Randomized controlled trial of Timing of intrauterine insemination
Publish place: 3rd debatable topics on obstetrics gynecology & infertility
Publish Year: 1398
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
DTOGIMED03_107
تاریخ نمایه سازی: 26 بهمن 1398
Abstract:
Background and Aim : Controlled ovarian stimulation (COS) with intrauterine insemination (IUI) is aneffective treatment in cases of cervical factor, unexplained infertility and mild male factor. The optimaltiming of IUI after human chorionic gonadotrophin (hCG) after COS with letrozole is debatable and maybe a factor limiting success of same. This study was designed to scientifically determine if variation in thetiming of IUI could affect the cycle outcome.Methods : In a prospective randomized trial couples with mild male factor and unexplained infertility whounderwent COS with IUI were recruited. COS was achieved with letrozole The dose of letrozole used hasvaried between 5-7.5 mg. Two hundred women underwent 690 cycles of IUI. Women were randomized totwo groups: group I (100 patients, 351 cycles) had IUI 36 h after hCG, while group II (100 patients, 339cycles) had IUI 24 h after hCG. Primary outcome included pregnancy rate per couple and per cycle.Results : The cumulative ongoing pregnancy rate after a maximum of four cycles was 18.2% in group 1(38 ongoing pregnancies) and 29.2% in group 2 (48 ongoing pregnancies) (RR 0.78 95% CI 0.57 to 1.07).Ongoing pregnancy rates per cycle in IUI group I were 6.8%, 10.5%, 9.5% and 7.4% for the first, second,third and fourth IUI cycle while in IUI group II, ongoing pregnancy rates were 8.3%, 16.4%, 13.5% and9.0% for the first, second, third and fourth IUI cycle respectively.Conclusion : Altering timing of IUI after COS does enhance pregnancy rates. IUI 24 h after hCG hasmarginally better pregnancy rates than 36 h. The lack of statistical significance indicates need for largerstudies to draw guidelines.
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Authors
Masoumeh Dadashaliha
Gynecologist & obstetrics, Faculty Member of Medicine School, Qazvin University of Medical Science, Qazvin, Iran
Somayeh Falah
MSc of Midwifery Faculty Member of Nursing and Midwifery school, Qazvin University of Medical Science,Qazvin, Iran