Hospital-acquired infections in preterm infants with gestational age <32 weeks: a retrospective study of clinical characteristics, pathogen distribution, and associated factors - Summary - MDSpire

Hospital-acquired infections in preterm infants with gestational age <32 weeks: a retrospective study of clinical characteristics, pathogen distribution, and associated factors

  • By

  • Yi-Mei Yang

  • Yan Dai

  • Yu-Yan Xie

  • Kun-Ling Song

  • Liu-Qing Li

  • Hui-He Tang

  • Di-Wen Zhang

  • June 15, 2026

  • 0 min

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Objective:

To describe the incidence, site distribution, and pathogen profile of nosocomial infections in preterm infants born at <32 weeks’ gestation, identify independent risk and protective factors, and assess the association between nosocomial infection and major neonatal complications.

Approach:
    Key Findings:
    • 31.18% of infants developed nosocomial infections, with an episode rate of 35.88%.
    • Respiratory tract infections were the most common, with Klebsiella pneumoniae being the predominant pathogen.
    • PICC catheterisation and 25-hydroxyvitamin D deficiency were identified as independent risk factors for infection.
    • Delayed cord clamping was found to be independently protective against infections.
    • BPD incidence was significantly higher in the infection group compared to the non-infection group.
    Interpretation:

    Nosocomial infections significantly affect preterm infants <32 weeks’ gestation, with specific modifiable factors influencing infection risk.

    Limitations:
    • Single-centre study may limit generalizability of findings.
    • Retrospective design may introduce biases in data collection and interpretation.
    Conclusion:

    The study highlights the prevalence of nosocomial infections in preterm infants and suggests modifiable factors for potential infection prevention.

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