Human Reproduction, Vol 12, 1969-1973, Copyright © 1997 by Oxford University Press
ME Coccia, C Becattini, L Criscuoli, B Fuzzi and G Scarselli
Several tests based on semen variables have been proposed to predict the
fertilization rate in the presence of male factor infertility, but their
significance remains unclear. We investigated the utility of a screening
test based on sperm survival (SST) to predict the outcome of in-vitro
fertilization (IVF) cycles in the presence of male factor infertility. The
SST was considered normal when the percentage of motile spermatozoa 24 h
after oocyte insemination was > or =50%. The sperm survival test yielded
abnormal results in <90% of cycles which were unsuccessful. The
sensitivity of the SST was 87% and specificity 65% with a positive
predictive value of 90% in the male factor group. We believe that the SST
may be a useful predictor of the IVF cycle outcome and we propose its
introduction into the routine preliminary evaluation of semen samples in
cases of male factor infertility.
ARTICLES
A sperm survival test and in-vitro fertilization outcome in the presence of male factor infertility
Department of Obstetrics and Gynaecology, Ospedale di Careggi, Florence, Italy.
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