Spontaneous pregnancies among couples previously treated by in vitro fertilization

Among couples previously treated by IVF, one in five has a live birth following a spontaneous pregnancy. This should give hope to unsuccessfully treated couples, especially young couples with unexplained infertility.

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Authors

Pénélope Troude, M.D., Estelle Bailly, M.Sc., Juliette Guibert, M.D., Jean Bouyer, Ph.D., Elise de la Rochebrochard, Ph.D., DAIFI Group

Vol 98, Issue 1 , Pages 63-68

Abstract

Objective:

To determine the frequency of live births following spontaneous pregnancy (BSP) and to examine their associated factors among couples who have unsuccessfully or successfully experienced fertility treatments.

Design:

Retrospective cohort.

Setting:

Eight IVF centers.

Patient(s):

A total of 2,134 couples who began IVF treatment in the centers in 2000–2002 and were followed up by a postal questionnaire sent 7–9 years after they started treatment in the inclusion center.

Intervention(s):

None.

Main Outcome Measure(s):

Rates of BSP and factors associated with BSP. Univariate and multivariate analyses were conducted using logistic regression.

Result(s):

The BSP rate was 17% (218/1,320) among couples who had previously had a child through medical treatment and 24% (193/814) among couples who had remained childless after treatment. In both groups, the probability of BSP was higher among younger women and increased with a smaller number of IVF attempts. Probability was also higher when the cause of infertility was unexplained.

Conclusion(s):

Our results should give hope to couples who have been unsuccessfully treated by IVF, especially young couples with unexplained infertility. Nonetheless, it should be remembered that the BSP rates are cumulative rates observed over a long period of time and that these couples have a very low monthly probability of conceiving.

Read the full text at: http://www.fertstert.org/article/S0015-0282(12)00396-2/fulltext


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Fertility and Sterility® is an international journal for obstetricians, gynecologists, reproductive endocrinologists, urologists, basic scientists and others who treat and investigate problems of infertility and human reproductive disorders. The journal publishes juried original scientific articles in clinical and laboratory research relevant to reproductive endocrinology, urology, andrology, physiology, immunology, genetics, contraception, and menopause. Fertility and Sterility® encourages and supports meaningful basic and clinical research, and facilitates and promotes excellence in professional education, in the field of reproductive medicine.

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