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Hum. Reprod. Advance Access originally published online on May 26, 2005
Human Reproduction 2005 20(9):2441-2447; doi:10.1093/humrep/dei101
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Published by Oxford University Press on behalf of the European Society of Human Reproduction and Embryology [2005]

IVF/ICSI outcome and serum LH concentration on day 1 of ovarian stimulation with recombinant FSH under pituitary suppression

S. Bjercke1, P. Fedorcsak, T. Åbyholm, R. Storeng, G. Ertzeid, N. Oldereid, A. Omland and T. Tanbo

Department of Obstetrics and Gynecology, National Hospital, University of Oslo, N-0027 Oslo, Norway

1 To whom correspondence should be addressed. Email: sverre.bjercke{at}rikshospitalet.no

BACKGROUND: Down-regulation with GnRH agonist has been suggested to result in a profound suppression of LH bioactivity, reduced estradiol synthesis, and thus impaired IVF and pregnancy outcome. The aims of this study were: (i) to assess the usefulness of serum LH measurement on stimulation day 1 as a predictor of ovarian response, conception and pregnancy outcome in patients treated with long-term down-regulation with GnRH agonist and recombinant FSH, and (ii) to define the best threshold LH value, if any, to discriminate between women with different outcomes of IVF. METHODS: Records of 2625 cycles in 1652 infertile women undergoing IVF (n=1856) and/or ICSI (n=769) treatment were reviewed. RESULTS: The range of LH concentrations on stimulation day 1 overlapped among non-conception cycles, conception cycles, ongoing pregnancies and early pregnancy losses. Receiver operating characteristic (ROC) analysis showed that serum LH concentrations on stimulation day 1 were unable to discriminate between conception and non-conception cycles (AUCROC=0.51; 95% CI: 0.49–0.54) or ongoing pregnancies versus early pregnancy loss groups (AUCROC=0.52; 95% CI: 0.47–0.57). Stratification for various low serum levels of LH did not reveal significant differences with respect to conception or pregnancy outcome among different LH levels on stimulation day 1. CONCLUSIONS: Serum LH concentration on stimulation day 1 cannot predict ovarian response, conception and pregnancy outcome in women receiving long-term down-regulation during assisted reproduction treatment.

Key words: assisted reproduction/early pregnancy loss/FSH/LH/ovarian stimulation


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