Double vs. Single Intrauterine Insemination per Cycle: Use in Gonadotropin Cycles and in Diagnostic Categories of Ovulatory Dysfunction and Male Factor Infertility

Document Type

Article

Publication Date

3-1-2008

Description

OBJECTIVE: To evaluate the effectiveness of offering double intrauterine insemination (IUI) to clients in our fertility program. STUDY DESIGN: In this prospective, nonrandomized study, 595 couples with ovulatory dysfunction, endometriosis, male factor, unexplained, tubal factor and combined diagnoses utilizing clomiphene citrate-hCG (CC-hCG), CC-gonadotropin-hCG (CC-Gn-hCG), Gn-hCG, lupron-Gn-hCG (L-Gn-hCG) or luteinizing hormone (LH) surge monitoring of natural cycles were offered single or double IUI in a total of 1,276 cycles. Single IUIs were performed at 36 hours following hCG or the day following LH surge; double IUIs were performed 18 and 36 hours following hCG or the day of and day following LH surge. Single versus double IUI clinical pregnancy outcomes were compared between ovarian stimulation protocols and diagnostic categories. RESULTS: One hundred ten clinical pregnancies occurred for 508 couples in 999 single IUI cycles (fecundity, 11.0%); 45 clinical pregnancies for 174 couples occurred in 277 double IUI cycles (16.2%, p < 0.004). The single IUI group was younger than the double IUI group (32.8 vs 33.7, p < 0.004). Differences for fecundity were noted regarding diagnostic categories between single and double IUI groups (ovulation dysfunction, 12.9% vs 19.5%, p < 0.048, and male factor, 7.9% vs 17.5%, p < 0.030) and ovulation protocols (CC-Gn-hCG, 13.0% vs 21.3%, p < 0.031, and L-Gn-hCG, 4.2% vs 25.0%, p < 0.002). CONCLUSION: Double IUI is superior to single IUI overall, especially when comparing Gn-containing ovarian stimulation protocols or within the ovulatory dysfunction and malefactor diagnostic categories.

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