Title

Preschool Wheezing Disorders

Authoring Organization

European Respiratory Society

Publication Month/Year

June 6, 2024

Last Updated Month/Year

July 12, 2024

Supplemental Implementation Tools

Document Type

Consensus

Country of Publication

European

Document Objectives

Since the publication of the European Respiratory Society (ERS) Task Force reports on the management of preschool wheezing in 2008 and 2014, a large body of evidence has accumulated suggesting the clinical phenotypes that were proposed, episodic (viral) wheezing and multiple-trigger wheezing, do not relate to underlying airway pathology and may not help determine response to treatment. Specifically, using clinical phenotypes alone may no longer be appropriate, and new approaches that can be used to inform clinical care are needed for future research. This ERS Task Force reviewed the literature published after 2008 related to preschool wheezing and has suggested the criteria used to define wheezing disorders in preschool children should include age of diagnosis (0 to <6 years), confirmation of wheezing on at least one occasion, and more than one episode of wheezing ever.Furthermore, diagnosis and management may be improved by identifying treatable traits, including inflammatory biomarkers (blood eosinophils, aeroallergen sensitisation) associated with type-2 immunity and differential response to inhaled corticosteroids, lung function parameters, and airway infection. However, more comprehensive use of biomarkers/treatable traits in predicting the response to treatment requires prospective validation. There is evidence that specific genetic traits may help guide management, but these must be adequately tested. In addition, the Task Force identified an absence of caregiver-reported outcomes, caregiver/self-management options, and features that should prompt specialist referral for this age group. Priorities for future research include a focus on identifying i) mechanisms driving preschool wheezing, ii) biomarkers of treatable traits and efficacy of interventions in those without allergic sensitisation/eosinophilia, iii) the need to include both objective outcomes and caregiver-reported outcomes in clinical trials, iv) the need for a suitable action plan for children with preschool wheezing and v) a definition of severe/difficult-to-treat preschool wheezing.

Inclusion Criteria

Male, Female, Child

Health Care Settings

Ambulatory, Childcare center, School

Intended Users

Nurse, nurse practitioner, physician, physician assistant

Scope

Management

Keywords

wheezing

Source Citation

Makrinioti H, Fainardi V, Bonnelykke K, Custovic A, Cicutto L, Coleman C, Eiwegger T, Kuehni C, Moeller A, Pedersen E, Pijnenburg M, Pinnock H, Ranganathan S, Tonia T, Subbarao P, Saglani S. European Respiratory Society Statement on preschool wheezing disorders: updated definitions, knowledge gaps, and proposed future research directions. Eur Respir J. 2024 Jun 6:2400624. doi: 10.1183/13993003.00624-2024. Epub ahead of print. PMID: 38843917.