Resumen
Introducción: la COVID-19 en el embarazo puede incrementar el riesgo de complicaciones debido a los cambios cardiorrespiratorios e inmunológicos propios de la gestación.
Objetivo: reportar la caracterización epidemiológica de la COVID-19 en población obstétrica mexicana.
Material y métodos: estudio de cohorte en embarazadas con prueba positiva para COVID-19 que fueron seguidas hasta la resolución del embarazo y un mes después.
Resultados: 758 mujeres embarazadas fueron incluidas en el análisis. La media de edad en las madres fue 28.8 ± 6.1 años; la mayoría trabajadoras 497 (65.6%) y de origen urbano (482, 63.6%); el grupo sanguíneo más común fue O 458 (63.0%); 478 (63.0%) fueron primigestas, y más del 25% padecía comorbilidades; las semanas de gestación promedio al contagio fueron 34.4 ± 5.1 semanas; solo 170 gestantes (22.4%) recibieron vacunación; la vacuna más frecuente fue BioNTech Pfizer (96, 60%); no hubo eventos adversos graves atribuibles a la vacunación. La edad gestacional media al nacer fue de 35.4 ± 5.2 semanas; el 85% de los embarazos se interrumpieron por cesárea; la complicación más frecuente fue la prematurez con 406 (53.5%), seguida de preeclampsia con 199 (26.2%); hubo 5 casos de muerte materna y 39 casos de muerte perinatal.
Conclusiones: la COVID-19 en el embarazo aumenta el riesgo de parto prematuro, preeclampsia y muerte materna. Al menos en esta serie la vacunación contra COVID-19 no mostró riesgo para las mujeres embarazadas y sus recién nacidos.
Abstract
Background: COVID-19 in pregnancy can increase the risk of complications due to the cardiorespiratory and immunological changes typical of pregnancy.
Objective: To report the epidemiological characterization of COVID-19 in Mexican pregnant women.
Material and methods: Cohort study on pregnant women with a positive COVID-19 test, which were followed until delivery and one month later.
Results: 758 pregnant women were included in the analysis. Mothers’ mean age was 28.8 ± 6.1 years; the majority were workers 497 (65.6%) and with an urban origin (482, 63.6%); the most common blood group was O with 458 (63.0%); 478 (63.0%) were nulliparous women and more than 25% had some comorbidities; the average gestation weeks at infection were 34.4 ± 5.1 weeks; only 170 pregnant women (22.4%) received vaccination; the most frequent vaccine was BioNTech Pfizer (96, 60%); there were no serious adverse events attributed to vaccination. The mean gestational age at delivery was 35.4 ± 5.2 weeks; 85% of pregnancies were cesarean section; the most frequent complication was prematurity (406, 53.5%), followed by preeclampsia (199, 26.2%); there were 5 cases of maternal death and 39 cases of perinatal death.
Conclusions: COVID-19 in pregnancy increases the risk of preterm birth, preeclampsia, and maternal death. Vaccination against COVID-19 in this series showed no risk for pregnant women and their newborns.
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