取卵前hCG值大於1.2 IU/L懷孕率較高

PCO病患，IVF取卵前抽血顯示hCG值高(>1.2 IU/L)，懷孕率較高

基礎LH值或取卵前LH值與懷孕率無關

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3251000/?report=reader

Exogenous hCG activity, but not endogenous LH activity, is positively associated with live birth rates in anovulatory infertility

Joan-Carles Arce and Johan Smitz

Objective

To evaluate, retrospectively, the roles of endogenous and exogenous luteinising hormone (LH) activity on live birth rate in ovulation induction cycles.

Methods

Associations between LH activity at baseline, end of stimulation and live birth rate were analysed in relation to patient characteristics, baseline and end of stimulation variables in WHO group II anovulatory women (n=155) stimulated with recombinant follicle-stimulating hormone (rFSH) or highly purified human menopausal gonadotrophin (HP-hMG). HP-hMG provides FSH and exogenous LH activity mainly in the form of human chorionic gonadotrophin (hCG).

Results

Serum LH concentrations at baseline or end of stimulation were not predictive of live birth rate in the rFSH group (n=79) or HP-hMG group (n=76). Serum hCG concentration at end of stimulation was a significant positive predictor in HP-hMG-treated women. Other variables were not independently predictive of live birth in either of the groups, except for a negative association between serum FSH concentrations at the start of stimulation and live birth in the rFSH-treated group.

Conclusions

Endogenous LH concentrations are not predictive of live birth in anovulatory WHO group II patients undergoing ovulation induction with rFSH or HP-hMG. On the other hand, exogenous hCG activity during HP-hMG stimulation is positively associated with treatment outcome.

Keywords: Highly purified menotrophin, human chorionic gonadotrophin, infertility, live birth, luteinising hormone, ovulation induction

Live birth rate according to the ≤P25, >P25-P75 and >P75 percentiles of serum hCG concentrations at end of HP-hMG stimulation. Seventy women attended the end-of-stimulation visit.