• E Ferrazzi, L Frigerio, V Savasi, P Vergani, F Prefumo, S Barresi, S Bianchi, E Ciriello, F Facchinetti, M T Gervasi, E Iurlaro, A Kustermann, G Mangili, F Mosca, L Patanè, D Spazzini, A Spinillo, G Trojano, M Vignali, A Villa, G V Zuccotti, F Parazzini, and I Cetin.
• Department of Woman, Child and Neonate, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
• BJOG. 2020 Aug 1; 127 (9): 1116-1121.

ObjectiveTo report mode of delivery and immediate neonatal outcome in women infected with COVID-19.DesignRetrospective study.SettingTwelve hospitals in northern Italy.ParticipantsPregnant women with COVID-19-confirmed infection who delivered.ExposureCOVID 19 infection in pregnancy.MethodsSARS-CoV-2-infected women who were admitted and delivered from 1 to 20 March 2020 were eligible. Data were collected from the clinical records using a standardised questionnaire on maternal general characteristics, any medical or obstetric co-morbidity, course of pregnancy, clinical signs and symptoms, treatment of COVID 19 infection, mode of delivery, neonatal data and breastfeeding.Main Outcome And MeasuresData on mode of delivery and neonatal outcome.ResultsIn all, 42 women with COVID-19 delivered at the participating centres; 24 (57.1%, 95% CI 41.0-72.3) delivered vaginally. An elective caesarean section was performed in 18/42 (42.9%, 95% CI 27.7-59.0) cases: in eight cases the indication was unrelated to COVID-19 infection. Pneumonia was diagnosed in 19/42 (45.2%, 95% CI 29.8-61.3) cases: of these, 7/19 (36.8%, 95% CI 16.3-61.6) required oxygen support and 4/19 (21.1%, 95% CI 6.1-45.6) were admitted to a critical care unit. Two women with COVID-19 breastfed without a mask because infection was diagnosed in the postpartum period: their newborns tested positive for SARS-Cov-2 infection. In one case, a newborn had a positive test after a vaginal operative delivery.ConclusionsAlthough postpartum infection cannot be excluded with 100% certainty, these findings suggest that vaginal delivery is associated with a low risk of intrapartum SARS-Cov-2 transmission to the newborn.Tweetable AbstractThis study suggests that vaginal delivery may be associated with a low risk of intrapartum SARS-Cov-2 transmission to the newborn.© 2020 Royal College of Obstetricians and Gynaecologists.

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