Adequate growth of the endometrium is an important factor for successful implantation. Some authors have reported that there is a steady and gradual increase in pregnancy rates as endometrial thickness increases [1]. When endometrial thickness is <6 mm, the probability of achieving a full-term pregnancy decreases [2]. In order to maximize pregnancy rates, endometrial thickness from 8 mm to 14 m...

BACKGROUND/AIMS Catheter injection speed affects depth and placement of the embryo into the uterine cavity and is shown to be highly variable in, and between, subjects in a manually performed embryo transfer. In an effort to standardize the injection speed during embryo transfer, we developed an automated transfer pump: the pump-regulated embryo transfer (PRET) device. In this randomized contro...

Abstract Study question Is there a relationship between endometrial compaction and clinical pregnancy rate in frozen embryo transfer (FET) cycles? Summary answer Clinical (CPR) were similar both patients that demonstrated or no FETs cycles. What is known already There has been increasing interest the correlation outcomes but conflicting evidence from prior investigations. design, size, duration...

In-vitro fertilization is associated with a high rate of multiple pregnancies, a consequence of the number of embryos transferred. There is a challenge in avoiding even twin pregnancies in assisted reproduction, and this can be accomplished with elective single embryo transfer and a good cryopreservation programme. In our follow-up study, we analysed all our elective single embryo transfers dur...

Abstract Study question Does modified natural endometrial preparation in single euploid frozen-thawed embryo transfer (FET) cycles affect chance of pregnancy and risk miscarriage compared to artificial? Summary answer The rate clinical live birth increases while the decreases FET artificial cycles. What is known already Corpus luteum produces growth factors, angiogenic factors vasoactive substa...

OBJECTIVES To compare the live birth rates and moderate/severe ovarian hyperstimulation syndrome (OHSS) rates of 2 different approaches using gonadotropin-releasing hormone (GnRH) agonist triggering in high responder women. Methods: A retrospective cohort study was performed to evaluate intracytoplasmic sperm injection (ICSI) and embryo transfer (ET) outcomes in high responder women who underwe...