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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Late luteal estradiol patterns are a better prognosticator of pregnancy outcome than serial beta-human chorionic gonadotropin concentrations.

OBJECTIVE: Since the corpus luteum (CL) is known to play an important role in early pregnancy, its activity could possibly be a marker for pregnancy outcome. DESIGN: The late estradiol (E2) concentration in 48 viable pregnancies and 39 pregnancies which resulted in spontaneous abortions after in vitro fertilization and embryo transfer were used to evaluate such predictability. SETTING: All patients studied were of the Center for Reproductive Medicine at Cornell University Medical College. PATIENTS, PARTICIPANTS: Eighty-seven patients. INTERVENTIONS: None. MAIN OUTCOME MEASURE: Serum E2 and human chorionic gonadotropin (hCG) concentrations on day +11, +13, +15 (day +1 = day of ovum pick-up) were measured and studied. RESULTS: The late luteal CL activity after rescue had a positive correlation with the number and quality of the implanted embryos. Reduced CL activity was indicative of abortion. The late luteal E2 pattern when compared with hCG doubling time had a better abortion predictability (37.8% versus 63.9%, respectively). CONCLUSION: Corpus luteum activity demonstrated to be a better prognosticator of abortion than serial beta-hCG titers.[1]


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