Choukroun J, Friedman S, Chêne P
J Gynecol Obstet Biol Reprod (Paris). 1981;10(3):231-4.
Six further cases of simultaneous intra- and extra-uterine pregnancies are reported. The findings confirm those reported in the published literature. The frequency of such cases in one in 30 000 pregnancies. It is evident, however, that some cases, in which spontaneous abortion occurs, remain unrecognized, the haemorrhage being attributed to the extra-uterine gestation. In 90 p. cent of cases they are detected because of the extra-uterine pregnancy, and their clinical course is very variable. The association of pregnancies is almost as frequent as triplets but is very rarely mentioned. Valid clinical and pathogenic data could be obtained from their more systematic study.
本文报告了另外6例宫内宫外同时妊娠的病例。研究结果证实了已发表文献中的报道。此类病例在每30000例妊娠中的发生率为1例。然而，很明显，一些发生自然流产的病例未被识别，出血被归因于宫外妊娠。在90%的病例中，它们是由于宫外妊娠而被发现的，其临床过程变化很大。双胎妊娠的发生率几乎与三胎妊娠一样频繁，但很少被提及。通过对它们进行更系统的研究，可以获得有效的临床和病因学数据。
