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目的研究胚胎在玻璃化冷冻预处理液不同时间对冻融胚胎质量及临床妊娠率的影响。方法选择至少3个优胚冷冻的周期,根据胚胎在玻璃化冷冻预处理液2-5分钟随机分为四组。结果四组患者冻融周期的基本情况差异无统计学意义,复苏率、临床妊娠率及胚胎种植率差异无统计学意义。结论胚胎在玻璃化冷冻预处理液时间影响不明显,控制在2-5分钟为宜。
Objective To study the effect of embryo on the quality of frozen-thawed embryo and the clinical pregnancy rate at different times of vitrification pretreatment. Methods The cycle of freezing at least three excellent embryos was selected and divided into four groups randomly according to embryos 2-5 minutes after vitrification. Results There was no significant difference in the basic conditions of the four groups of patients in the period of freezing and thawing. There was no significant difference in the recovery rate, clinical pregnancy rate and embryo implantation rate. Conclusion The embryo in the vitrification of frozen pretreatment time is not obvious, control in 2-5 minutes is appropriate.