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[Microbial population of lower respiratory tract in children from different age groups with cystic fibrosis]

I A Shaginian, N I Kapranov, M Iu Chernukha

    Zhurnal Mikrobiologii, Epidemiologii I Immunobiologii
    |March 12, 2010
    PubMed

    Insights

    Chronic lower respiratory tract infections are common in children with cystic fibrosis, with infections increasing with age. Understanding these microbial patterns is key to preventing future complications.

    Area of Science:

    • Medical Microbiology
    • Pediatric Pulmonology
    • Infectious Diseases

    Background:

    • Cystic fibrosis (CF) is a genetic disorder affecting multiple organs, particularly the lungs.
    • Chronic respiratory infections are a major cause of morbidity and mortality in CF patients.
    • Understanding the dynamic microflora of the lower respiratory tract is crucial for managing CF.

    Purpose of the Study:

    • To investigate the variability of lower respiratory tract microflora in children with cystic fibrosis (CF).
    • To identify potential sources of infectious complications in pediatric CF patients.
    • To analyze the progression of microbial colonization with age in CF patients.

    Main Methods:

    • Analysis of 141 medical histories of CF patients across different age groups and regions.
    • Prospective follow-up of 84 pediatric CF patients in Moscow and surrounding regions.
    • Utilized microbiological, molecular biological, and statistical methods for microorganism identification and characterization.

    Main Results:

    • Chronic Pseudomonas, staphylococcal, or mixed infections were present in 25% of 1-4 year olds and 80% of 18-year-olds.
    • Microorganism associations (3-5 microbes) were found in 60% of hospitalized patients.
    • Beyond Pseudomonas aeruginosa and Staphylococcus aureus, Gram-negative nonfermentative bacteria like Burkholderia cepacia were frequently identified.

    Conclusions:

    • Chronic mixed infections are a hallmark of cystic fibrosis respiratory disease.
    • Identifying mechanisms of lung infection in CF is essential for developing evidence-based prevention strategies.
    • Targeted interventions can mitigate infectious complications in pediatric CF patients.
    Abstract

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