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<i>In vitro</i> fertilisation when normal sperm morphology is less than fifteen per cent: Results of <i>in vitro</i> fertilisation and embryo transfer at H. F. Verwoerd Hospital, Pretoria


C.B.v.O. Sevenster
E Bosman
H Kruger
F Le R. Fourie
P Bekker

Abstract

The outcome of in vitro fertilisation and embryo transfer in 90 couples where the husband's normal sperm morphology was less than 15% were analysed. Based on the percentage of morphologically normal spermatozoa the patients were divided into three groups: group A - normal morphological features 0 - 5%; group B - 6 - 10%; and group C - 11 - 14%. A control group had normal morphological features ≥ 15%. The fertilisation rate and number of embryos transferred was not significantly different in these groups. However, the pregnancy rate per embryo transfer was significantly different for groups A and B compared with group C and the control group (0% and 5,9% for groups A and B v. 13,9% and 18,3% for group C and the control group, respectively). It is concluded that when the normal sperm morphology is less than 11% the prospect of a pregnancy is poor.


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eISSN: 2078-5135
print ISSN: 0256-9574