妊娠期感染 SARS-CoV-2 对胎盘和胎儿的影响。

Impact of SARS-CoV-2 infection during pregnancy on the placenta and fetus.

机构信息

Department of Obstetrics and Gynecology, University of Washington, Seattle, WA, United States of America.

Perinatal Pathology Consulting, Atlanta, Georgia, United States of America.

出版信息

Semin Perinatol. 2024 Jun;48(4):151919. doi: 10.1016/j.semperi.2024.151919. Epub 2024 Jun 6.

Abstract

Pregnant people and their fetuses are vulnerable to adverse health outcomes from coronavirus 2019 disease (COVID-19) due to infection with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). COVID-19 has been associated with higher rates of maternal mortality, preterm birth, and stillbirth. While SARS-CoV-2 infection of the placenta and vertical transmission is rare, this may be due to the typically longer time interval between maternal infection and testing of the placenta and neonate. Placental injury is evident in cases of SARS-CoV-2-associated stillbirth with massive perivillous fibrin deposition, chronic histiocytic intervillositis, and trophoblast necrosis. Maternal COVID-19 can also polarize fetal immunity, which may have long-term effects on neurodevelopment. Although the COVID-19 pandemic continues to evolve, the impact of emerging SARS-CoV-2 variants on placental and perinatal injury/mortality remains concerning for maternal and perinatal health. Here, we highlight the impact of COVID-19 on the placenta and fetus and remaining knowledge gaps.

摘要

由于感染严重急性呼吸综合征冠状病毒 2(SARS-CoV-2),孕妇及其胎儿易受到 2019 年冠状病毒病(COVID-19)不良健康后果的影响。COVID-19 与更高的孕产妇死亡率、早产和死产率有关。虽然胎盘感染 SARS-CoV-2 和垂直传播很少见,但这可能是由于母体感染与胎盘和新生儿检测之间的时间间隔通常较长。胎盘损伤在与 SARS-CoV-2 相关的死产病例中很明显,表现为绒毛膜外大量纤维蛋白沉积、慢性组织细胞绒毛膜炎和滋养层坏死。COVID-19 还可以使胎儿免疫发生极化,这可能对神经发育产生长期影响。尽管 COVID-19 大流行仍在继续演变,但新兴 SARS-CoV-2 变体对胎盘和围产儿损伤/死亡率的影响仍然令人关注,对母婴健康构成威胁。在这里,我们重点介绍 COVID-19 对胎盘和胎儿的影响以及仍然存在的知识空白。

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