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Pulmonology39 papers

Bacterial lower respiratory infection

Last edited: 4/15/2026

Overview

Bacterial lower respiratory infections involve infections affecting the airways and lungs, often requiring imaging and clinical judgment for accurate diagnosis and management, particularly in pediatric populations 12.

Diagnosis

  • Chest Radiography: Essential for evaluating radiological features such as pneumonia, pleural effusion, and hyperinflation 12.
  • Interobserver Agreement: Varies significantly; higher agreement for pneumonia and pleural effusion, lower for normal X-rays and hyperinflation 1.
  • Clinical Context: Important for guiding radiological interpretation and antibiotic decisions 12.
  • Management

  • Antibiotics: Indicated for confirmed bacterial pneumonia; specific drug classes not detailed in abstracts 1.
  • Supportive Care: Includes hydration, oxygen therapy as needed, and monitoring for complications 12.
  • Special Populations

  • Pediatrics: Radiological interpretation varies by experience; clinical context crucial for accurate diagnosis and antibiotic stewardship 12.
  • Vitamin D Status: Subclinical deficiency in newborns and mothers may correlate with increased risk of acute lower respiratory infection; consider vitamin D screening and supplementation in high-risk groups 3.
  • Key Recommendations

  • Utilize chest radiography with clinical context for accurate diagnosis of bacterial lower respiratory infections in children, especially considering observer experience levels (Evidence: Moderate 12).
  • Antibiotic prescription for suspected bacterial pneumonia should be guided by radiological findings and clinical judgment to avoid unnecessary use (Evidence: Moderate 1).
  • Evaluate vitamin D status in newborns and mothers at risk for acute lower respiratory infections, considering supplementation where deficiency is identified (Evidence: Weak 3).
  • References

    1 Levinsky Y, Mimouni FB, Fisher D, Ehrlichman M. Chest radiography of acute paediatric lower respiratory infections: experience versus interobserver variation. Acta paediatrica (Oslo, Norway : 1992) 2013. link 2 Correia MA, Mello MJ, Petribú NC, Silva EJ, Bezerra PG, Duarte MC et al.. Agreement on radiological diagnosis of acute lower respiratory tract infection in children. Journal of tropical pediatrics 2011. link 3 Karatekin G, Kaya A, Salihoğlu O, Balci H, Nuhoğlu A. Association of subclinical vitamin D deficiency in newborns with acute lower respiratory infection and their mothers. European journal of clinical nutrition 2009. link

    Original source

    1. [1]
      Chest radiography of acute paediatric lower respiratory infections: experience versus interobserver variation.Levinsky Y, Mimouni FB, Fisher D, Ehrlichman M Acta paediatrica (Oslo, Norway : 1992) (2013)
    2. [2]
      Agreement on radiological diagnosis of acute lower respiratory tract infection in children.Correia MA, Mello MJ, Petribú NC, Silva EJ, Bezerra PG, Duarte MC et al. Journal of tropical pediatrics (2011)
    3. [3]
      Association of subclinical vitamin D deficiency in newborns with acute lower respiratory infection and their mothers.Karatekin G, Kaya A, Salihoğlu O, Balci H, Nuhoğlu A European journal of clinical nutrition (2009)

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