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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.
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.
Background:
Children with severe adenoviral pneumonia (ADVP) have poor prognosis and high risk of mortality. We performed a meta-analysis to evaluate the association between pretreatment lactate dehydrogenase (LDH) and severity, postinfectious bronchiolitis obliterans (PIBO), and mortality in children with ADVP.
Methods:
Relevant observational studies were identified by search of PubMed, Embase, Web of Science, Wanfang, and CNKI databases from inception to August 3, 2022. A random effect model was used to pool the results by incorporating the potential between-study heterogeneity.
Results:
Overall, 23 studies with 4,481 children with ADVP were included in this meta-analysis. Results of meta-analysis showed that children with severe ADVP had a significantly higher level of pretreatment LDH as compared to those with non-severe ADVP (standard mean difference [SMD]: 0.51, 95% confidence interval [CI]: 0.36 to 0.66, p < 0.001; I 2 = 69%). Besides, pooled results also suggested that the pretreatment LDH was significantly higher in children who developed PIBO as compared to those who did not (SMD: 0.47, 95% CI: 0.09 to 0.84, p = 0.02, I 2 = 80%). Finally, results of the meta-analysis also confirmed that a higher pretreatment LDH (>500 IU/L) was a risk factor of increased mortality during hospitalization (odds ratio: 3.10, 95% CI: 1.62 to 5.92, p < 0.001, I 2 = 0%). Sensitivity analyses by excluding one dataset at a time showed consistent results.
Conclusion:
High pretreatment LDH may be associated with disease severity, development of PIBO, and increased risk of mortality in children with ADVP.
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