医学
胚胎移植
优势比
回顾性队列研究
妇科
置信区间
怀孕
倾向得分匹配
泌尿科
内科学
生物
遗传学
作者
Hui Ji,Qiao Zhou,Song Zhang,Dong Li,Chun Zhao,Xiufeng Ling
摘要
Abstract Objective To evaluate the optimal endometrial preparation protocol for frozen–thawed embryo transfer (FET) following hysteroscopic polypectomy. Methods This was a retrospective clinical cohort study involving 464 patients who underwent their first FET after polyp resection between January 2021 and July 2023. The cohorts were categorized into three groups: the natural cycle (NC) group ( n = 139), the ovarian induction (OI) group ( n = 117), and the hormone replacement therapy (HRT) group ( n = 208). Results In the initial unadjusted analysis, both NC and OI cycles exhibited similar pregnancy rates but were associated with significantly higher implantation rate (56.5%, 57.1% vs 42.0%, P < 0.001), clinical pregnancy rate (73.4%, 74.4% vs 57.2%, P = 0.001), and ongoing pregnancy rate (OPR; 67.6%, 63.2% vs 51.0%, P = 0.005) compared to the HRT group. Additionally, the three groups demonstrated comparable abortion rate (7.8%, 14.9% vs 10.9%, P = 0.299). After adjusting for potential confounders in the multiple logistic regression model, the HRT protocol resulted in a 54% significantly lower OPR compared to the NC protocol (adjusted odds ratio [aOR] = 0.46, 95% confidence interval [CI]: 0.28–0.77; P = 0.003). Meanwhile, the OPR difference between the OI protocol and the NC protocol remained insignificant (OI vs NC: aOR = 0.62, 95% CI: 0.35–1.12; P = 0.112). Conclusion The ovulatory‐FET scheme (NC and OI) following hysteroscopic polyp resection displayed promising clinical outcomes compared with HRT‐FET scheme. The regimen without exogenous estrogen administration should be prioritized for endometrial preparation protocol after polypectomy.
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