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Human Reproduction, Vol. 15, No. 7, 1435-1439, July 2000
© 2000 European Society of Human Reproduction and Embryology

Analysis of the bleeding pattern in assisted reproduction cycles with luteal phase supplementation using vaginal micronized progesterone

E. Romàn, A. Aytoz, J.E.J. Smitz, B. Faguer, M. Camus, A.C. Van Steirteghem and P. Devroey1

Center for Reproductive Medicine, Academisch Ziekenhuis, Vrije Universiteit, Laarbeeklaan 101, 1090 Brussels, Belgium

This study was designed to determine the effects of a vaginal micronized progesterone preparation on bleeding patterns and pregnancy outcomes after in-vitro fertilization and intracytoplasmic sperm injection (IVF–ICSI). The study population consisted of 149 consecutive women who had undergone IVF–ICSI using `long-protocol' stimulation with buserelin–human menopausal gonadotrophin (HMG). A retrospective chart analysis of computerized medical records was undertaken. Vaginal progesterone (200 mg three times daily) was begun the day before oocyte retrieval and continued for a minimum of 16–19 days following human chorionic gonadotrophin (HCG) administration. Occurrence of bleeding following HCG injection, pregnancy rate and outcomes, and serum concentrations of oestradiol were measured. Women undergoing IVF and embryo transfer with ICSI and using vaginal progesterone for luteal support had normal luteal phase lengths (day of HCG minus day of onset of bleeding). In the absence of pregnancy, bleeding occurred after 19.2 ± 3.9 days (mean ± SD). Out of the pregnant group only three women bled within 19 days of HCG administration: two had biochemical pregnancies which spontaneously vanished and one evolved to term. The results reflect the normal bleeding pattern to be expected when vaginal progesterone is used for luteal support in IVF and embryo transfer, an approach whose efficacy has been amply proven. No shortened luteal phases were observed using vaginally administered progesterone.

Key words: assisted reproduction technology/bleeding/oestrogen/vaginal progesterone

1 To whom correspondence should be addressed at:E-mail: cferdyp{at}az.vub.ac.be


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