Nulsen J C, Metzger D A, Steinhoff M M
Department of Obstetrics and Gynecology, University of Connecticut Health Center, Farmington 06030.
J Assist Reprod Genet. 1992 Oct;9(5):491-7. doi: 10.1007/BF01204058.
When performing IVF, the clinician is frequently confronted with the failure of fertilization. When the standard parameters to evaluate the male factor are "within normal limits," the conclusion is often made that the lack of fertilization is most likely due to "poor egg quality." These two cases demonstrate the fallacy of this approach and support a more rigorous evaluation of the male factor. Ultrastructural analysis of sperm is underutilized and, as demonstrated by these two cases, can play an essential role in this evaluation process.
在进行体外受精（IVF）时，临床医生经常面临受精失败的情况。当评估男性因素的标准参数“在正常范围内”时，往往会得出受精失败很可能是由于“卵子质量差”的结论。这两个案例证明了这种方法的错误，并支持对男性因素进行更严格的评估。精子的超微结构分析未得到充分利用，而这两个案例表明，它在这个评估过程中可以发挥重要作用。
