title: Isolated abnormal strict morphology is not a contraindication for intrauterine insemination.
abstract: This study sought to investigate whether isolated abnormal strict morphology (<5% normal forms) and very low strict morphology (0-1% normal forms) affects pregnancy rates in intrauterine insemination (IUI). This was a retrospective study performed at an Academic Medical Center/Reproductive Medicine Center. Four hundred and eight couples were included for 856 IUI cycles. 70 IUI cycles were performed in couples with abnormal strict morphology and otherwise normal semen parameters. Outcomes were measured as clinical pregnancy rate per IUI cycle as documented by fetal heart activity on maternal ultrasound. Clinical pregnancy rate did not significantly differ between the group with abnormal strict morphology [11/70 (15.7%)] and the normal morphology group [39/281 (13.9%)]. Additionally, there was no significant difference between the pregnancy rate in the abnormal morphology group compared to that of our overall institutional IUI pregnancy rate [145/856 (16.9%)]. Furthermore, there was no significant difference between pregnancy rate in the very low morphology group [3/14 (21.4%)] compared to those with normal morphology or the overall IUI pregnancy rate. Patients with isolated abnormal strict morphology have clinical pregnancy rates similar to those with normal morphology for IUI. Even in those with very low normal forms, consideration of IUI for assisted reproduction should not be excluded.
authors.affiliation: Department of Urology, Froedtert Hospital, Medical College of Wisconsin Affiliated Hospitals, Milwaukee, WI, USA.
authors.forename: G M
authors.initials: GM
authors.lastname: Lockwood
authors.affiliation: Department of Obstetrics and Gynecology, Froedtert Hospital, Medical College of Wisconsin Affiliated Hospitals, Milwaukee, WI, USA.
authors.forename: N E
authors.initials: NE
authors.lastname: Deveneau
authors.affiliation: Department of Urology, Froedtert Hospital, Medical College of Wisconsin Affiliated Hospitals, Milwaukee, WI, USA.
authors.forename: A N
authors.initials: AN
authors.lastname: Shridharani
authors.affiliation: Department of Obstetrics and Gynecology, Froedtert Hospital, Medical College of Wisconsin Affiliated Hospitals, Milwaukee, WI, USA.
authors.forename: E Y
authors.initials: EY
authors.lastname: Strawn
authors.affiliation: Department of Urology, Froedtert Hospital, Medical College of Wisconsin Affiliated Hospitals, Milwaukee, WI, USA.
authors.forename: J I
authors.initials: JI
authors.lastname: Sandlow
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007248:Infertility, Male / Q000473:pathology / Q000503:physiopathology / Q000628:therapy*; D007317:Insemination, Artificial, Homologous; D008297:Male; D011237:Predictive Value of Tests; D011247:Pregnancy; D018873:Pregnancy Rate; D012189:Retrospective Studies; D012307:Risk Factors; D055101:Semen Analysis; D013094:Spermatozoa / Q000473:pathology*; D016896:Treatment Outcome
keywords: assisted reproductive technology; intrauterine insemination; male infertility; strict sperm morphology; teratozoospermia