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Clinical Characteristics and Immune Responses in Children with Primary Ciliary Dyskinesia during Pneumonia Episodes:

Danli Lu1,2,3,4,5, Wenhao Yang1,2,3,4,5, Rui Zhang1

  • 1Department of Pediatric Pulmonology and Immunology, West China Second University Hospital, Sichuan University, Chengdu 610000, China.

Children (Basel, Switzerland)
|November 25, 2023
PubMed

Insights

Children with primary ciliary dyskinesia (PCD) show distinct immune responses and lung imaging during pneumonia. This research highlights PCD

Area of Science:

  • Pediatric Pulmonology
  • Immunology
  • Respiratory Medicine

Background:

  • Primary ciliary dyskinesia (PCD) is a rare genetic disorder affecting mucociliary clearance.
  • Pneumonia is a common complication in children with PCD, impacting disease progression.
  • Understanding immune responses in PCD during infections is crucial for management.

Purpose of the Study:

  • To investigate the clinical features and immune profiles of pediatric patients with PCD experiencing pneumonia.
  • To compare these features against a control group of children with pneumonia but without chronic conditions.

Main Methods:

  • Retrospective analysis of 61 children with PCD hospitalized for pneumonia (April 2017-August 2022).
  • Inclusion of 61 age-matched controls with pneumonia and no chronic diseases.
  • Comparison of clinical characteristics, inflammatory markers, pathogens, and lung imaging findings.

Main Results:

  • PCD patients exhibited altered lymphocyte and eosinophil counts, with lower neutrophils, CRP, and fibrinogen levels compared to controls.
  • Mycoplasma pneumoniae was a common pathogen in both groups.
  • PCD patients showed significantly higher prevalence of mucous plugging, emphysema, bronchiectasis, mosaic attenuation, interstitial inflammation, and sinusitis on lung imaging.

Conclusions:

  • Primary ciliary dyskinesia is associated with immune system dysregulation.
  • These immune alterations contribute to the unique pathophysiology observed in PCD patients during pneumonia episodes.
Abstract

Keywords:
imaging examinationimmunologyinflammationpathogenpneumoniaprimary ciliary dyskinesia

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