Effects of two vitrification protocols on the developmental potential of human mature oocytes

被引：37
|
作者：
Paffoni, Alessio [1 ]
Guarneri, Cristina [1 ]
Ferrari, Stefania [1 ]
Restelli, Liliana [1 ]
Nicolosi, Anna Elisa [1 ]
Scarduelli, Claudia [1 ]
Ragni, Guido [1 ]
机构：
[1] Fdn Ca Granda Osped Maggiore Policlin, Infertil Unit, I-20122 Milan, Italy
来源：
REPRODUCTIVE BIOMEDICINE ONLINE | 2011年 / 22卷 / 03期
关键词：
CryoTip; CryoTop; oocyte cryopreservation; vitrification; HIGHLY EFFICIENT VITRIFICATION; DONATION PROGRAM; CRYOTOP METHOD; IN-VITRO; CRYOPRESERVATION; EMBRYOS; CONTAMINATION; OUTCOMES; CYCLES; FRESH;
D O I：
10.1016/j.rbmo.2010.11.004
中图分类号：
R71 [妇产科学];
学科分类号：
100211 ;
摘要：
The aim of the present study was to compare an 'open' vitrification protocol to a 'closed' vitrification protocol for mature human oocytes. A prospective comparison between fresh and sibling vitrified oocytes and a retrospective comparison between the two vitrification protocols were performed. For recruited patients undergoing an IVF cycle, two or three fresh oocytes were inseminated with intracytoplasmic sperm injection (ICSI) and the remaining three or more oocytes were vitrified according to manufacturer's instructions with a 'closed' or an 'open' vitrification system. After an unsuccessful fresh cycle, oocytes were warmed and inseminated with ICSI. Embryological parameters were recorded and compared between fresh and sibling vitrified oocytes (intrapatient) as well as between the two vitrification techniques (interpatient). Oocytes vitrified with the 'closed' system showed significantly lower fertilization and cleavage rates and a reduction in the quantity and quality of obtained embryos compared with fresh sibling oocytes (P < 0.001). On the contrary, the same parameters were similar between fresh and sibling oocytes vitrified using the 'open' system. The retrospective comparison between the two vitrification protocols also showed a significant increase in clinical pregnancy rate and a reduced proportion of cancelled cycles using the 'open' system (P < 0.01). (C) 2010, Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：292 / 298
页数：7
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