funisitis was found in premature infants only. Villitis resulted in the birth of significantly smaller infants and placentae, and must therefore, in contrast to funisitis and chorionitis, be considered chronic. Hypercellular villi are found to have no importance. Funisitis, chorionitis and villitis could possibly be explained by an infection in 10 of a total of 15 cases of placentitis.
对两组前瞻性选定材料的胎盘进行了关于胎盘炎的盲法组织学检查。第一组包括283个胎盘，这些胎盘是根据最佳产科结局选择的。第二组包括160个胎盘，是从当地所有早产和低体重婴儿的胎盘中随机抽取的。胎盘炎分为：脐带炎、绒毛膜羊膜炎、绒毛炎和细胞增多性绒毛。脐带炎仅在早产儿中发现。绒毛炎导致出生的婴儿和胎盘明显较小，因此，与脐带炎和绒毛膜羊膜炎不同，必须被视为慢性炎症。发现细胞增多性绒毛并无重要意义。在总共15例胎盘炎病例中，有10例的脐带炎、绒毛膜羊膜炎和绒毛炎可能是由感染引起的。
