ABSTRACT
Background
Coronavirus disease 2019 (COVID-19) can affect people of all age groups and it can occasionally cause life-threatening clinical illness in immunologically immature population, especially in newborns. High red cell distribution width (RDW) values were used as early prognostic biomarker of some neonatal diseases. We aimed to determine the prognostic value of red cell distribution width in severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) infected neonates.
Methods
Newborns with positive SARS-CoV-2 polymerase chain reaction (PCR) test from a nasopharyngeal swab sample, who had refractory fever (>38°C and lasting more than 24 hours during hospitalization) screened for multisystem inflammatory syndrome in newborns (MIS-N), systemic inflammatory indexes calculated and cardiologic evaluation performed to these patients. Due to troponin levels (high: >45 ng/L and low: ≤45 ng/L) patients were grouped.
Results
Of the 68 SARS-CoV-2 PCR-positive newborns, 26 patients had refractory fever. Comparison of laboratory findings between the high and low troponin groups showed that RDW and neutrophil/lymphocyte ratio values were significantly higher in patients with high troponin levels (p = 0.022 and p = 0.030, respectively). The cut-off values with optimal sensitivity and specificity were determined as 1.00 for neutrophil/lymphocyte ratio (p = 0.205) and 16.6 for red cell distribution width (p = 0.014). None of the patients died.
Conclusions
Neonatal coronavirus disease 2019 generally has a benign prognosis, but can progress to severe disease and cases of MIS-N are rare. RDW could be prognostic in diagnosis and management of neonates with SARS-CoV-2 infection with high troponin levels.
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