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April 10, 2026Pediatric Pulmonology

Repeatability of Multiple Breath Washout in Pediatric Primary Ciliary Dyskinesia

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Authors

MAMuhammad AhmadShaikh Zayed Postgraduate Medical InstituteMHMian Zain HayatShaikh Zayed Postgraduate Medical InstituteMTMohsin TariqShaikh Zayed Postgraduate Medical Institute

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Overview

Multicenter study evaluates lung function in pediatric primary ciliary dyskinesia, highlighting methodological limitations.

Key Points

  • This research aims to evaluate the repeatability of Multiple Breath Washout (MBW) as a measure of lung function in pediatric patients with Primary Ciliary Dyskinesia (PCD).
  • Assess same-day and 28-day repeatability of MBW measurements.
  • Evaluate the influence of pre-test airway clearance variability on LCI results.
  • Analyze the impact of circadian rhythms on lung function metrics.
  • Consider the absence of structural imaging during MBW assessments.
  • LCI variability influenced by inconsistent airway clearance protocols prior to testing.
  • Lack of imaging made it difficult to determine true physiological changes vs. measurement artifacts.
  • Intra-observer and inter-observer variability in MBW quality control was unaccounted for, potentially affecting results.
  • Testing conducted at varying times of day introduced additional variability in lung function metrics.

Cite This Study

Ahmad et al. (2026) studied this question.

synapsesocial.com/papers/69d896566c1944d70ce07bb1https://doi.org/10.1002/ppul.71617
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Comparison of spirometry, impulse oscillometry, and multiple breath washout in children with primary ciliary dyskinesia2026
  2. 2Multiple Breath Washout in Primary Ciliary Dyskinesia: Potential for Lung Disease Monitoring2025 · 1 citations
  3. 3Comparing Multiple Breath Washout Parameters in a Matched Cohort of Children With Cystic Fibrosis and Primary Ciliary Dyskinesia2026
  4. 4Response to Commentary on Repeatability of Multiple Breath Washout in Pediatric Primary Ciliary Dyskinesia2026
  5. 5Prospective longitudinal measurements of N <sub>2</sub> multiple breath washout indices in primary ciliary dyskinesia2014