Mannitol dry powder challenge in comparison with exercise testing in children

Barben, Juerg; Kuehni, Claudia E; Strippoli, Marie-Pierre F; Schiller, Barbara; Hammer, Juerg; Trachsel, Daniel (2011). Mannitol dry powder challenge in comparison with exercise testing in children. Pediatric pulmonology, 46(9), pp. 842-848. Hoboken, N.J.: Wiley-Blackwell 10.1002/ppul.21453

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Rationale Mannitol dry powder (MDP) challenge is an indirect bronchial provocation test, which is well studied in adults but not established for children. Objective We compared feasibility, validity, and clinical significance of MDP challenge with exercise testing in children in a clinical setting. Methods Children aged 6–16 years, referred to two respiratory outpatient clinics for possible asthma diagnosis, underwent standardized exercise testing followed within a week by an MDP challenge (Aridol™, Pharmaxis, Australia). Agreement between the two challenge tests using Cohen's kappa and receiving operating characteristic (ROC) curves was compared. Results One hundred eleven children performed both challenge tests. Twelve children were excluded due to exhaustion or insufficient cooperation (11 at the exercise test, 1 at the MDP challenge), leaving 99 children (mean ± SD age 11.5 ± 2.7 years) for analysis. MDP tests were well accepted, with minor side effects and a shorter duration than exercise tests. The MDP challenge was positive in 29 children (29%), the exercise test in 21 (21%). Both tests were concordant in 83 children (84%), with moderate agreement (κ = 0.58, 95% CI 0.39–0.76). Positive and negative predictive values of the MDP challenge for exercise-induced bronchoconstriction were 68% and 89%. The overall ability of MDP challenge to separate children with or without positive exercise tests was good (area under the ROC curve 0.83). Conclusions MDP challenge test is feasible in children and is a suitable alternative for bronchial challenge testing in childhood. Pediatr. Pulmonol. 2011; 46:842–848. © 2011 Wiley-Liss, Inc.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Pre-clinic Human Medicine > Institute of Social and Preventive Medicine (ISPM)

UniBE Contributor:

Kühni, Claudia and Strippoli, Marie-Pierre

ISSN:

8755-6863

Publisher:

Wiley-Blackwell

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:22

Last Modified:

12 Sep 2017 12:02

Publisher DOI:

10.1002/ppul.21453

PubMed ID:

21465681

Web of Science ID:

000294225400002

BORIS DOI:

10.7892/boris.7391

URI:

https://boris.unibe.ch/id/eprint/7391 (FactScience: 212613)

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