• F M Helmerhorst, H A A M Van Vliet, T Gornas, M J J Finken, and D A Grimes.
• Leiden University Medical Center, Gynaecology & Reproductive Medicine, P.O.Box 9600, Leiden, Netherlands NL 2300 RC. F.M.Helmerhorst@LUMC.nl
• Cochrane Db Syst Rev. 2005 Oct 19; 2005 (4): CD002809CD002809.

BackgroundThe postcoital test has poor diagnostic and prognostic characteristics. Nevertheless, some physicians believe it can identify scanty or abnormal mucus that might impair fertility. One way to avoid 'hostile' cervical mucus is intrauterine insemination. With this technique, the physician injects sperm directly into the uterine cavity through a small catheter passed through the cervix; the theory is to bypass the "hostile" cervical mucus. Although most gynaecological societies do not endorse use of intrauterine insemination for hostile cervical mucus, some physicians consider it an effective treatment for women with infertility thought due to cervical mucus problems.ObjectivesThe aim of this review was to determine the effectiveness of intrauterine insemination with or without ovarian stimulation in women with cervical hostility who failed to conceive.Search StrategyWe searched Cochrane Central Register of Controlled Trials (CENTRAL) on The Cochrane Library Issue 2, 2005, MEDLINE (1966 to June 2005), EMBASE (1980 to June 2005), POPLINE (to June 2005) and LILACS (to June 2005). In addition, we contacted experts and searched the reference list of relevant articles and book chapters.Selection CriteriaWe included randomized and quasi-randomized controlled trials comparing intrauterine insemination with intercourse timed at the presumed fertile period. Participants were women with cervical hostility who failed to conceive for at least one year.Data Collection And AnalysisWe assessed the titles and abstracts of 386 publications and two reviewers independently abstracted data on methods and results from five studies identified for inclusion. The main outcome is pregnancy rate per couple.Main ResultsWe did not pool the outcomes of the included five studies in a meta-analysis due to the methodological quality of the trials and variations in the patient characteristics and interventions. Narrative summaries of the outcomes are provided. Each study was too small for a clinically relevant conclusion. None of the studies provided information on important outcomes such as spontaneous abortion, multiple pregnancies, and ovarian hyperstimulation syndrome.Authors' ConclusionsThere is no evidence from the published studies that intrauterine insemination is an effective treatment for cervical hostility. Given the poor diagnostic and prognostic properties of the postcoital test and the observation that the test has no benefit on pregnancy rates, intrauterine insemination (with or without ovarian stimulation) is unlikely to be a useful treatment for putative problems identified by postcoital testing.

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