ANALYSIS OF 76 TOTAL FERTILIZATION FAILURE CYCLES OUT OF 2732 INTRACYTOPLASMIC SPERM INJECTION CYCLES

被引:0
作者
LIU, J
NAGY, Z
JORIS, H
TOURNAYE, H
SMITZ, J
CAMUS, M
DEVROEY, P
VANSTEIRTEGHEM, A
机构
关键词
FERTILIZATION; INTRACYTOPLASMIC SPERM INJECTION; MALEFACTOR INFERTILITY; MICROINJECTION;
D O I
暂无
中图分类号
R71 [妇产科学];
学科分类号
100211 ;
摘要
From October 1992 to December 1994, 2732 cycles of treatment by intracytoplasmic sperm injection (ICSI) were carried out in couples mainly with severe male-factor infertility. The overall fertilization rate in these 2732 cycles was 71% of intact oocytes. However, in 76 (72 couples) of these cycles, none of the injected oocytes became fertilized, so the total fertilization failure rate was 3% (76/2732 cycles). Details of these 76 cycles were analysed. The results show that total fertilization failure after ICSI may be explained by different factors related to (i) semen characteristics (only immotile or round-headed spermatozoa for ICSI) or (ii) the oocytes (number, abnormal morphology, damage after ICSI). Of 26 couples, 22 achieved fertilization in their subsequent ICSI cycles. In conclusion, total fertilization failure after ICSI for the treatment of severe malefactor infertility was mainly caused by the poor viability of the spermatozoa used for injection; it was also associated with a low number and poor quality of oocytes. Repeated ICSI treatment may be useful or necessary in couples with total fertilization failure.
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页码:2630 / 2636
页数:7
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