Perception of bronchoconstriction in asthma patients measured during histamine challenge test
نویسندگان
چکیده
منابع مشابه
Perception of bronchoconstriction in asthma patients measured during histamine challenge test.
This study investigated two aspects of the perception of bronchoconstriction ("sensitivity" and "absolute perceptual magnitude") in asthmatic patients and identified which clinical characteristics are related to these two aspects of perception of bronchoconstriction. The perception of histamine induced bronchoconstriction was measured in 128 asthmatic patients. Subjects quantified their breathl...
متن کاملAssociation of anxiety with perception of histamine induced bronchoconstriction in patients with asthma.
BACKGROUND The perception of bronchoconstriction varies among patients with asthma and this perception may be related to the covariation of sensory and affective aspects of dyspnoea. A study was performed to evaluate whether there are differences in the perception of histamine induced bronchoconstriction between anxious and non-anxious perceivers and whether anxious perception of bronchoconstri...
متن کاملChanges in neural drive (EMGd) and neuromuscular coupling during histamine-induced bronchoconstriction in patients with asthma.
This study was undertaken in order to assess the neural drive to the respiratory muscles and the inspiratory neuromuscular coupling in patients with bronchial asthma during histamine-induced bronchoconstriction. Bronchoconstriction was produced in a graded fashion, with histamine phosphate aerosol of increasing dose, in twelve asymptomatic asthmatic patients and was measured by FEV1. Inspirator...
متن کاملDynamic hyperinflation during bronchoconstriction in asthma: implications for symptom perception.
OBJECTIVE The objective of this study was to examine the relationship between respiratory symptom intensity and quality and dynamic lung hyperinflation (DH) during induced bronchoconstriction in asthma. PATIENTS AND METHODS Subjects with asthma (n = 116) underwent baseline spirometry and lung volume measurement followed by high-dose methacholine challenge testing (MCT) [maximum decrease in FE...
متن کاملDecrease of histamine induced bronchoconstriction by caffeine in mild asthma.
BACKGROUND While high doses of caffeine may affect pulmonary function and bronchial challenge tests in patients with mild asthma, the effects of lower doses (< or = 5 mg/kg) are less well documented. Specific recommendations exist for withholding theophylline, but not caffeine, before bronchoprovocation and pulmonary function testing. METHODS To assess the effect of a single oral dose of caff...
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ژورنال
عنوان ژورنال: European Respiratory Journal
سال: 1999
ISSN: 0000-0000,0903-1936
DOI: 10.1183/09031936.99.14510499