Category: Assisted reproduction

Fertility experts at Dexeus Mujer assess the indication for ICSI in assisted reproduction and debunk myths

Although ICSI has meant a significant advance in the field of reproductive medicine in patients with male infertility problems, there is a certain disparity of opinions in the medical world about its use in other cases of infertility.

Embryo transfer at the blastocyst stage improves pregnancy and live-birth rates in egg donation treatments

The study, led by the biologist Dr Elisabet Clua, head of the Oocyte and Embryo Donation Programme at Dexeus Mujer, was carried out at this centre between April 2017 and August 2018. The sample of women under study were recipients…

A study led by Dexeus Mujer validates ASEBIR’s morphological grading of blastocysts

Carme Pons, a clinical embryologist at Dexeus Mujer and a member of the Embryology Interest Group of the Spanish Association for the Study of Reproductive Biology (ASEBIR), has led a multicentre study promoted by this interest group.

Increased progesterone levels do not affect the results of fertility treatments

A total of 1,495 cryotransfer cycles with Preimplantation Genetic Testing (PGT) performed between August 2017 and December 2019 analysed. All patients were between 18 and 40 years old and had previously undergone an ovarian stimulation treatment.

Study urges rethinking clinical trials with androgens in patients with low ovarian reserve

The fact that women with hyperandrogenism present an increased number of antral follicles suggests a role of androgens in follicular development. Clinical examples of this effect are polycystic ovary syndrome (PCOS) and patients with congenital adrenal hyperplasia…

A short period of ejaculatory abstinence can improve the results of reproductive treatments

According to the latest edition of the World Health Organization (WHO) Manual, the formal recommendation on abstinence time for semen analysis is two to seven days. However, this period is not endorsed by the European Society for Human Reproduction…

Early detection of serum progesterone levels, key in frozen embryo transfer

Based on previous studies that suggested a positive impact of adequate serum progesterone levels in cycles of artificial endometrial preparation, Dr Sofia Gaggiotti, during her activity at the Reproductive Medicine Service of Dexeus Mujer…

Paternal age is associated with a higher prevalence of mosaic embryo

A retrospective study carried out by researchers from the Dexeus Mujer Reproductive Medicine Service, specialized in preimplantation genetic diagnosis and led by researcher Lluc Coll, has analysed what factors can influence the presence…

Variability in the genotype of FSHR or FSHB can influence the response to ovarian stimulation

Several studies have shown a relationship between the FSHR or FSHB genotype and the response to medication with rFSH in ovarian stimulation treatments, suggesting a possible effect of individual genetic variability on ovarian stimulation.

Dexeus Mujer promotes the first systematic review of ovarian stimulation treatments in egg donation programs

Since its introduction in 1980, oocytes donation is an assisted reproductive treatment whose demand has been increasing. The choice of ovarian stimulation treatment performed on egg donors is essential to optimize results…