title: In vitro fertilisation when normal sperm morphology is less than fifteen per cent. Results of in vitro fertilisation and embryo transfer at H.F. Verwoerd Hospital, Pretoria.
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 greater than or equal to 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.
authors.affiliation: Department of Obstetrics and Gynaecology, University of Pretoria.
authors.forename: C B
authors.initials: CB
authors.lastname: Sevenster
authors.forename: E
authors.initials: E
authors.lastname: Bosman
authors.forename: H
authors.initials: H
authors.lastname: Kruger
authors.forename: F L
authors.initials: FL
authors.lastname: Fourie
authors.forename: P
authors.initials: P
authors.lastname: Bekker
mesh_terms: D004624:Embryo Transfer; D005307:Fertilization in Vitro; D006801:Humans; D008297:Male; D013094:Spermatozoa / Q000473:pathology*