体外受精完全失败行卵细胞胞质内单精子注射补救的应用价值探讨

目的 :对受精完全失败的体外受精 (IVF)周期及时行卵细胞胞质内单精子注射 (ICSI)进行补救的临床应用价值进行探讨。　方法 :取精卵共培养 16～ 18h后受精完全失败的 16个周期 ,及时将所有可见第一极体的卵母细胞进行补救ICSI。　结果 :行ICSI后 ,卵母细胞异常受精率为 17.9% ,正常受精率为 4 2 .7% ,正常卵裂率为79.6 % ,种植日优质胚胎率为 2 9.7%。 16个周期共移植胚胎 5 4个 ,平均每个周期种植 3.4个。共获得 3例妊娠 ,临床妊娠率 18.8%。　结论 :补救性ICSI是否有临床应用价值 ,主要与可供行补救ICSI的卵母细胞数量和取卵当日卵母细胞的成熟度有关。

The Applied Value of Rescue Intracytoplasmic Sperm Injection after Complete Fertilization Failure during in vitro Fertilization Cycles

OBJECTIVE: To discuss the applied value of rescue intracytoplasmic sperm injection(ICSI) after complete fertilization failure during in vitro fertilization (IVF) cycles. METHODS: After 16-18 h co-culture with sperm, all the unfertilized oocytes with the first polar body were re-fertilized by ICSI. RESULTS: After rescue ICSI, the abnormal fertilization rate was 17.9% and the normal fertilization rate was 42.7%. Twenty-four hours later, the normal cleavage rate of the normal fertilized oocytes was 79.6%. On the day of embryo transfer, the good-quality rate of embryos was 29.7% (22/74). A mean number of 3.4 (54/16) embryos were transferred to the patient during each cycle. Clinical pregnancy was found in 3 cases out of the 16 (18.8%). CONCLUSION: The applied value of rescue ICSI may be correlated with the number and maturity of oocytes on the retrieval day.