Stock R J, Nelson K J
Fertil Steril. 1984 Aug;42(2):211-5.
Ten ectopic pregnancies subsequent to tubal sterilization were histologically evaluated. In seven of the ten cases, the sites for the ectopic implantation appeared to be related to the presence of a distal remaining tubal segment that had a tuboperitoneal fistula on the medial side. As against a currently held opinion that the ectopic implantation occurs secondary to a relative disparity in the size of the sperm, the fertilized ovum, and the proximal tuboperitoneal fistula, we believe that the implantations are influenced by probable fluid movements within the remaining tubal segments. The need to consider conservative surgical approaches and good intraoperative notations in patients with an ectopic pregnancy subsequent to sterilization is stressed.
对十例输卵管绝育术后异位妊娠进行了组织学评估。在十例中的七例中，异位着床部位似乎与远端残留输卵管段的存在有关，该段内侧有输卵管腹膜瘘。与目前认为异位着床是由于精子、受精卵和近端输卵管腹膜瘘大小相对差异所致的观点不同，我们认为着床受残留输卵管段内可能的液体流动影响。强调了对绝育术后异位妊娠患者考虑保守手术方法和术中做好记录的必要性。
