Lactate dehydrogenase and the severity of adenoviral pneumonia in children: A meta-analysis

Min Zou1, Yang Zhai2,3, Xiaoping Mei4

  • 1Department of Pediatrics, Guangxi International Zhuang Medicine Hospital, Nanning, China.

Frontiers in Pediatrics
|February 13, 2023
PubMed

Insights

High pretreatment lactate dehydrogenase (LDH) levels are linked to severe adenoviral pneumonia (ADVP) in children. Elevated LDH indicates increased risk of postinfectious bronchiolitis obliterans (PIBO) and mortality in these patients.

Area of Science:

  • Pediatric Pulmonology
  • Infectious Diseases
  • Biochemistry

Background:

  • Severe adenoviral pneumonia (ADVP) in children is associated with poor outcomes and high mortality rates.
  • Lactate dehydrogenase (LDH) is an enzyme released from damaged cells, potentially indicating disease severity.

Purpose of the Study:

  • To conduct a meta-analysis evaluating the association between pretreatment lactate dehydrogenase (LDH) levels and the severity, development of postinfectious bronchiolitis obliterans (PIBO), and mortality in children diagnosed with ADVP.

Main Methods:

  • A comprehensive literature search was conducted across multiple databases (PubMed, Embase, Web of Science, Wanfang, CNKI) up to August 3, 2022.
  • Relevant observational studies were identified and included in the meta-analysis.
  • A random effects model was employed to synthesize data and account for inter-study heterogeneity.

Main Results:

  • The meta-analysis included 23 studies involving 4,481 children with ADVP.
  • Children with severe ADVP exhibited significantly higher pretreatment LDH levels compared to those with non-severe ADVP (SMD: 0.51, 95% CI: 0.36 to 0.66).
  • Higher pretreatment LDH levels were also associated with the development of PIBO (SMD: 0.47, 95% CI: 0.09 to 0.84) and increased in-hospital mortality (OR: 3.10, 95% CI: 1.62 to 5.92) when LDH was >500 IU/L.

Conclusions:

  • Elevated pretreatment LDH levels in children with ADVP may serve as a significant indicator of disease severity.
  • High pretreatment LDH is associated with an increased risk of developing postinfectious bronchiolitis obliterans (PIBO).
  • Pretreatment LDH levels are a risk factor for increased mortality in children hospitalized with ADVP.
Abstract

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