Intramuscular progesterone optimizes live birth from programmed frozen embryo transfer: a randomized clinical trial.

Objective: To determine whether vaginal progesterone for programmed endometrial preparation is noninferior to intramuscular progesterone in terms of live birth rates from frozen embryo transfer (FET).

Design: Three-armed, randomized, controlled noninferiority trial.

Setting: Multicenter fertility clinic.

Vitrified blastocyst transfer cycles with the use of only vaginal progesterone replacement with Endometrin have inferior ongoing pregnancy rates: results from the planned interim analysis of a three-arm randomized controlled noninferiority trial.

Objective: To assess the noninferiority of vaginal P (Endometrin) compared with daily intramuscular P for replacement in programmed vitrified-warmed blastocyst transfer cycles and to assess the noninferiority of vaginal P in combination with intramuscular progesterone every third day compared with daily intramuscular P.

Design: Three-arm randomized controlled noninferiority study. To enable early recognition of inferiority if present, an a priori interim analysis was planned and completed once ongoing pregnancy data were available for 50% of the total enrollment goal.

Use of F 18-fluoro-D-glucose-positron emission tomography-computed tomography to localize a hilar cell tumor of the ovary.

Objective: To describe provocative testing and alternative imaging strategies used to localize an androgen-producing tumor in a 58-year-old woman with severe hirsutism.

Design: Case report.

Setting: Clinical Research Center.

Embryo afterloading: a refinement in embryo transfer technique that may increase clinical pregnancy.

Objective: Given the importance of ET technique during assisted reproductive technology cycles, we evaluated the effect of embryo afterloading subsequent to placement of the ET catheter on pregnancy rates vs. a standard direct ET.

Design: Retrospective cohort analysis.

Anthrax vaccine does not affect semen parameters, embryo quality, or pregnancy outcome in couples with a vaccinated male military service member.

Anthrax vaccination has been used in an effort to prevent infection should anthrax be used as a biological weapon, and widespread use has been considered in the event of another anthrax attack on American soil, but the long-term impact of anthrax vaccination on reproductive outcome is unknown. We found that exposure to the anthrax vaccine by males who were undergoing assisted reproduction did not negatively impact semen parameters, fertilization rate, embryo quality, or clinical pregnancy rates.

A suboptimal endometrial pattern is associated with a reduced likelihood of pregnancy after a day 5 embryo transfer.

This retrospective study examined the association of endometrial pattern and pregnancy after a day 5 ET. The pregnancy rate of women with a triple-line ultrasound endometrial pattern on the day of hCG administration was significantly higher than the pregnancy rate of women with the other ultrasound patterns. This observation suggests that, in a subset of patients, a suboptimal endometrial lining may interfere with assisted reproductive technology success.