Paeds · respiratory-sleep-and-airway

Recurrent wheeze in preschool children

Also known as Preschool wheeze · Episodic viral wheeze · Multiple-trigger wheeze · Viral-induced wheeze · Wheezy toddler

Fellowship guide to recurrent wheeze in preschool children: the phenotype framework (episodic viral versus multiple-trigger wheeze), the Asthma Predictive Index and atopy as the risk stratifier, the small-airway and inflammatory pathophysiology, the bedside assessment that separates wheeze from mimics, the acute and preventive management with the pivotal randomised trials (PEAK, MIST, Ducharme, Bacharier, Panickar), and the natural history that lets most children outgrow it.

high9 referencesUpdated 15 July 202622 min readVerification in progress

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Red flags

Wheeze that dates from the first days of life, is monophonic or fixed, or is associated with feeding difficulty, stridor, or failure to thrive suggests a structural or aspiration cause (vascular ring, tracheobronchomalacia, laryngeal cleft) — not preschool wheeze — and needs imaging and airway assessmentA preschool child in a severe or life-threatening acute attack — silent chest, exhaustion, cyanosis, SpO2 below 92% on air, or altered consciousness — needs immediate burst bronchodilator, systemic corticosteroid, oxygen, and senior/retrieval involvement, never a wait-and-see trialFailure to thrive, chronic wet cough, finger clubbing, or a wheeze that never fully clears points away from simple preschool wheeze toward cystic fibrosis, primary ciliary dyskinesia, bronchiectasis, or immunodeficiency and mandates specialist investigationA sudden monophonic wheeze of abrupt onset in a well toddler, especially after a choking episode, is an inhaled foreign body until proven otherwise and requires urgent bronchoscopy regardless of a normal chest radiograph

Life stages

infanttoddlerpreschool

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Recurrent wheeze in preschool childrenPreschool wheeze: phenotypes, prediction, and pharmacotherapyPreschool wheeze: episodic viral versus multiple-trigger, and the evidence for ICSLong case: the recurrently wheezy preschoolerShort case: respiratory examination of the wheezy childWheeze in the preschool childPreschool wheeze: phenotypes, prediction, and managementRespiratory: the wheezy preschool childPulmonology: recurrent wheeze and early-childhood asthmaPatient Care: recurrent wheeze in the young childMedical Expert: preschool wheeze and early asthma

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Life stages

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preventive-medical-homecommunity-schooloutpatientwarded-acute

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Overview & Definition

Watch a two-year-old with a cold and you will often hear it: a high-pitched, musical, expiratory whistle that comes and goes with each viral illness, then vanishes when the child is well. Wheeze is that continuous musical sound generated by turbulent airflow through narrowed intrathoracic airways, and in the preschool years it is one of the commonest reasons a family brings a child to a doctor. The task the clinician faces is not to hear the wheeze — parents already report it — but to decide what it means and what, if anything, to do about it. [2]

Recurrent wheeze in preschool children is a descriptive label, not a diagnosis. It covers the child under six years with repeated episodes of wheeze, and it deliberately avoids the word "asthma" because most of these children will never have persistent asthma. The landmark Tucson cohort of Martinez and colleagues reframed the whole field by showing that early wheeze is a mix of quite different trajectories, most of which remit, and only a minority of which represent early atopic asthma. Getting the frame right — phenotype and trajectory, not a single disease — is the whole point of the topic. [1] [2]

What is recurrent preschool wheeze and why does it matter?

Recurrent preschool wheeze is repeated episodes of expiratory musical wheeze in a child under six years, a descriptive umbrella rather than a diagnosis. It matters because it is extremely common (roughly a third of children wheeze at least once by age three), because most children outgrow it while a minority go on to atopic asthma, and because the treatments that transform school-age asthma work far less predictably here. The clinical job is to classify the phenotype (episodic viral versus multiple-trigger), stratify future asthma risk (atopy and the Asthma Predictive Index), exclude the serious mimics, treat acute attacks well, and offer preventive therapy only as a monitored trial — never a lifelong commitment on first presentation. [1] [2] [3]

