Journal
GYNECOLOGICAL ENDOCRINOLOGY
Volume 33, Issue 8, Pages 602-606Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/09513590.2017.1298742
Keywords
ART; luteal phase support; prediction of pregnancy; progesterone
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Our study aimed to determine whether mid-luteal serum P concentrations can serve as a predictive factor for in vitro fertilization (IVF) outcomes and whether increasing P dosage for patients with low levels at mid-luteal phase may improve pregnancy rates. It was a prospective, randomized controlled study. A total of 146 patients undergoing IVF treatment were prospectively enrolled and received routine luteal phase support (LPS) regimen of Endometrin (R) (progesterone) 200mg/day. Serum P levels were measured 7days after embryo transfer (ET). Considering a cutoff level of 15ng/ml on this day, patients with higher levels continued the same dosage until pregnancy test (control group). Patients with lower levels were randomly allocated to continue Endometrin (R) 200mg/day (Group A) or to increase Endometrin (R) dosage to 300mg/day (Group B). The Main Outcome Measures were pregnancy rates. Both biochemical and clinical pregnancy and live birth rates were comparable between all groups regardless of P level on day 7 of luteal phase and regardless of dose adjustment. ROC analysis determined that mid-luteal P levels of 17ng/ml can be a better predictor of cycle outcome. In conclusion raising the P dose at mid-luteal phase to 300mg daily did not improve cycle outcomes.
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