Cryopreservation of blastocysts is the most feasible strategy in good responder patients.

Objective: To assess on which day to cryopreserve and transfer thawed embryos in good-responder patients by comparing the cycle outcomes of day 3 transfers vs blastocysts formed through extended culture before or after cryopreservation.

Design: Retrospective clinical study.

Setting: Private IVF center.

Prolonged duration of transfer does not affect outcome in cycles with good embryo quality.

The objective of investigating the impact of the time that embryos remain in the catheter on the outcome of cycles was assessed by measuring the period between loading the catheter and discharging the embryos in 300 transfer cycles. The pregnancy and implantation rates were similar in cycles with good embryo quality regardless of transfer duration.

Subclinical pregnancy losses among women undergoing in-vitro fertilization with ICSI.

Background: The purpose of this study is to asses the frequency of subclinical pregnancy loss (SPL) among women undergoing controlled ovarian hyperstimulation (COH) and in-vitro fertilization with ICSI.

Methods: The study was retrospectively conducted in a private IVF center. SPL was defined by a temporary rise in serum beta hCG, along with the absence of signs of intra- and extra-uterine pregnancy by transvaginal ultrasonography.

Elevated oestradiol concentrations are not associated with increased first trimester miscarriage rates of singleton gestations conceived by assisted conception treatment.

The study evaluated the impact of elevated oestradiol concentrations on pregnancy loss during the first trimester in singleton gestations conceived via ovarian stimulation and intracytoplasmic sperm injection (ICSI). Following determination of oestradiol concentrations during 6478 ICSI cycles, patients were assorted by oestradiol percentile. Hyper-responders were defined as patients having peak oestradiol concentrations over the 90th percentile (>4200 pg/ml, 685 cycles), moderate responders were defined as patients having peak oestradiol concentrations between the 75th and 90th percentiles (3250-4200 pg/ml, 958 cycles) and normal responders were defined as patients having peak oestradiol concentrations between the 25th and 75th percentiles (1350-3250 pg/ml, 3325 cycles).

Successful pregnancy in a liver transplant recipient following controlled ovarian hyperstimulation and intracytoplasmic sperm injection.

As the demand for assisted reproductive technologies (ART) increases, infertility treatments are increasingly being sought by patients with serious health problems that were once regarded as leading to infertility. Moreover, since pregnancy may worsen their underlying health conditions, these women have been advised to remain infertile. We describe here a liver transplant recipient who underwent ART for male factor infertility.

Prenatal karyotypes of fetuses conceived by intracytoplasmic sperm injection.

Objective: To evaluate the rate of chromosomal abnormalities in babies conceived by intracytoplasmic sperm injection (ICSI).

Design: Retrospective case-control analysis.

Setting: Private IVF center.

Monochorionic triplets following intracytoplasmic sperm injection: a report of two consecutive cases.

Monochorionic triplet pregnancies are very rare. Here we report 2 cases of multiple pregnancies with monochorionic triplets following intracytoplasmic sperm injection (ICSI) and day 3 embryo transfer. The 2 women concomitantly underwent controlled ovarian hyperstimulation due to male factor infertility.

Survival rates during the first trimester of multiple gestations achieved by ICSI: a report of 1448 consecutive multiples.

Background: The purpose of this study was to determine the rate of spontaneous gestational sac loss during the first trimester in women achieving multiple pregnancies by ICSI.

Methods: A retrospective analysis was performed of 1448 consecutive multiple pregnancies conceived by ICSI.

Results: Of the cohort of 1448 pregnancies, twin gestations constituted 59.