Pressure and inspiratory flow characteristics of dry powder inhalers.

This study compared inspiratory characteristics of the Novolizer and Turbuhaler. Sixty patients with obstructive lung disease (40 asthmatics, 20 patients with COPD) and without DPI experience were enrolled into this investigator initiated, randomized, cross-over study. Collected data of 56 patients were eligible for analysis.

[Influence of an oscillating physiotherapy device (RC-Cornet trade mark) on the regional distribution of the pulmonary aerosol deposition in patients with COPD].

Background: The inhalation of ipratropium bromide via a jet nebulizer obtained a significantly higher bronchodilation, if the oscillating physiotherapy device RC-Cornet trade mark was integrated into the exaspiratory limb of the nebulizer. Therefore we investigated the influence of the RC-Cornet trade mark on the central pulmonary radioaerosol deposition as well as the relationship between central and peripheral lung deposition in patients with chronic obstructive lung disease in a controlled study.

Methods: Lung ventilation scintigraphy was performed routinely in 14 pat.