Comparison of intramuscular versus subcutaneous aqueous progesterone for luteal phase support in artificially prepared frozen embryo transfer cycles.

Objective: Cryopreservation of embryos for future transfer attempts has noticeably increased in the last decade, especially due to the technological developments in in vitro fertlization (IVF) laboratories. In parallel, different progesterone (P) replacement regimens preceding artificially prepared frozen embryo transfer (AC-FET) attempts, especially with respect to the route of application and dosing scheme, have been widely argued so far. We aimed to provide more information about the efficacy profile of novel subcutaneous aqueous progesterone (SP) in AC-FET cycles.

Being on the side of old findings: progesterone elevation on the day of oocyte maturation induction does not affect embryological parameters throughout the blastocyst culture period.

Purpose: To investigate whether there is any detrimental effect of progesterone elevation (PE) on the day of oocyte maturation induction on embryological development potentials.

Methods: This retrospective single-center cohort study included a total of 1485 individual intracytoplasmic sperm injection (ICSI) cycles between January 2014 and December 2018. Serum progesterone (P) levels were measured on the day of oocyte maturation induction following the GnRH antagonist suppression protocol.

Could serum β-hCG levels and gestational age be the indicative factors for the prediction of the degree of trophoblastic invasion into tubal wall in unruptured ampullary pregnancies?

Objective: To evaluate the predictive value of gestational age and maternal serum β-hCG concentration for the determination of the depth of trophoblastic invasion into the tubal wall.

Methods: This is a retrospective trial conducted on women with a diagnosis of ampullary pregnancy (71) who were submitted to salpingectomy. Serum β-hCG measurements were obtained at the initial admission of hospital.