Clinical Characteristics and Maternal and Neonatal Outcomes of Pregnant Women Positive, Negative, and Recovered With COVID-19 Pneumonia

Abstract

Background: The pandemic of coronavirus disease 2019 (COVID-19) has caused serious concerns about its potential adverse effects on pregnancy. There are limited data on maternal and neonatal outcomes of pregnant Hispanic women with COVID-19. Methods: This study was a retrospective chart review. This cohort included pregnant females between the ages of 18-60 who had tested positive for COVID-19 and tested negative for COVID-19 from the electronic medical records of Texas Tech Health Sciences Department of OB/GYN clinics, University Medical Center (UMC), and El Paso Children’s Hospital (EPCH) from March 2020 to June 2021, in addition to their neonates. Records were analyzed to collect information on demographics, BMI, gestational age, COVID status at the time of delivery, history of exposure to COVID, signs and symptoms of COVID, presenting symptoms, comorbidities, and treatment of COVID before and after delivery. Further, mode of delivery, pregnancy complications, complications during labor, and adverse outcomes (maternal death, admission to ICU, length of stay in ICU). We also collected diagnostic data. The control group included age-matched pregnant individuals without a diagnosis of COVID. The control group was evaluated for the same variables and outcome assessment. For the neonatal outcomes, the mothers were matched to the neonate. Data collected on neonatal outcomes included demographics, date of delivery, APGAR score, admission to the newborn nursery or NICU, the reason for NICU admission, birthweight, length, head circumference, fetal abnormalities, prematurity, neonatal death, COVID test results, breastfeeding (expressed or direct), and length of hospital stay. We also collected diagnostic data for neonates. Statistical analyses was performed using descriptive statistics for the various variables, a t-test to determine differences between the two groups for the continuous variables, and a chi-square test for the categorical variables. Results: During the period March 21, 2020 - June 15, 2021, 370 pregnant women, out of which 100 women were COVID-positive, 71 women who were recovered, and 188 controls. COVID-positive women had more elevated fibrinogen, WBC, alkaline phosphatase, aspartate aminotransferase, and alanine transaminase but nonsignificant CRP levels. Most of the COVID-positive and COVID recovered women had preeclampsia during pregnancy, 29.24% COVID positive women delivered via C-section, while 68.42% of women delivered vaginally. The mean length of stay was 2.97 days for both groups. There 79.41% of women chose to breastfeed. One maternal death was recorded, while only two women had ICU admissions. Compared to the COVID-positive, the recovered women still had significantly elevated fibrinogen but not ALP, ALT, AST, and CRP. The COVID recovered women had lower counts of vaginal delivery (56.3%) and higher C-section rates (39.4%) among the three groups. The recovered group had higher premature deliveries (18%) than the other two groups (8%, 17%). Among the neonatal outcomes, there were four neonatal deaths in the COVID group, two neonates had COVID transmission during delivery, and 19.4 % of neonates were admitted to the NICU. Among neonatal vitals, blood pressure was higher in the positive (41%) and recovered (32.39%) groups than in controls (27.6%). Neonatal hypoglycemia was also higher in the recovered group (27.5%) than in the positive (17.11%) and control group (18.4%). Conclusions: Severe maternal and neonatal complications were not observed in pregnant women with COVID-19 pneumonia who had a vaginal or cesarean delivery. There were complications observed in women who recovered from COVID during pregnancy.