Objectives To investigate the effect of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) on fetal Doppler parameters. Methods This was a prospective case-control study conducted in Ankara City Hospital with confirmed SARS-CoV-2 infected pregnants between August 1, 2020 and October 1, 2020. There were 54 COVID-19 confirmed pregnant women and 97 age-matched pregnant women as a control group between 28 and 39 weeks. Infection was confirmed based on positive real-time polymerase-chain reaction results. Demographic features, uterine artery (right, left), umblical artery, middle cerebral artery, ductus venosus, cerebro-placental ratio, and cerebral-placental-uterine ratio Doppler parameters were investigated in both groups. Results Two groups were similar in terms of demographic features and no difference was found for fetal Doppler parameters. Conclusions COVID-19 seems to have no adverse effect on fetoplacental circulation in mild and moderate patients during the acute phase of the infection.

中文翻译：

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评估 COVID-19 感染孕妇的胎儿多普勒参数：一项前瞻性病例对照研究

目的 研究严重急性呼吸系统综合症冠状病毒 2 (SARS-CoV-2) 对胎儿多普勒参数的影响。方法 这是一项前瞻性病例对照研究，在 2020 年 8 月 1 日至 2020 年 10 月 1 日期间在安卡拉市医院进行，确诊孕妇感染了 SARS-CoV-2。有 54 名 COVID-19 确诊孕妇和 97 名年龄匹配的孕妇作为 28 至 39 周的对照组。根据阳性实时聚合酶链反应结果确认感染。研究了两组的人口学特征、子宫动脉（右、左）、脐动脉、大脑中动脉、静脉导管、脑-胎盘比和脑-胎盘-子宫比多普勒参数。结果 两组人口统计学特征相似，胎儿多普勒参数无差异。结论 COVID-19 在感染的急性期似乎对轻中度患者的胎盘循环没有不利影响。