Observational study of laryngoscopy plus flow‐volume loops during exercise

Pianosi, Paul; Orbelo, Diana M.; Cofer, Shelagh A.

doi:10.1002/ccr3.1375

Cited by 3 publications

(4 citation statements)

References 24 publications

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“…A lack of correlation between resting spirometry and CLE findings has also been confirmed empirically 64 65. Exercise tidal flow-volume loops have not been extensively studied, but may prove useful in terms of demonstrating an attenuated inspiratory flow 66. Bronchial provocation tests (other than EIB tests) have been found to have limited value in EILO diagnostics, both when performed with and without a laryngoscopy in place 64 67.…”

Section: Observationsmentioning

confidence: 98%

“…Bronchial provocation tests (other than EIB tests) have been found to have limited value in EILO diagnostics, both when performed with and without a laryngoscopy in place 64 67. Eucapnic voluntary hyperpnoea (EVH) can induce glottic as well as supraglottic obstruction 66 67. Laryngoscopy performed during an eucapnic hyperpnoea test (EVH) would provide hyperventilation without exercising and could conceivably represent a diagnostic shortcut in the evaluation of EILO.…”

Section: Observationsmentioning

confidence: 99%

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Exercise-induced laryngeal obstruction (EILO) in athletes: a narrative review by a subgroup of the IOC Consensus on ‘acute respiratory illness in the athlete’

Clemm

Olin

McIntosh³

et al. 2022

Br J Sports Med

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Exercise-induced laryngeal obstruction (EILO) is caused by paradoxical inspiratory adduction of laryngeal structures during exercise. EILO is an important cause of upper airway dysfunction in young individuals and athletes, can impair exercise performance and mimic lower airway dysfunction, such as asthma and/or exercise-induced bronchoconstriction. Over the past two decades, there has been considerable progress in the recognition and assessment of EILO in sports medicine. EILO is a highly prevalent cause of unexplained dyspnoea and wheeze in athletes. The preferred diagnostic approach is continuous visualisation of the larynx (via laryngoscopy) during high-intensity exercise. Recent data suggest that EILO consists of different subtypes, possibly caused via different mechanisms. Several therapeutic interventions for EILO are now in widespread use, but to date, no randomised clinical trials have been performed to assess their efficacy or inform robust management strategies. The aim of this review is to provide a state-of-the-art overview of EILO and guidance for clinicians evaluating and treating suspected cases of EILO in athletes. Specifically, this review examines the pathophysiology of EILO, outlines a diagnostic approach and presents current therapeutic algorithms. The key unmet needs and future priorities for research in this area are also covered.

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Section: Observationsmentioning

confidence: 98%

Section: Observationsmentioning

confidence: 99%

Exercise-induced laryngeal obstruction (EILO) in athletes: a narrative review by a subgroup of the IOC Consensus on ‘acute respiratory illness in the athlete’

Clemm

Olin

McIntosh³

et al. 2022

Br J Sports Med

View full text Add to dashboard Cite

show abstract

“…To můžeme pozorovat na flow--volume křivce, která má "cigaretový" tvar, což znamená, že velikost křivky průtok výrazně přesahuje velikost křivky objem. Zpomalením inspiračního průtoku například dýcháním přes sevřené rty lze obnovit normální eliptický nebo obdélníkový tvar křivky flow-volume a zmírnit síly způsobující addukci hlasivek (Pianosi at al., 2018).…”

Section: Etiopatogeneze Eilounclassified

“…CLE test umožní lokalizaci uzávěru laryngu, zobrazí také časování tohoto děje, a díky tomu lze zjistit, která ze struktur iniciuje addukci. V neposlední řadě určí tíži addukce (Pianosi at al., 2018;Tervonen et al, 2009).…”

Section: Diagnostikaunclassified