[Use of antral follicle count to predict the response pattern in controlled ovarian hyperstimulation cycles with GnRH antagonist].

Purpose: to establish whether there is a predictive relationship between the antral follicle count (AFC) on the second day of the cycle and the response pattern in controlled ovarian hyperstimulation cycles for intracytoplasmic sperm injection (ICSI).

Methods: a prospective study developed from May 2004 to May 2005, in which 51 patients aged <37 years old were submitted to assisted reproduction/ICSI in ovarian hyperstimulation protocol with gonadotropin recombinant and gonadotropin-releasing hormone (GnRH) antagonist. A transvaginal ultrasonography was performed on the second day of the cycle, to count the number of follicles measuring 2 to 10 mm, at the beginning of stimulus, data compared with the number of follicles with >15 mm on the day of ovulation triggering, the total number of oocytes retrieved and in metaphases II, the number of good quality embryos transferred and pregnancy rate.

Evaluation of two incubation environments--ISO class 8 versus ISO class 5--on intracytoplasmic sperm injection cycle outcome.

Objective: To evaluate the impact of two different incubation environments-class 8 versus class 5-on embryo quality and pregnancy rate.

Design: Retrospective comparative study.

Setting: Private fertility and gynecology clinic.