Dr Vallerie Vannevel presented at the RCOG Virtual World Congress9-12 June 2021 on
Placental histology and umbilical artery doppler in pregnant women with severe COVID19
BACKGROUND: COVID-19 is known to in-part be a vascular disease. SARS-CoV-2 has been shown to affect the placenta, and varied histological pictures have been described. Vascular placental disease leads to reduced placental blood flow, and increases the resistance of blood flow in the placenta. This can be detected by increased resistance indices measured by doppler ultrasound. Study aim: To investigate associations between severe COVID-19 disease in pregnancy, abnormalities in the doppler ultrasound of the fetal umbilical artery (UA), and placental histology.