Bronchial hyperreactivity after inhalation of distilled water and saline.
نویسندگان
چکیده
منابع مشابه
Bronchial hyperreactivity in response to inhalation of ultrasonically nebulised solutions of distilled water and saline.
To assess non-specific bronchial reactivity the effect of inhaling ultrasonically nebulised solutions of distilled water and hypotonic (0.3%), isotonic (0.9%), and hypertonic (2.7%, 3.6%) saline was investigated in 10 asthmatic patients and nine normal subjects. Expired ventilation and the maximum percentage fall in forced expiratory volume in one second (FEV1) were recorded. The sensitivity to...
متن کاملIncrease in bronchial responsiveness to methacholine and late asthmatic response after the inhalation of ultrasonically nebulized distilled water.
We studied ten subjects who had an asthmatic response after the inhalation of ultrasonically nebulized distilled water and did not show any refractory period to repeated challenge with such water. The change in responsiveness to methacholine after inhalation of distilled water and the occurrence of any water-induced late asthmatic response were investigated on separate days. All of the tested s...
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It is presumed that bronchial hyperreactivity (BHR) can occur with any inhaled agent and may be a reason for discontinuation of inhalation therapy in cystic fibrosis (CF) patients. On the other hand, inhalation of antibiotics is being increasingly used to eradicate or treat infections. This review focuses on identifying the mechanisms of BHR for a better understanding of its impact on inhalatio...
متن کاملComparison of bronchial challenge with ultrasonic nebulized distilled water and hypertonic saline in children with mild-to-moderate asthma.
There is still controversy about the most suitable method to measure bronchial hyperresponsiveness in children. In epidemiological surveys, nonisotonic aerosols are being used increasingly for bronchial provocation testing. Our aim was to study the acceptability, safety and correlation between two published bronchial challenge tests. Two standardized protocols--the inhalation of hypertonic sali...
متن کاملChanges in sensitivity to methacholine after inhalation with distilled water: the role of the bronchoconstrictive response.
The inhalation of distilled water can induce bronchoconstriction and a transient increase in sensitivity to methacholine in asthmatics. The purpose of this study was to determine the role of the induced bronchoconstriction in the increased sensitivity to methacholine which follows the challenge with distilled water. Eighteen asthmatic children (age 9-17 yrs) were challenged by inhalation of dis...
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ژورنال
عنوان ژورنال: BMJ
سال: 1982
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.284.6308.47