Objective: To investigate the correlation between different clinical features and live birth in patients with severe late-onset ovarian hyperstimulation syndrome (OHSS) after in vitro fertilization-embryo transfer (IVF-ET). Methods: The clinical information of 330 patients who were pregnant after IVF-ET and referred to medical treatments diagnosed as late-onset severe OHSS in Peking University Third Hospital from January 2016 to December 2020 was retrospectively analyzed. The patients were divided into live birth achieved group (n=287) and non-live birth achieved group (n=43) according to pregnancy outcomes, and live birth achieved group was further divided into two subgroups, full-term birth group (n=222) and early-term birth group (n=65) according to gestational week at delivery for better analysis. Single factor and multi-factor analysis were utilized to clarify the influencing factors of both live birth and early-term birth. Results: Among all the patients who received IVF-ET, the incidence of severe OHSS was 0.67% (673/100 758). Among 330 severe late-onset OHSS patients, 42.4% (140/330) had pleural effusion, the incidence of abnormal liver function was 69.4% (229/330), and the live birth rate was 87.0% (287/330). Among the 287 patients who achieved live birth, 55.4% (159/287) had no pleural effusion, 18.5% (53/287) had a small amount of pleural effusion, and 26.1% (75/287) had medium or massive pleural effusion; in the non-live birth achieved group, there were more patients without pleural effusion and less patients with a small amount of pleural effusion; the difference was statistically significant (χ2=6.213, P=0.045). The rate of selective fetal reduction in live birth achieved group was 16.0% (46/287), which was significantly higher than that in the non-live birth achieved group, which was 2.3% (1/43; χ2=5.749, P=0.017). Multivariate logistic regression analysis revealed that moderately abnormal liver function was an independent risk factor for live birth (OR=3.15, 95%CI: 1.60-6.19), while selective fetal reduction was an independent protective factor for live birth (OR=0.13, 95%CI: 0.02-0.96). Additionally, subgroup analysis suggested that twin birth was an independent risk factor for preterm birth (OR=8.54, 95%CI: 4.31-16.91). Conclusions: Moderate hepatic dysfunction may be associated with adverse pregnancy outcomes in patients with severe late-onset OHSS. Selective fetal reduction and singleton pregnancy are recommended to ameliorate live birth rate, full-term delivery rate, also the maternal and neonatal prognosis for patients with multiple pregnancies.
目的： 探讨体外受精-胚胎移植（IVF-ET）治疗后妊娠的重度晚发型卵巢过度刺激综合征（OHSS）患者的不同临床特点与活产结局的相关性。 方法： 回顾性分析2016年1月至2020年12月在北京大学第三医院经IVF-ET治疗后妊娠，其后因重度晚发型OHSS就诊且需住院治疗的330例患者的临床资料。根据妊娠结局分为活产组（n=287）和非活产组（n=43），进一步根据分娩孕周将活产组分为足月产组（n=222）和早产组（n=65）两个亚组，通过单因素和多因素分析明确活产和早产结局的影响因素。 结果： 同期重度OHSS的总发生率为0.67%（673/100 758）。330例重度晚发型OHSS患者中，42.4%（140/330）表现为胸水，肝功能异常发生率为69.4%（229/330），活产率为87.0%（287/330）。287例活产组患者中无胸水者占55.4%（159/287）、少量胸水者占18.5%（53/287）、中大量胸水者占26.1%（75/287），非活产组中无胸水者多于活产组、而少量胸水者少于活产组，两组比较，差异有统计学意义（χ2=6.213，P=0.045）；活产组的减胎率为16.0%（46/287），明显高于非活产组的2.3%（1/43），两组比较，差异有统计学意义（χ2=5.749，P=0.017）。多因素logistic回归显示，肝功能中度异常（OR=3.15，95%CI为1.60~6.19）是活产的独立危险因素，而减胎（OR=0.13，95%CI为0.02~0.96）是活产的独立保护因素，亚组分析提示双胎分娩（OR=8.54，95%CI为4.31~16.91）是早产的独立危险因素。 结论： 中度肝功能异常可能预示着重度晚发型OHSS患者的不良妊娠结局，在给予积极保肝对症治疗的同时，对于合并多胎妊娠者，建议积极减胎，尽量做到单胎妊娠，以提高活产率和足月分娩率、改善母儿预后。.