Vardon D, Burban C, Collomb J, Stolla V, Erny R
Centre de Procréation Médicalement Assistée, Hôpital de la Conception, Marseille.
J Gynecol Obstet Biol Reprod (Paris). 1995;24(8):811-5.
To determinate the true incidence of treatment-independent pregnancy in an in vitro fertilization programme. To establish and to compare the characteristics of couples with and without spontaneous pregnancy. To analyze the outcome of pregnancies.
Retrospective.
In Vitro Fertilization Unit, Conception's Hospital, Marseille, France.
594 couples having attempted one or more IVF procedures. The study concerned low-fertility couples (484) ruling our true sterile couples (110).
Spontaneous pregnancies occurred in 54 couples (11.2%). The characteristics of the two populations were not statistically different, except a shorter duration of infertility (p < 0.05) in spontaneous pregnancies. The rate of ectopic pregnancies in the spontaneous pregnancies was statistically higher than that observed in IVP pregnancies (12% versus 6.5%). The fertility rare of these couples was very low (0.38%).
Spontaneous pregnancies in vitro fertilization programmes are not rare. The evaluation of the results of the in vitro fertilization requires taking the possible spontaneous pregnancies into account.
确定体外受精项目中无需治疗而自然怀孕的真实发生率。确定并比较自然怀孕和未自然怀孕夫妇的特征。分析妊娠结局。
回顾性研究。
法国马赛受孕医院体外受精科。
594对尝试过一次或多次体外受精程序的夫妇。该研究针对低生育力夫妇（484对），排除了真正的不育夫妇（110对）。
54对夫妇自然怀孕（11.2%）。除自然怀孕的不孕持续时间较短（p < 0.05）外，这两组人群的特征无统计学差异。自然怀孕中宫外孕的发生率在统计学上高于体外受精怀孕中的发生率（12%对6.5%）。这些夫妇的生育几率非常低（0.38%）。
体外受精项目中的自然怀孕并不罕见。体外受精结果的评估需要考虑到可能的自然怀孕情况。
