2016年10月17日

女性結紮病患施行試管若無明顯精蟲異常應優先採用IVF
IVF vs ICSI懷孕率無明顯差異


 2016 Oct 13. [Epub ahead of print]

Use of ICSI in IVF cycles in women with tubal ligation does not improve pregnancy or live birth rates.

Abstract

STUDY QUESTION:

Does ICSI improve outcomes in ART cycles without male factor, specifically in couples with a history of tubal ligation as their infertility diagnosis?

SUMMARY ANSWER:

The use of ICSI showed no significant improvement in fertilization rate and resulted in lower pregnancy and live birth (LB) rates for women with the diagnosis of tubal ligation and no male factor.

WHAT IS KNOWN ALREADY:

Prior studies have suggested that ICSI use does not improve fertilization, pregnancy or LB rates in couples with non-male factor infertility. However, it is unknown whether couples with tubal ligation only diagnosis and therefore iatrogenic infertility could benefit from the use of ICSI during their ART cycles.

STUDY DESIGN, SIZE, DURATION:

Longitudinal cohort of nationally reported cycles in the Society for Assisted Reproductive Technology Clinic Outcomes Reporting System (SART CORS) of ART cycles performed in the USA between 2004 and 2012.

PARTICIPANTS/MATERIALS, SETTING, METHODS:

There was a total of 8102 first autologous fresh ART cycles from women with the diagnosis of tubal ligation only and no reported male factor in the SART database. Of these, 957 were canceled cycles and were excluded from the final analysis. The remaining cycles were categorized by the use of conventional IVF (IVF, n = 3956 cycles) or ICSI (n = 3189 cycles). The odds of fertilization, clinical intrauterine gestation (CIG) and LB were calculated by logistic regression modeling, and the adjusted odds ratios (AORs) with 95% confidence intervals were calculated by adjusting for the confounders of year of treatment, maternal age, race and ethnicity, gravidity, number of oocytes retrieved, day of embryo transfer and number of embryos transferred.

MAIN RESULTS AND THE ROLE OF CHANCE:

The main outcome measures of the study were odds of fertilization (2PN/total oocytes), clinical intrauterine gestation (CIG/cycle) and live birth (LB/cycle). The fertilization rate was higher in the ICSI versus IVF group (57.5% vs 49.1%); however, after adjustment this trend was no longer significant (AOR 1.14, 0.97-1.35). Interestingly, both odds of CIG (AOR 0.78, 0.70-0.86), and odds of LB were lower (AOR 0.77, 0.69-0.85) in the ICSI group. Plurality at birth, mean length of gestation and birth weight did not differ between the two groups.

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