Artículo
Use of metaphase I oocytes matured in vitro is associated with embryo multinucleation
Fecha de publicación:
11/2012
Editorial:
Elsevier Inc
Revista:
Fertility And Sterility
ISSN:
0015-0282
e-ISSN:
1556-5653
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Objective: To evaluate the impact of oocyte maturational stage at retrieval on embryo multinucleation. Design: Retrospective study. Setting: Private institution for assisted reproduction. Patient(s): A total of 412 patients undergoing 500 intracytoplasmic sperm injection (ICSI) cycles between August 2006 and September 2010. Intervention(s): Routine ICSI laboratory procedures. Main Outcome Measure(s): Normal and abnormal fertilization; embryo development; arrest at pronuclear stage; failure to undergo first mitotic division; presence of embryo multinucleation; embryo quality; pregnancy, implantation, and miscarriage rates. Result(s): A significantly lower percentage of multinucleation was found in embryos originating from metaphase II (MII) oocytes when compared with MI–II- and MI-derived oocytes. Significantly fewer multinucleated cells per embryo were observed in MII-derived oocytes. Clinical pregnancy and implantation rates were significantly higher when only embryos derived from MII oocytes were transferred. Conclusion(s): Embryo multinucleation rate increases when in vitro–matured (2–5 hours incubation) MI (MI–II) oocytes are used instead of in vivo–matured oocytes in ICSI. Furthermore, all other ICSI outcome parameters are also compromised. The use of donated gametes does not modify these results. (Fertil Steril! 2013;99:414–21. "2013 by American Society for Reproductive Medicine.)
Palabras clave:
Oocyte
,
Methapase Ii
,
Multinucleation
,
Fertilization
,
Clinical Trial
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IBYME)
Articulos de INST.DE BIOLOGIA Y MEDICINA EXPERIMENTAL (I)
Articulos de INST.DE BIOLOGIA Y MEDICINA EXPERIMENTAL (I)
Citación
de Vincentiis, Sabrina; de Martino, Evelyn; Buffone, Mariano Gabriel; Brugo Olmedo, Santiago; Use of metaphase I oocytes matured in vitro is associated with embryo multinucleation; Elsevier Inc; Fertility And Sterility; 99; 2; 11-2012; 414-421
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