{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,14]],"date-time":"2026-09-14T15:23:57Z","timestamp":1789399437415,"version":"build-2803163510"},"reference-count":18,"publisher":"Federa\u00e7\u00e3o das Associa\u00e7\u00f5es de Ginecologia e Obstetr\u00edcia","issue":"04","license":[{"start":{"date-parts":[[2022,2,2]],"date-time":"2022-02-02T00:00:00Z","timestamp":1643760000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Rev Bras Ginecol Obstet"],"published-print":{"date-parts":[[2022,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>\n          Objective\u2003To compare the oocyte maturation rate in the treatment of in vitro fertilization (IVF) in terms of the use of human chorionic gonadotropin (hCG), agonist gonadotropin-releasing hormone (GnRH) and dual trigger and to evaluate the associated risk factors for sub-optimal maturation rates.<\/jats:p><jats:p>\n          Methods\u2003A retrospective cohort study with 856 women who underwent IVF. They performed oocyte retrieval and were classified into 3 groups (1 - hCG, 2 - GnRH agonist, 3 - dual trigger). The primary outcome was maturation rate per trigger, and the secondary outcomes were the pregnancy rate per oocyte retrieval and the correlations between low maturation rate as well as the clinical and treatment characteristics of women.<\/jats:p><jats:p>\n          Results\u2003The maturation rate was 77% in group 1; 76% in group 2, and 83% in group 3 (p\u2009=\u20090.003). Group 2 showed women with better ovarian reserve, greater number of oocytes collected, and more mature oocytes and embryos compared with the other groups (p\u2009&lt;\u20090.001). The cumulative clinical pregnancy rate was no different between the groups (p\u2009=\u20090.755). Low ovarian reserve and low doses of follicle-stimulating hormone (FSH) administered during the stimulus were associated with a higher chance of null maturation rate.<\/jats:p><jats:p>\n          Conclusion\u2003The oocyte maturation rates and IVF results were similar in all groups. Low ovarian reserve is associated with the worst treatment results.<\/jats:p>","DOI":"10.1055\/s-0041-1741455","type":"journal-article","created":{"date-parts":[[2022,2,2]],"date-time":"2022-02-02T23:55:53Z","timestamp":1643846153000},"page":"369-375","source":"Crossref","is-referenced-by-count":1,"title":["Use of Triggers on in vitro Fertilization and Evaluation of Risk Factors for Sub-Optimal Maturation Rate"],"prefix":"10.61622","volume":"44","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4187-6730","authenticated-orcid":false,"given":"Larissa","family":"Matsumoto","sequence":"additional","affiliation":[{"name":"Department of Human Reproduction, VidaBemVinda Human Reproduction Care Center, S\u00e3o Paulo, SP, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5221-7939","authenticated-orcid":false,"given":"Lucas Yugo Shiguerhara","family":"Yamakami","sequence":"additional","affiliation":[{"name":"Department of Human Reproduction, VidaBemVinda Human Reproduction Care Center, S\u00e3o Paulo, SP, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3509-847X","authenticated-orcid":false,"given":"Edson Guimar\u00e3es Lo","family":"Turco","sequence":"additional","affiliation":[{"name":"Department of Human Reproduction, Escola Paulista de Medicina, Universidade Federal de S\u00e3o Paulo, S\u00e3o Paulo, SP, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6198-5593","authenticated-orcid":false,"given":"Cristina Laguna","family":"Benetti-Pinto","sequence":"additional","affiliation":[{"name":"Department of Gynecology and Obstetrics, Faculty Medical Sciences, Universidade Estadual de Campinas, Campinas, SP, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3889-4778","authenticated-orcid":false,"given":"Daniela Angerame","family":"Yela","sequence":"additional","affiliation":[{"name":"Department of Gynecology and Obstetrics, Faculty Medical Sciences, Universidade Estadual de Campinas, Campinas, SP, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"47794","published-online":{"date-parts":[[2022,2,2]]},"reference":[{"issue":"01","key":"ref1","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1016\/j.repbio.2017.01.004","article-title":"Gonadotropin-releasing hormone agonist (GnRHa) trigger - State of the art","volume":"17","author":"C Dosouto","year":"2017","journal-title":"Reprod Biol"},{"issue":"09","key":"ref2","doi-asserted-by":"publisher","first-page":"1778","DOI":"10.1093\/humrep\/dez100","article-title":"The number of oocytes associated with maximum cumulative live birth rates per aspiration depends on female age: a population study of 221\u2009221 treatment cycles","volume":"34","author":"Y J Law","year":"2019","journal-title":"Hum 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