ISSN 1674-3865  CN 21-1569/R
主管:国家卫生和计划生育委员会
主办:中国医师协会
   辽宁省基础医学研究所
   辽宁中医药大学附属医院

Chinese Pediatrics of Integrated Traditional and Western Medicine ›› 2025, Vol. 17 ›› Issue (3): 237-241.doi: 10.20274/j.cnki.issn.1674-3865.2025.03.009

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Value of white blood cell count combined with C-reactive protein in umbilical cord blood for the early diagnosis of early⁃onset neonatal sepsis

Zongli CHEN1, Siqian CAI2, Guangfei LI3, Lu LI1, Keyong LUO1()   

  1. 1.The First People's Hospital of Zunyi/The Third Affiliated Hospital of Zunyi Medical University,Zunyi 563000,China
    2.Renhuai Maternal and Child Health Hospital, Renhuai 564500,China
    3.Wuchuan County People's Hospital, Wuchuan 564300,China
  • Received:2025-01-13 Revised:2025-03-08 Published:2025-06-25 Online:2025-06-25
  • Contact: Keyong LUO E-mail:339350772@qq.com
  • Supported by:
    Scientific Research Project of Higher Education Institutions of the Department of Education of Guizhou Province

Abstract:

Objective To explore the value of white blood cell count combined with C-reactive protein in umbilical cord blood for the early diagnosis of early?onset neonatal sepsis. Methods A prospective nested case?control study was conducted in 184 newborns with suspected early?onset sepsis admitted to the neonatal departments of three hospitals in Zunyi area from October 2022 to September 2024. They were divided into the sepsis group(122 cases) and the non?sepsis group(62 cases) according to whether they were finally diagnosed with neonatal EOS. The white blood cell count and C-reactive protein in umbilical cord blood of the two groups were compared, and the ROC curve was used to analyze the value of the white blood cell count combined with C-reactive protein for the early diagnosis of neonatal EOS. Results The white blood cell(WBC) count and level of C-reactive protein in the sepsis group were higher than those in the non?sepsis group, and there were statistical differences(P<0.05). ROC curve analysis showed that the diagnostic value of the combined detection was significantly higher than that of detecting WBC or CRP alone. According to the area under the curve (AUC), the order of diagnostic value was: WBC+CRP > CRP > WBC. Regarding the diagnostic efficacy: the AUC was 0.901, the sensitivity was 0.857, and the specificity was 0.826. Conclusion The WBC and CRP levels in the umbilical cord blood of neonates with EOS are highly expressed, which has good clinical application value for the early diagnosis of neonatal EOS. Meanwhile, obtaining blood samples is non?invasive and painless, which can largely make up for the shortcomings of the current peripheral blood detection, such as being highly traumatic. At the same time, the detection techniques of WBC and CRP are mature and inexpensive with short duration, which is expected to serve as beneficial supplements to the early diagnostic indicators of early?onset sepsis (EOS) in neonates.

Key words: Early?onset sepsis in neonates, Umbilical cord blood, C-reactive protein, White blood cell count, Early diagnosis

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