Morfologia do primeiro corpúsculo polar e taxas de fertilização, clivagem e qualidade embrionária

This integrative review evaluated the most commonly diagnosed causes of infertility in men and women in Brazil, as well as the medically assisted reproduction technologies regularly employed in these cases. We searched in four electronic databases (PubMed, including Medline; Scopus; Web of Science and LILACS), and two grey literature (Google Scholar and OpenGrey), guided by the focused question: "What are the main factors responsible for male and female infertility in Brazil, and what are its relationships with success rates after assisted reproduction treatment?". We included interventional or observational studies, without limitation by language or year of publication. Our searches in the electronic indexers recovered 1,119 articles, and after analyzing the inclusion and exclusion criteria, 27 articles composed the body of analysis for this review. We grouped the studies into four themes: factors responsible for male and female infertility, assisted reproductive technologies (ART) used in the infertility treatment, assisted reproduction procedures, and clinical predictors of success rates in ART. Despite the scarcity of studies analyzing the association between infertility and assisted reproductive technologies in Brazil, it was possible to infer that the most prevalent infertility cause in women was endometriosis, while in men it was azoospermia. The most widely assisted reproductive technology applied in the country is the intracytoplasmic injection of spermatozoa (ICSI), ensuring better success rates in the treatment of infertility for men and women.

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Factors related to infertility in Brazil and their relationship with success rates after assisted reproduction treatment: an integrative review

Maranhão

Mariz

Araújo

et al. 2020

JBRA

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Morfologia do primeiro corpúsculo polar e taxas de fertilização, clivagem e qualidade embrionária

Abstract: it has been observed that the presence of augmented first spindle pole is related to worse rates of fertilization, fragmentation and bad quality embryo formation. Nevertheless, fragmentation in the first spindle pole of the oocyte does not seem to affect ICSI results.

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References 22 publications

Factors related to infertility in Brazil and their relationship with success rates after assisted reproduction treatment: an integrative review

Factors related to infertility in Brazil and their relationship with success rates after assisted reproduction treatment: an integrative review

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