Fiche publication


Date publication

janvier 2021

Journal

ERJ open research

Auteurs

Membres identifiés du Cancéropôle Est :
Pr HUET Frédéric


Tous les auteurs :
Marguet C, Houdouin V, Pin I, Reix P, Huet F, Mittaine M, Ramel S, Wizla-Derambure N, Abely M, Dalphin ML, Fayon M, Bihouée T, Le Bourgeois M, Deneuville E, Corvol H, Laurans M, Couderc L, Leroux E, Lémée L

Résumé

Lung damage in cystic fibrosis (CF) is strongly associated with lower airway infections. Early treatment of is recommended. Pathogen detection requires sampling of lower airway secretions, which remains a challenge in nonexpectorating patients. Our hypothesis was that chest physiotherapy would improve the quality of airway secretion samples and increase the rates of pathogens detected in nonexpectorating patients. This prospective multicentre study compared three successive methods for sampling airway secretions applied through the same session: 1) an oropharyngeal swab (OP), 2) a chest physiotherapy session followed by a provoked cough to obtain sputum (CP-SP) and 3) a second oropharyngeal swab collected after chest physiotherapy (CP-OP). , and growth cultures were assessed. Accuracy tests and an equivalence test were performed to compare the three successive methods of collection. 300 nonexpectorating children with CF were included. was detected cumulatively in 56 (18.9%) children, and according to the different collection methods in 28 (9.8%), 37 (12.4%) and 44 (14.7%) children by using OP, CP-OP and CP-SP, respectively. Compared with OP, the increased detection rate was +22% for CP-OP (p=0.029) and +57% for CP-SP (p=0.003). CP-SP had the best positive predictive value (86.3%) and negative predictive value (96.0%) for compared with the overall detection. The results of this adequately powered study show differences in the rates of pathogens detected according to the sampling method used. Chest physiotherapy enhanced detection of in nonexpectorating children with CF.

Référence

ERJ Open Res. 2021 Jan;7(1):