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Nasal peak inspiratory flow through Turbuhaler ® in children with symptomatic rhinitis and in healthy children
Author(s) -
Van Zoest J. G. C. M.,
Van Der Weij A. M.,
Duiverman E. J.,
Akerlund A.,
Kouwenberg J. M.
Publication year - 2000
Publication title -
pediatric allergy and immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.269
H-Index - 89
eISSN - 1399-3038
pISSN - 0905-6157
DOI - 10.1034/j.1399-3038.2000.00079.x
Subject(s) - medicine , dry powder inhaler , vasomotor rhinitis , spirometer , inhaler , inhalation , anesthesia , context (archaeology) , peak flow meter , asthma , vasomotor , spirometry , exhaled nitric oxide , paleontology , biology
Topical treatment of allergic or vasomotor rhinitis is possible by means of pressurized metered dose inhalers, aqueous spray, or dry powder inhalers. In children, little is known about nasal drug delivery by dry powder inhalation. The airflow through the device is critical for the drug release and a sufficient nasal inspiratory flow is needed for intranasal drug delivery from a dry powder inhaler. In order to investigate from what age children with allergic or vasomotor rhinitis can reliably use such a device, device‐dependent nasal peak inspiratory flow (DnPIF) was measured. The maximal DnPIF was measured in children aged 4–13 years making use of a dry powder inhaler (Turbuhaler ® ) connected to a spirometer (Vitalograph ® ). In the clinically relevant context, instructions from the doctor and one week's use of a Turbuhaler at home were found to be sufficient to obtain a good inhalation technique and were shown to improve DnPIF at least as effectively as visual feedback training at the clinic. Children with rhinitis, as well as healthy children from the age of 6 years, were able to generate a DnPIF sufficient to obtain a reliable nasal delivery of a dry powder drug dose. DnPIF values correlated with age. Consequently, a recommendation to use a nasal Turbuhaler from the age of 6 for topical drug delivery in the treatment of allergic or vasomotor rhinitis seems reasonable.