Home    中文  
 
  • Search
  • lucene Search
  • Citation
  • Fig/Tab
  • Adv Search
Just Accepted  |  Current Issue  |  Archive  |  Featured Articles  |  Most Read  |  Most Download  |  Most Cited

Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) ›› 2024, Vol. 18 ›› Issue (06): 350-359. doi: 10.3877/cma.j.issn.1674-1358.2024.06.005

• Research Articles • Previous Articles     Next Articles

Clinical characteristics of premature infants with eosinophilia increase at different gestational ages and influencing factors of infectious diseases

Ning Xia1,(), Pinfang Zeng1, Hong Wan1   

  1. 1.Department of Pediatrics,Leshan Maternal and Child Health Hospital of Sichuan Province, Leshan 614000, China
  • Received:2024-06-07 Online:2024-12-15 Published:2025-03-06
  • Contact: Ning Xia

Abstract:

Objective

To explore the clinical characteristics of premature infants with eosinophilia (EOS)increase at different gestational ages, the influencing factors of infectious diseases and the correlation between incidences of different infectious diseases and the degree of EOS increase.

Methods

Total of 232 cases of EOSincreased preterm infants admitted to Leshan Maternal and Child Health Hospital from May 2020 to June 2022 were collected, retrospectively.According to the gestational age, the preterm infants were divided into the very preterm group (27 weeks ≤ gestational age < 32 weeks), the middle preterm group (32 weeks ≤ gestational age < 34 weeks) and the late preterm group (34 weeks ≤ gestational age < 37 weeks), which were 50, 58 and 124 cases, respectively.After matching according to 1∶1∶1 tendency, there were 48 cases in every group.Gender, perinatal high maternal factors, pulmonary hemorrhage, cesarean section, antibiotic use, mechanical ventilation, blood transfusion, leukocyte increase, gastrointestinal abnormalities, intrauterine asphyxia,maternal conditions, infectious diseases, multiple fetuses, premature rupture of membranes, gestational diabetes mellitus, gestational hypertension, amniotic fluid contamination, placenta previa, intrauterine infection, feeding intolerance and birth gestational age, birth weight, birth head circumference, birth length,maternal age, gestational age, birth weight, birth head circumference, birth length, procalcitonin (PCT),interleukin-6 (IL-6) and tumor necrosis factor α (TNF-α) of the three groups were compared, respectively.According to whether complicated with infectious diseases, 144 matched children were divided into infectious disease group (41 cases) and non-infectious disease group (103 cases).Birth weight, birth head circumference, birth length, cesarean section, multiple births, intrauterine asphyxia, premature rupture of membranes, gestational diabetes mellitus, gestational hypertension, amniotic fluid contamination, placenta previa, intrauterine infection, PCT, IL-6, TNF-α, gestational age and EOS count were compared between the two groups.The influencing factors of infectious diseases in children with increased EOS was analyzed by Logistic regression analysis.The correlation between the increase degree of EOS in preterm infants and incidences of common infectious diseases were analyzed by smooth curve fitting, while the threshold effect were analyzed.

Results

After matched, gestational age (F = 18.633, P < 0.001), birth weight (F = 5.387, P < 0.001),head circumference at birth (F = 4.330, P < 0.001), length at birth (F = 4.708, P < 0.001), cesarean section(χ2 = 8.792, P = 0.012), antibiotic use (χ2 = 13.580, P = 0.001), infectious diseases [necrotizing enterocolitis(χ2 = 6.257, P = 0.043), septicemia (χ2 = 7.412, P = 0.024), meningitis (χ2 = 7.304, P = 0.026), pneumonia(χ2 = 7.304, P = 0.026), urinary system infection (χ2 = 7.412, P = 0.024)], laboratory indicators [PCT (F =13.236, P < 0.001), IL-6 (F = 25.017, P < 0.001), TNF-α (F = 7.948, P = 0.001)] in the very preterm, middle preterm and late preterm groups were significantly different.In infectious disease group, the proportion of cases with PCT ≥ 0.44 μg/L (χ2 = 31.109, P < 0.001), IL-6 ≥ 0.44 ng/L (χ2 = 20.990, P < 0.001), TNF-α ≥ 14.59 ng/L(χ2 = 9.536, P = 0.002), gestational age (27 weeks ≤ 32 weeks) (χ2 = 6.206, P = 0.045), EOS count ≥ 1.5 × 109/L (χ2 = 8.585,P = 0.003) and feeding intolerance (χ2 = 14.107, P < 0.001) were significantly higher than those of noninfectious disease group, with significant differences.Logistic regression analysis showed that PCT ≥ 0.44 μg/L(OR = 2.284, 95%CI: 1.023-5.354, P = 0.021), IL-6 ≥ 0.44 ng/L (OR = 6.216, 95%CI: 1.312-11.624, P =0.015), TNF-α ≥ 14.59 ng/L (OR = 6.892, 95%CI: 1.245-9.654, P = 0.001), gestational age (27 weeks ≤gestational age < 32 weeks) (OR = 7.004, 95%CI: 3.654-16.324, P = 0.014), EOS count ≥ 1.5 × 109/L (OR =5.610, 95%CI: 1.268~9.021, P = 0.004), feeding intolerance (OR = 7.840, 95%CI: 2.364-11.654, P = 0.002)were all influencing factors of infectious diseases in children with increased EOS (all P < 0.05).Generalized addition model and curve fitting showed that the incidence rates of necrotizing enterocolitis, septicemia, meningitis,pneumonia and urinary system infection were non-linear positively related with EOS count of preterm infants;With the increase of EOS count, the incidences of infectious diseases of preterm infants increased, with significant differences (all P < 0.05).

Conclusions

PCT, IL-6, TNF-α, gestational age, EOS moderate to severe increase and feeding intolerance were all influencing factors of incidences of infectious diseases in children with EOS increase.Necrotizing enterocolitis, sepsis, meningitis, pneumonia and urinary system infection are all non-linearly positively correlated with EOS count in premature infants.

Key words: Premature infants, Eosinophils, Infectious diseases, Risk factor

京ICP 备07035254号-20
Copyright © Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition), All Rights Reserved.
Tel: 010-85322058 E-mail: editordt@163.com
Powered by Beijing Magtech Co. Ltd