Tubal factor, cleavage stage and more than one embryo transferred were risk factors associated with ectopic pregnancy after assisted reproductive treatment.

Objective: Ectopic pregnancy is a well-known complication following in vitro fertilization with embryo transfer; studies have questioned, however, whether there are risk factors that could be identified before the procedure. The objective of this study was to investigate the possible risk factors involved in ectopic pregnancy following in vitro fertilization.

Methods: Retrospective case-control study performed at an assisted reproduction clinic in Brazil.

Evaluation of miR-135a/b expression in endometriosis lesions.

The pathogenesis of endometriosis is not clear; however, microRNAs (miRNAs/miRs) are involved in the pathogenesis. miRNAs are short noncoding RNAs involved in post-transcriptional regulation of gene expression by silencing the expression of target genes. The expression of is associated with endometrial receptivity and implantation; the expression is also associated with the expression of certain genes, including homeobox protein Hox-A10 (.

Ectopic pregnancy in left ovary and contralateral uterine tube diagnosed one week apart in In Vitro Fertilization with donor eggs: Case report.

Bilateral ectopic pregnancy is a rare clinical condition with an estimated prevalence of 1/200 000 in spontaneous pregnancies. Studies have found that In Vitro Fertilization (IVF) is related to ectopic pregnancy independently, but the incidence of tubal disease in the donor egg recipient population is thought to be significantly lower than in the standard IVF population. We report the case of a patient participating in the egg-sharing program, who was diagnosed with ovarian ectopic pregnancy, treated with surgery.

Comparison of embryo quality between sibling embryos originating from frozen or fresh oocytes.

Human embryo cryopreservation techniques allow storage of surplus embryos created during assisted reproduction procedures; however, the existence of these same surplus embryos has sparked further debate. What can be their fate once they are no longer desired by their parents, or if the parents are deceased? Thus, the level of interest in the cryopreservation of oocytes has increased, as has the necessity for further scientific study. This study had the objective of comparing embryo quality from 16 women who underwent intracytoplasmic sperm injection, where approximately half of the retrieved oocytes per cycle were inseminated fresh after collection, and the remainder cryopreserved for subsequent fertilization.

[Analysis of coagulation parameters in patients undergoing controlled ovarian hyperstimulation for in vitro fertilization].

Background: Hyperestrogenic conditions have been related to alterations in the coagulation parameters. The objective of this study was to identify changes in coagulation parameters in women undergoing in vitro fertilization and embryo transfer (IVF-ET).

Methods: A group of 15 patients was studied prospectively, immediately before and during the course of an IVF-ET cycle.