Maternal COVID-19 Serological Changes-Comparison between Seroconversion Rate in First and Third Trimesters of Pregnancy and Subsequent Obstetric Complications: A Cohort Study.

Pregnant women are especially vulnerable to respiratory diseases. We aimed to study seroconversion rates during pregnancy in a cohort of consecutive pregnancies tested in the first and third trimesters and to compare the maternal and obstetric complications in the women who seroconverted in the first trimester and those who did so in the third. This was an observational cohort study carried out at the Hospital Universitario de Torrejón, in Madrid, Spain, during the first peak of the COVID-19 pandemic. All consecutive singleton pregnancies with a viable fetus attending their 11-13-week scan between 1 January and 15 May 2020 were included and seropositive women for SARS-CoV2 were monthly follow up until delivery. Antibodies against SARS-CoV-2 (IgA and IgG) were analyzed on stored serum samples obtained from first- and third-trimester routine antenatal bloods in 470 pregnant women. Antibodies against SARS-CoV-2 were detected in 31 (6.6%) women in the first trimester and in 66 (14.0%) in the third trimester, including 48 (10.2%) that were negative in the first trimester (seroconversion during pregnancy). Although the rate of infection was significantly higher in the third versus the first trimester (p = 0.003), no significant differences in maternal or obstetric complications were observed in women testing positive in the first versus the third trimester.

Higroma quístico cervical en el primer trimestre. Resultados perinatales / Cervical cystic hygroma in the first trimester. Perinatal results

Objetivos: Valorar la evolución antenatal y perinatal de fetos con diagnóstico de higroma quístico cervical. Material y métodos: Se estudió a 33 gestantes con diagnóstico de higroma quístico cervical fetal. A las mujeres que decidieron seguir el embarazo se les realizó estudio cromosómico, valoración morfológica y seguimiento del higroma. Resultados: En nuestra casuística, encontramos una evidente asociación con cromosomopatía (7 [37%] de 19 fetos, con cariotipo confirmado), aunque probablemente el número de fetos con anomalías cromosómicas sea mayor. Por el contrario, únicamente 10 (30%) gestaciones con el diagnóstico de higroma quístico cervical tuvieron un resultado perinatal satisfactorio. Conclusiones: En el caso del higroma quístico cervical, su relativamente fácil diagnóstico, la extensión de los estudios ecográficos y su asociación frecuente a cromosomopatías conducen a la mayoría de las parejas a la interrupción voluntaria del embarazo; no obstante, si se hace el diagnóstico de ausencia de anomalías cromosómicas, ausencia de malformaciones y regresión, se podría considerar un resultado perinatal satisfactorio (AU)

Objectives: To evaluate the prenatal course and perinatal outcomes of fetuses diagnosed with cervical cystic hygroma. Material and methods: A total of 33 pregnant women diagnosed with fetuses with cervical cystic hygroma were studied. Those who decided to continue with their pregnancies underwent a chromosome study, morphological evaluation, and follow-up of the hygroma. Results: In our casuistics, we found a clear association with chromosome disease (seven out of the 19 fetuses with confirmed karyotype [37%]), although the number of fetuses with chromosomal abnormalities is probably higher. In contrast, 10 pregnant women (30%) with a diagnosis of cervical cystic hygroma had a satisfactory perinatal outcome. Conclusions: Because cystic hygroma is relatively easy to diagnose, ultrasonography is widely used and an association with chromosome disease is frequent, most couples choose voluntary interruption of the pregnancy. However, if chromosomal abnormalities and malformations are absent and there is a tendency to regression, a satisfactory perinatal outcome can be considered (AU)