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. 2024 Mar 4;10(2):00932-2023.
doi: 10.1183/23120541.00932-2023. eCollection 2024 Mar.

Association between upper and lower respiratory disease among patients with primary ciliary dyskinesia: an international study

Affiliations

Association between upper and lower respiratory disease among patients with primary ciliary dyskinesia: an international study

Yin Ting Lam et al. ERJ Open Res. .

Abstract

Introduction: Nearly all patients with primary ciliary dyskinesia (PCD) report ear-nose-throat (ENT) symptoms. However, scarce evidence exists about how ENT symptoms relate to pulmonary disease in PCD. We explored possible associations between upper and lower respiratory disease among patients with PCD in a multicentre study.

Methods: We included patients from the ENT Prospective International Cohort (EPIC-PCD). We studied associations of several reported ENT symptoms and chronic rhinosinusitis (defined using patient-reported information and examination findings) with reported sputum production and shortness of breath, using ordinal logistic regression. In a subgroup with available lung function results, we used linear regression to study associations of chronic rhinosinusitis and forced expiratory volume in 1 s (FEV1) accounting for relevant factors.

Results: We included 457 patients (median age 15 years, interquartile range 10-24 years; 54% males). Shortness of breath associated with reported nasal symptoms and ear pain of any frequency, often or daily hearing problems, headache when bending down (OR 2.1, 95% CI 1.29-3.54) and chronic rhinosinusitis (OR 2.3, 95% CI 1.57-3.38) regardless of polyp presence. Sputum production associated with daily reported nasal (OR 2.2, 95% CI 1.20-4.09) and hearing (OR 2.0, 95% CI 1.10-3.64) problems and chronic rhinosinusitis (OR 2.1, 95% CI 1.48-3.07). We did not find any association between chronic rhinosinusitis and FEV1.

Conclusion: Reported upper airway symptoms and signs of chronic rhinosinusitis associated with reported pulmonary symptoms, but not with lung function. Our results emphasise the assessment and management of upper and lower respiratory disease as a common, interdependent entity among patients with PCD.

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Conflict of interest statement

Conflict of interest: J-F. Papon reports personal fees from Sanofi, GSK, Medtronic and ALK, outside the submitted work. Conflict of interest: M. Alexandru received personal fees from Sanofi and ALK outside the submitted work. Conflict of interest: M. Boon reports grants from Forton grant (King Baudouin Foundation) 2020-J1810150-217926 for cystic fibrosis research and personal fees from Vertex outside the submitted work. Conflict of interest: N. Lorent received honoraria to her institution from GSK, INSMED and AN2 Therapeutics outside the submitted work, and a travel grant from Pfizer. Conflict of interest: J. Roehmel received grants, clinical study reimbursement from Vertex, INSMED, Medical Research Council/UK, BMBF and Mukoviszidose Institut, outside the submitted work. Conflict of interest: The other authors report no competing interests.

Figures

FIGURE 1
FIGURE 1
Flowchart of people who participated in the ENT (ear–nose–throat) Prospective International Cohort (EPIC)-PCD (primary ciliary dyskinesia). FEV1: forced expiratory volume in 1 s; TEM: transmission electron microscope.
FIGURE 2
FIGURE 2
Association of patient-/parent-reported nasal symptoms or headache when bending down with a) shortness of breath and b) sputum production among ENT (ear–nose–throat) Prospective International Cohort (EPIC)-PCD (primary ciliary dyskinesia) participants (n=457).
FIGURE 3
FIGURE 3
Association of patient-/parent-reported ear pain and hearing problems with a) shortness of breath and b) sputum production among ENT (ear–nose–throat) Prospective International Cohort (EPIC)-PCD (primary ciliary dyskinesia) participants (n=457).
FIGURE 4
FIGURE 4
Association of chronic rhinosinusitis (CRS) with patient-/parent-reported a) shortness of breath and b) sputum production among ENT (ear–nose–throat) Prospective International Cohort (EPIC)-PCD (primary ciliary dyskinesia) participants (n=457).

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