A clinical analysis of sepsis in very low birth weight infants
2021
OBJECTIVE To study the incidence and clinical features of sepsis in very low birth weight (VLBW) infants. METHODS The clinical data were collected from VLBW infants, with a birth weight of < 1 500 g, who were admitted to the Department of Neonatology, Maternity Hospital Affiliated to Nanjing Medical University, from January 2019 to June 2020. The incidence of sepsis, distribution of pathogenic bacteria, and risk factors for sepsis were analyzed. RESULTS A total of 369 infants were enrolled, and 138 infants had sepsis, among whom 84 had early-onset sepsis (EOS) and 54 had late-onset sepsis (LOS). Enterococcus faecalis (24%) and Streptococcus (21%) were the main pathogenic bacteria in infants with EOS, and Staphylococcus (41%) and Enterobacter (29%) were the main pathogenic bacteria in infants with LOS. The incidence of EOS and LOS decreased with the increase of gestational age and birth weight (P < 0.05). The multivariate logistic regression analysis showed that a high birth weight was a protective factor against EOS (OR=0.996, 95%CI:0.993-0.998, P < 0.05), while vaginal delivery (OR=2.781, 95%CI:1.190-6.500, P < 0.05) was a risk factor for EOS, and long duration of parenteral nutrition was a risk factor for LOS (OR=1.129, 95%CI:1.067-1.194, P < 0.05). CONCLUSIONS Enterococcus faecalis is the most common pathogenic bacteria for EOS, and Staphylococcus is the most common pathogenic bacterium for LOS in VLBW infants. A high birth weight may reduce the risk of EOS in VLBW infants, while vaginal delivery may increase the risk of EOS. Prolonged parenteral nutrition may increase the risk of LOS.
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