Saito M, Koyama T, Yaoi Y, Kumasaka T, Yazawa K
Acta Obstet Gynecol Scand. 1975;54(3):227-30. doi: 10.3109/00016347509157766.
In a study of 130 tubal pregnancies the relationships as to location of the corpus luteum, the implantation site, and the gross findings of the non-pregnant fallopian tube were analyzed. A contralateral corpus luteum was found in 20% of the cases. Hydrosalpinx, peritubal adhesions and/or thickening of the tubal wall were observed in 33% of the non-pregnant tubes. Grouping by implantation site--ipsilateral or contralateral corpus luteum--showed no statistical differences. The incidence of chronic pelvic inflammatory diseases was no greater in the subjects above 30 years of age and those having had more than 2 pregnancies. The results suggest that "tube locking" of the ovum, sometimesa result of previous tubal inflammatory disease, sometimes a result of supposed insufficiency of tubal peristalsis. was the major cause of tubal gestation. External migration of the ovum alone may not be an important factor in the genesis of tubal pregnancy.
在一项对130例输卵管妊娠的研究中，分析了黄体位置、着床部位以及未孕输卵管的大体检查结果之间的关系。20%的病例中发现对侧黄体。33%的未孕输卵管观察到输卵管积水、输卵管周围粘连和/或输卵管壁增厚。按着床部位分组——同侧或对侧黄体——未显示出统计学差异。30岁以上及有过2次以上妊娠的受试者中，慢性盆腔炎的发生率并无更高。结果表明，卵子的“输卵管锁定”，有时是既往输卵管炎症疾病的结果，有时是假定的输卵管蠕动不足的结果，是输卵管妊娠的主要原因。卵子的外移本身可能不是输卵管妊娠发生的重要因素。
