Abstract

Among the problems associated with a new coronavirus infection, the possibility of its occurrence in pregnant women plays an important role. Until now, there is very little data on perinatal COVID-19, and there are no descriptions of structural changes in the afterbirth at all. Material and methods. A clinical and morphological analysis of 6 cases in which women with verified COVID-19 gave birth in an infectious hospital was performed. In all cases, the placenta was examined in detail morphologically using antibodies to the nucleoprotein and spike (S1 subunit spike protein) SARS-CoV-2. COVID-19 Results. It is shown that the clinical course of COVID-19 in pregnant women may be different, three were in the intensive care unit, including one was shown to be on a ventilator. 4 children were born at term, 2 children prematurely (at 31- 33 weeks of pregnancy). The condition of children in 5 nab. was assessed as satisfactory, only one child in serious condition was transferred to a children’s hospital. Intrauterine infection with the polymerase chain reaction documented in a single observation. When histological examination of the afterbirth in all observations, both in the maternal and fetal parts, changes characteristic of RNA viral infection was detected. Both of the studied antigens were found in moderate amounts in IHC. Conclusions. Intrauterine transplacental infection with a new coronavirus is certainly possible. Its frequency and clinical significance require further comprehensive study.

Highlights

  • Among the problems associated with a new coronavirus infection, the possibility of its occurrence in pregnant women plays an important role

  • Введение Широкое распространение во всём мире инфекции, вызванной новым коронавирусом (COVID-19), приводит к заболеванию и значительного числа

  • В качестве характерных изменений во всех наблюдениях отмечено набухание ядер эндотелиальных клеток

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Summary

Оригинальное исследование

Санкт-Петербург, Россия 2Национальный медицинский исследовательский центр им. Sukhanova Clinical Infectious diseases hospital named after S. P. Botkin, Saint-Petersburg, Russia 2National medical research center named after V.A. Almazov, Saint-Petersburg, Russia. Во всех случаях плаценты были детально исследованы морфологически с использованием антител к нуклеопротеину и белку капсида (S1 subunit spike protein) вируса SARS-CoV-2. Что клиническое течение COVID-19 у беременных женщин может быть различным, 3 находились в отделении интенсивной терапии, в том числе 1 на инвазивной вентиляции легких. Внутриутробное инфицирование с помощью ПЦР документировано в 1 наблюдении. При гистологическом исследовании последов во всех наблюдениях, как в материнской, так и плодной частях, были выявлены изменения, характерные для РНК вирусной инфекции. Его частота и клиническая значимость требуют дальнейшего комплексного изучения. Ключевые слова: новая коронавирусная инфекция, COVID-19, SARS-CoV-2, перинатальная инфекция, поражение плаценты, иммуногистохимия

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