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References9Show ledger

[1]Martinez FD; Wright AL; Taussig LM; Holberg CJ; Halonen M; Morgan WJ Asthma and wheezing in the first six years of life. The Group Health Medical Associates. N Engl J Med, 1995.PMID 7800004
[2]Brand PL; Baraldi E; Bisgaard H; Boner AL; Castro-Rodriguez JA; Custovic A; et al Definition, assessment and treatment of wheezing disorders in preschool children: an evidence-based approach. Eur Respir J, 2008.PMID 18827155
[3]Castro-Rodríguez JA; Holberg CJ; Wright AL; Martinez FD A clinical index to define risk of asthma in young children with recurrent wheezing. Am J Respir Crit Care Med, 2000.PMID 11029352
[4]Guilbert TW; Morgan WJ; Zeiger RS; Mauger DT; Boehmer SJ; Szefler SJ; et al Long-term inhaled corticosteroids in preschool children at high risk for asthma. N Engl J Med, 2006.PMID 16687711
[5]Ducharme FM; Lemire C; Noya FJ; Davis GM; Alos N; Leblond H; et al Preemptive use of high-dose fluticasone for virus-induced wheezing in young children. N Engl J Med, 2009.PMID 19164187
[6]Bacharier LB; Phillips BR; Zeiger RS; Szefler SJ; Martinez FD; Lemanske RF Jr; et al Episodic use of an inhaled corticosteroid or leukotriene receptor antagonist in preschool children with moderate-to-severe intermittent wheezing. J Allergy Clin Immunol, 2008.PMID 18973936
[7]Zeiger RS; Mauger D; Bacharier LB; Guilbert TW; Martinez FD; Lemanske RF Jr; et al Daily or intermittent budesonide in preschool children with recurrent wheezing. N Engl J Med, 2011.PMID 22111718
[8]Panickar J; Lakhanpaul M; Lambert PC; Kenia P; Stephenson T; Smyth A; et al Oral prednisolone for preschool children with acute virus-induced wheezing. N Engl J Med, 2009.PMID 19164186
[9]Brand PL; Caudri D; Eber E; Gaillard EA; Garcia-Marcos L; Hedlin G; et al Classification and pharmacological treatment of preschool wheezing: changes since 2008. Eur Respir J, 2014.PMID 24525447

Recurrent wheeze in preschool children

Also known as Preschool wheeze · Episodic viral wheeze · Multiple-trigger wheeze · Viral-induced wheeze · Wheezy toddler

high9 referencesUpdated 15 July 202622 min readVerification in progress

Practise this topic

Overview & Definition

Paediatrics Fellowship Pro

You have read the opening of this topic. The complete unit — every section and its primary-source references — is part of the Paediatrics Fellowship fellowship atlas.

References9Show ledger

[1]Martinez FD; Wright AL; Taussig LM; Holberg CJ; Halonen M; Morgan WJ Asthma and wheezing in the first six years of life. The Group Health Medical Associates. N Engl J Med, 1995.PMID 7800004
[2]Brand PL; Baraldi E; Bisgaard H; Boner AL; Castro-Rodriguez JA; Custovic A; et al Definition, assessment and treatment of wheezing disorders in preschool children: an evidence-based approach. Eur Respir J, 2008.PMID 18827155
[3]Castro-Rodríguez JA; Holberg CJ; Wright AL; Martinez FD A clinical index to define risk of asthma in young children with recurrent wheezing. Am J Respir Crit Care Med, 2000.PMID 11029352
[4]Guilbert TW; Morgan WJ; Zeiger RS; Mauger DT; Boehmer SJ; Szefler SJ; et al Long-term inhaled corticosteroids in preschool children at high risk for asthma. N Engl J Med, 2006.PMID 16687711
[5]Ducharme FM; Lemire C; Noya FJ; Davis GM; Alos N; Leblond H; et al Preemptive use of high-dose fluticasone for virus-induced wheezing in young children. N Engl J Med, 2009.PMID 19164187
[6]Bacharier LB; Phillips BR; Zeiger RS; Szefler SJ; Martinez FD; Lemanske RF Jr; et al Episodic use of an inhaled corticosteroid or leukotriene receptor antagonist in preschool children with moderate-to-severe intermittent wheezing. J Allergy Clin Immunol, 2008.PMID 18973936
[7]Zeiger RS; Mauger D; Bacharier LB; Guilbert TW; Martinez FD; Lemanske RF Jr; et al Daily or intermittent budesonide in preschool children with recurrent wheezing. N Engl J Med, 2011.PMID 22111718
[8]Panickar J; Lakhanpaul M; Lambert PC; Kenia P; Stephenson T; Smyth A; et al Oral prednisolone for preschool children with acute virus-induced wheezing. N Engl J Med, 2009.PMID 19164186
[9]Brand PL; Caudri D; Eber E; Gaillard EA; Garcia-Marcos L; Hedlin G; et al Classification and pharmacological treatment of preschool wheezing: changes since 2008. Eur Respir J, 2014.PMID 24525447