published from January 1st to 27th of December 2020. Two independent reviewers evaluated studies using the STROBE statement in combination with the CERQual quality assessment of findings.
Total 1387 articles were screened and a final 24 studies evaluated (220 1st/2nd trimesters COVID-19 pregnant women). 132/220 (60%) were symptomatic, most commonly with fever (86/220=39%) or cough (73/220=33%). Minority of studies reported complications, notably preeclampsia (2/15 patients-13%). 3 cases of maternal death were reported. Majority of neonates had unreported status concerning the outcome of pregnancy. Neonatal death occurred in 17 cases (including one chemical pregnancy, 5 miscarriages, 2 IUFD, 6 stillbirths and 3 abortions)
Majority of reported mothers who contracted COVID-19 during 1st/2nd trimesters are yet to complete their pregnancy. Usually, mothers are discharged from the hospital without any serious complications, however, placental inflammation/fibrin deposition and neonatal death has been reported in a number of cases.