Clinical characteristics and pregnancy outcome of pregnancy complicated with novel coronavirus infection during the omicron epidemic period / 中国综合临床

ABSTRACT

Objective:To explore the clinical characteristics and pregnancy outcomes of novel coronavirus disease 2019 (COVID-19) in pregnancy during the prevalence of Omikjon.Methods:Retrospective analysis of the clinical data of 65 pregnant women (COVID-19 group) admitted to Beijing Friendship Hospital Affiliated to Capital Medical University from November 1 to December 24, 2022, who received COVID-19 in late pregnancy and delivered, including 64 mild cases and 1 medium case. In addition, 182 pregnant women with negative detection of novel coronavirus nucleic acid due to obstetric factors were selected as the control group. Compare the perinatal data, pregnancy complications, delivery related indicators, and neonatal outcomes between the two groups. To analyze the detection results of novel coronavirus in newborns delivered by COVID-19 pregnant women. The measurement data is represented by xˉ± s, and independent sample t-test is used for inter group comparison; Counting data is represented by examples(%), and comparisons between groups are conducted using χ 2 test or Fisher's exact probability method. Results:There was no statistically significant difference between the two groups in terms of delivery age, gestational age, pregnancy complications, cesarean section rate, perinatal bleeding volume and the amount of hemostatic medication used, newborn birth weight, neonatal asphyxia, and neonatal intensive care unit (NICU) transfer rate (all P>0.05). The proportion of amniotic fluid reduction in the COVID-19 combination was higher than that in the control group [7.69%(5/65) vs 0.55% (1/182)], with a statistically significant difference ( P=0.006). In COVID-19 group, 3 out of 5 pregnant women with amniotic fluid decrease had fever for 3-5 days before amniotic fluid decrease. After intravenous fluid replacement, the amniotic fluid index was >8 cm, and there was no recurrent amniotic fluid decrease during pregnancy. Among 65 newborns in COVID-19 group, 20 were negative for novel coronavirus nucleic acid detection after birth; 45 cases were negative for novel coronavirus antigen detection. After the birth of the newborn, the mother and baby were roomed together and breastfed. Among them, one case was transferred to NICU due to vomiting, one case was transferred to NICU due to nasal obstruction, one case was transferred to NICU due to the mother's fever at birth, and three cases were positive for new coronavirus nucleic acid detection. After general treatment, they recovered and discharged from hospital. Conclusions:During the prevalence of Omikjon, COVID-19 did not increase the risk of pregnancy complications and adverse pregnancy outcomes, and vertical transmission was not found in newborns delivered by COVID-19 pregnant women.