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Protracted bacterial bronchitis: reinventing an old disease

Vanessa Craven1, Mark L Everard

  • 1Department of Respiratory Medicine, Sheffield Children's Hospital, UK.

Archives of Disease in Childhood
|November 24, 2012
PubMed

Insights

Protracted bacterial bronchitis (PBB) causes chronic cough in children due to persistent airway infections, often linked to impaired clearance or immunodeficiency. Early recognition is crucial to avoid misdiagnosis as asthma and reduce childhood morbidity.

Area of Science:

  • Pediatric Pulmonology
  • Infectious Diseases
  • Respiratory Medicine

Background:

  • Chronic cough is a frequent pediatric complaint with unclear prevalence.
  • Protracted bacterial bronchitis (PBB) is a chronic airway infection causing persistent cough.
  • PBB is often overlooked and misdiagnosed, commonly as asthma.

Purpose of the Study:

  • To define the characteristics and contributing factors of protracted bacterial bronchitis in children.
  • To highlight the impact of PBB on childhood morbidity.
  • To emphasize the need for accurate diagnosis and differentiation from asthma.

Main Methods:

  • Review of clinical presentations of chronic cough in pediatric populations.
  • Identification of etiological factors including impaired mucociliary clearance and biofilms.
  • Analysis of potential roles for subtle immunodeficiencies.

Main Results:

  • PBB is characterized by persistent cough, disturbed sleep, and reduced exercise tolerance.
  • Impaired mucociliary clearance, leading to bacterial biofilm formation, is a common underlying mechanism.
  • Subtle immunodeficiencies may also contribute to the development of PBB.

Conclusions:

  • Protracted bacterial bronchitis is a significant cause of chronic cough in children.
  • Accurate diagnosis of PBB is essential to differentiate it from asthma and other conditions.
  • Addressing underlying factors like impaired clearance or immunodeficiency is key to managing PBB.

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