Oscillations forcées et évaluation fonctionnelle de la dyspnée associée à la BPCO

Arnaud Ghilain, Eric Marchand

Résultats de recherche: Contribution à un journal/une revueArticleRevue par des pairs


Introduction: The goal of the present study is to assess the relationship between functional respiratory parameters measured by the forced oscillation technique (FOT) in COPD patients and (1) dyspnea; (2) inspiratory capacity (IC), along with the variations occurring subsequent to bronchodilation. Methods: This cross-sectional study analyzed 40 stable COPD patients. Dyspnea was assessed by means of the San Diego Shortness of Breath Questionnaire. Forced oscillations were measured before and after bronchodilation by means of routine pulmonary function tests (PFTs). Results: The reactance parameters measured by the FOT correlated with dyspnea (AX5: r = 0.46; P = 0.003) similarly to IC (r = −0.46; P = 0.003). Changes in AX5 following bronchodilation led to a predicted 12% and 200 mL improvement in IC, AX5 (area under the ROC curve = 0.85, P < 0.001). Conclusions: Forced oscillation technique (FOT) appears to be an interesting complement to routine PFTs in COPD assessment. Reactance parameters are correlated with dyspnea and their response to bronchodilators is a predictor of significantly improved inspiratory capacity (IC). All in all, FOT may be considered as a functional test with regard to pulmonary hyperinflation, a critical determinant of dyspnea.

Titre traduit de la contributionThe forced oscillation technique in the functional evaluation of COPD dyspnea
langue originaleFrançais
Pages (de - à)659-668
Nombre de pages10
journalRevue des Maladies Respiratoires
Numéro de publication8
Les DOIs
Etat de la publicationPublié - oct. 2022


  • Bronchodilation
  • COPD
  • Dyspnea
  • Forced oscillations
  • Spirometry

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