Study of methacholine positivity in patients with chronic cough at Masih Daneshvari hospital, Tehran, 2007-2008
EMHJ-Eastern Mediterranean Health Journal. 2013; 19 (4): 369-372
in English
| IMEMR
| ID: emr-158878
ABSTRACT
While airways reactivity is among the characteristics of asthma, is not considered a sufficient condition diagnostically and the methacholine challenge is a non-specific diagnostic aid in cases of chronic cough and reactive airways disease. The aim of this cross-sectional study was to determine the metacholine response positivity and diagnosis of asthma in patients with chronic cough presenting to a hospital in Tehran during 2007 and 2008. Of 101 patients with chronic cough [with no history of sinusitis, recent pulmonary infection, bronchitis, gasteroesophageal reflux or underlying pulmonary conditions], 51.5% showed reactive airways disease to the methacholine test, 40.6% were unreactive and 7.9% were indeterminate. A positive methacholine challenge test was positively correlated with new wheezing. Although the methacholine challenge test is not a primary test for evaluating chronic cough, if no other reason for chronic cough is found, it may be a guiding test for asthma
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Index:
IMEMR (Eastern Mediterranean)
Main subject:
Asthma
/
Respiratory Sounds
/
Chronic Disease
/
Cross-Sectional Studies
/
Cough
Type of study:
Prevalence study
Limits:
Female
/
Humans
/
Male
Language:
English
Journal:
East Mediterr Health J.
Year:
2013
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