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Published on: December 10, 2013
Liver involvement in the process of acute respiratory infections in pediatric patients
Nune Baghdasaryan1, Gohar Ayvazyan2, Murad Grigoryan3
1Department of Pediatrics # 1,Yerevan State Medical University after M. Heratsi, Yerevan, Armenia. nun_bag@mail.ru.
Insights
Ornithine carbamoyltransferase (OCT) is a more sensitive indicator of liver injury in pediatric patients with acute respiratory infections (ARI). Higher OCT levels correlate with increased disease severity, impacting hospitalization.
Area of Science:
- Pediatric Hepatology
- Infectious Diseases
- Biomarker Discovery
Background:
- Acute respiratory infections (ARI) can manifest with liver involvement in children.
- Routine liver function tests may not adequately detect early hepatic injury in pediatric ARI.
- Identifying sensitive indicators of liver damage is crucial for managing pediatric ARI.
Purpose of the Study:
- To investigate the prevalence of liver involvement in pediatric patients with ARI.
- To compare the sensitivity of routine hepatic panel tests with ornithine carbamoyltransferase (OCT) for detecting early hepatic injury.
- To identify the most sensitive indicators of hepatic injury in pediatric ARI.
Main Methods:
- Prospective cohort study of 84 Armenian children with ARI.
- Evaluation of clinical disease severity signs and enzymatic profiles.
- Measurement of serum levels of OCT, AST, ALT, ammonia, phospholipides, glucose, TNF-α, and IL-8.
Main Results:
- Serum OCT levels were elevated in 94% of pediatric ARI patients, significantly higher than routine tests (AST 41.7%, ALT 15.5%).
- Elevated OCT, ammonia, phospholipides, glucose, TNF-α, IL-8, AST, and ALP levels were associated with ARI disease severity.
- Serum OCT and ammonia levels significantly predicted disease severity in pediatric ARI patients.
Conclusions:
- Ornithine carbamoyltransferase (OCT) is a more sensitive and specific marker for detecting liver damage in pediatric ARI.
- Testing serum OCT levels can identify more cases of ARI with hepatic manifestations.
- Higher serum OCT levels in pediatric ARI patients are linked to increased disease severity and potentially longer hospitalization.
Introduction:
We aimed to investigate the prevalence of liver involvement in pediatric patients with ARI using both routine tests of hepatic panel, and ornithine carbamoyltransferase (OCT) to identify the most sensitive indicators of early hepatic injury.
Methodology:
A prospective cohort study of 84 armenian children with ARI was conducted to evaluate the associated liver involvement. The diagnostic variables of interest were the signs of clinical disease severity, and enzymatic profile of the patients.
Results:
Serum levels of OCT were increased in 94% of patients versus routine tests of hepatic panel (AST in 41.7%, ALT in 15.5%, etc). Variance analysis by severity groups showed the serum levels of OCT (p < 0.001), ammonia (p < 0.001), phospholipides (p = 0.05), glucose (p = 0.01), TNF-α (p = 0.01), IL-8 (p < 0.001), AST (p < 0.001), and ALP (p < 0.001) were associated with the severity of underlying disease. Moreover, regression analysis revealed the serum activity of OCT (p value < 0.001, OR = 1.27) and ammonia (p value 0.002, OR = 1.1) significantly predict the severity of the disease.
Conclusions:
Using more sensitive marker of liver damage can detect more cases of ARI with hepatic manifestations. For evaluation of the liver involvement we are suggesting the testing of serum OCT levels as a more sensitive and specific marker. Pediatric patients with ARI and with higher serum OCT levels have 27% more chance to experience increased disease severity, which can affect on liver state and prolong hospitalization time and cost.
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