Objective To report mode of delivery and immediate neonatal outcome in women infected with COVID-19. Design Retrospective study. Setting Twelve hospitals in northern Italy. Participants Pregnant women with COVID-19-confirmed infection who delivered. Exposure COVID 19 infection in pregnancy. Conclusions Although 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.

Objective: To report mode of delivery and immediate neonatal outcome in COVID-19 infected women. Design: This is a retrospective study.. Setting: Twelve hospitals in northern Italy. Participants: Pregnant women with COVID-19 confirmed infection who delivered. Exposure: COVID 19 infection in pregnancy. Methods:SARS-CoV-2 infected women who were admitted and delivered during the period 1-20 march 2020 were eligible. Data were collected from the clinical records using a standardized questionnaire on maternal general characteristics, any medical or obstetric comorbidity, evolution of pregnancy, clinical signs and symptoms, treatment of COVID 19 infection, mode of delivery, neonatal data and breastfeeding Main Outcome and Measure: Data on mode of delivery and neonatal outcome Results: 42 women with COVID-19 delivered at the participating centres: 24(57,1%, 95% CI= 41,0-72,3) delivered vaginally. An elective cesarean section was performed in 18/42 (42,9%, 95%CI 27,7-59,0) cases: in 8 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%,95CI 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 post-partum period: their new-borns tested positive for SARS-Cov-2 infection. In one case a new-born had a positive test after a vaginal operative delivery.Conclusions:. Although post-partum 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 new-born.

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The aim of this work is to evaluate, by means of an alternative method, the fetal lung maturation by means of measurement of the electrical conductivity of the amniotic fluid correlated with the phospholipid content. In vitro measurements were made in some 100 amniotic fluid samples at different gestational stages. A considerable change was observed in the electrical conductivity of the amniotic fluid in the last period of pregnancy, which reflects the increase in phospholipid concentration, when lung maturation is reached. We hope that further investigations, on wider case histories, will enable the application in vivo of the above-mentioned methodology.