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机构地区:[1]山东烟台毓璜顶医院生殖医学中心,烟台264000
出 处:《生殖与避孕》2009年第6期399-401,共3页Reproduction and Contraception
摘 要:目的:探讨可行的体外受精方式以期避免IVF完全受精失败及提高补救性ICSI妊娠率。方法:回顾性分析了556个IVF-ET周期,精卵共培养2h后捞出取母细胞,单独孵育4h观察,对周期获得的所有MII期卵均未见双极体者,及时实施ICSI补救。结果:502个IVF周期部分或全部MII卵可见双极体,新鲜周期临床妊娠率44.02%;54个周期所获的MII卵均未见双极体,即时行ICSI补救后,新鲜周期临床妊娠率31.48%。结论:短时受精、观察第2极体(Pb2)、补救ICSI三者相结合的方法应是更可行的选择。Objective: To explore the feasible mode of insemination in order to avoid the complete failure of fertilization in vitro and increase the pregnancy rate. Methods: In the retrospective study of 556 IVFET cycles, MⅡ oocytes were cultured with spermatozoa for 2 h and drown off from the culture dish, if the second polar body can not be found after 4 h, rescue ICSI was practiced immediately. Results: In 502 IVF cycles, the second polar body of partial or whole MⅡ oocytes was detected, clinical pregnancy rate was 44.02% in these fresh cycles; contrastly in 54 IVF cycles, the second polar body of the whole MⅡ oocytes was not detected, and rescue ICSI was practiced immediately, clinical pregnancy rate was 31.48% in these fresh cycles. Conclusion: The method, which short time insemination, detecting the second polar body and immediate rescue ICSI are combined, is more feasible.
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