Presentation of primary ciliary dyskinesia in children: 30 years' experience

Patrick H Hosie1, Dominic A Fitzgerald2,3, Adam Jaffe4,5

  • 1Discipline of Paediatrics, School of Women's and Children's Health, University of New South Wales, Sydney, New South Wales, Australia.

Insights

Primary ciliary dyskinesia (PCD) is often diagnosed late in childhood. Key symptoms include neonatal respiratory distress, chronic cough, and rhinosinusitis, prompting a need for increased clinical awareness.

Area of Science:

  • Pediatric Pulmonology
  • Rare Diseases
  • Genetics

Background:

  • Primary ciliary dyskinesia (PCD) is a rare genetic disorder affecting approximately 1 in 15,000 individuals.
  • It leads to recurrent respiratory infections, progressive lung damage, and hearing loss, often with delayed diagnosis.
  • Early recognition is crucial for timely management and improved patient outcomes.

Purpose of the Study:

  • To review the presenting clinical features of children diagnosed with PCD.
  • To analyze diagnostic patterns over a 30-year period at Australia's primary PCD diagnostic service.
  • To identify common symptom clusters associated with PCD in pediatric patients.

Main Methods:

  • Retrospective review of pediatric patients diagnosed with PCD between 1982 and 2012.
  • Inclusion criteria: diagnosis confirmed by nasal ciliary brushing, electron microscopy, or suggestive phenotype with genetic factors.
  • Data collection focused on presenting symptoms, situs abnormalities, family history, and age at diagnosis.

Main Results:

  • Out of 1,037 referred patients, 8.1% (84 children) were diagnosed with PCD.
  • The median age at diagnosis was 6.4 years, indicating significant diagnostic delay.
  • Common symptoms included neonatal respiratory distress (57%), recurrent cough (81%), rhinosinusitis (71%), and recurrent otitis media (49%).
  • Situs abnormalities were present in 46% of patients, and bronchiectasis was noted in 32% at presentation.

Conclusions:

  • PCD remains under-recognized by healthcare professionals.
  • A combination of neonatal respiratory distress, chronic suppurative cough, and rhinosinusitis is a frequent presentation.
  • Increased awareness of PCD's clinical manifestations can lead to earlier diagnosis and better long-term outcomes.
Abstract

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