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The Role of Peak Serum Estradiol Level in the Prevention of Multiple Pregnancies in Gonadotropin Stimulated Intrauterine Insemination Cycles

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Journal Sci Rep
Specialty Science
Date 2022 Nov 15
PMID 36379965
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Abstract

The objective was to assess whether the measurement of serum estradiol (E) level on trigger day in controlled ovarian stimulation with intrauterine insemination (COS-IUI) cycles helps lower the multiple pregnancy (MP) rate. We performed a unicentric observational study. We included all patients who underwent COS-IUI and had a subsequent clinical pregnancy (CP) between 2011 and 2019. Our main outcome measure was the area under Receiver-Operating Characteristic (ROC) curve. We included 455 clinical pregnancies (CP) obtained from 3387 COS-IUI cycles: 418 singletons, 35 twins, and 2 triplets. The CP, MP, and live birth rates were respectively 13.4%, 8.1% and 10.8%. The area under ROC curve for peak serum E was 0.60 (0.52-0.69). The mean E level was comparable between singletons and MP (260.1 ± 156.1 pg/mL vs. 293.0 ± 133.4 pg/mL, p = 0.21, respectively). Univariate and multivariate logistic regression analysis showed that E level was not predictive of MP rate (aOR: 1.13 (0.93-1.37) and 1.06 (0.85-1.32), respectively). Our study shows that, when strict cancelation criteria based on the woman's age and follicular response on ultrasound are applied, the measurement of peak serum E levels does not help reduce the risk of MP in COS-IUI cycles.

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