The Diagnostic Value of Neutrophil and Monocyte Cell Population Data Obtained From a Hematology Analyzer in Neonatal Sepsis

We aimed to investigate the diagnostic value of leukocyte cell population data (CPD) parameters obtained from an automated hematology analyzer to be able to use it in the diagnosis of neonatal sepsis. Our study was a retrospective and cross-sectional analysis. The neonates were classified into 3 groups: culture-positive sepsis (n = 20), clinical sepsis (n = 87), and control (n = 269). CPD parameters were determined during complete blood count (CBC) by volume-conductivity-scatter (VCS) technology with DxH 900 Coulter Cell Analyzer. Mean neutrophil volume (MNVNE), standard deviations of volumes of neutrophils (SDVNE), standard deviations of volumes of monocytes (SDVMO), and monocyte distribution width (MDW) were significantly increased in the culture-positive sepsis group compared with the clinical sepsis and control groups ( P < .05). We have demonstrated the diagnostic utility of leukocyte CPD parameters, especially MNVNE, MDW, and their combination, for neonatal sepsis. These parameters are advantageous because they are obtained during routine CBC analysis without the need for additional blood collection and extra costs.