Use of pressurised aerosols by asthmatic patients.
نویسندگان
چکیده
منابع مشابه
Incorrect use of pressurised metered dose inhaler by asthmatic patients.
The use of pressurised metered dose inhalers was assessed among 93 asthmatic patients attending the respiratory out patient clinic between January to October 1989. They were regular users of the inhalers prior to the assessment. 62.4% of the patients were found to use the inhalers incorrectly. Forty three percent made more than one error. The commonest error observed was the failure to actuate ...
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Although the use of pressurised aerosol inhalers is widespread, little is known about the actual deposition of the aerosol in the respiratory tract, since this has previously been difficult to measure. We have incorporated Teflon particles (mean diameter 2 micrometer) with aerodynamic properties similar to those of bronchodilator drug crystals into pressurised aerosol canisters. Controlled inha...
متن کاملTerbutaline via pressurised metered dose inhaled (P-MDI) and Turbuhaler in highly reactive asthmatic patients.
There is some concern over the environmental consequences of chlorofluorocarbons (CFCs) used in pressurized metered-dose inhalers (p-MDIs). Turbuhaler was designed to deliver a drug as a dry powder without administering additives directly to the airways. The aim of this study was to evaluate the comparative irritant and bronchodilating effects of the same dose of terbutaline delivered by a p-MD...
متن کاملEffects of bronchodilator particle size in asthmatic patients using monodisperse aerosols.
Aerosol particle size influences airway drug deposition. Current inhaler devices are inefficient, delivering a heterodisperse distribution of drug particle sizes where, at best, 20% reaches the lungs. Monodisperse aerosols are the appropriate research tools to investigate basic aerosol science concepts within the human airways. We hypothesized that engineering such aerosols of albuterol would i...
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ژورنال
عنوان ژورنال: BMJ
سال: 1976
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.1.6001.76-a