Sondheimer S J, Tureck R W, Blasco L, Strauss J, Arger P, Mennuti M
Fertil Steril. 1985 Feb;43(2):313-6. doi: 10.1016/s0015-0282(16)48392-5.
A simultaneous ectopic tubal pregnancy with viable intrauterine twin gestations after IVF-ET of five fertilized eggs is presented. Pelvic ultrasound and serial quantitative hCG levels were not helpful in the diagnosis of the tubal pregnancy. The risk of multiple pregnancies and of concomitant intrauterine and extrauterine gestations increases with transfer of a greater number of embryos. Karyotype of the tubal pregnancy was normal (46,XX).
本文报告了一例在体外受精-胚胎移植（IVF-ET）植入五枚受精卵后，同时发生输卵管异位妊娠与存活的宫内双胎妊娠的病例。盆腔超声检查及连续测定人绒毛膜促性腺激素（hCG）水平对输卵管妊娠的诊断并无帮助。随着移植胚胎数量的增加，多胎妊娠以及同时发生宫内和宫外妊娠的风险也会增加。该输卵管妊娠的核型正常（46,XX）。
