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Year : 2013  |  Volume : 2  |  Issue : 4  |  Page : 237-241

Aeroallergen sensitivity among patients suffering from bronchial asthma in Bangalore

1 Department of Community Medicine, Kempegowda Institute of Medical Sciences (KIMS) Hospital and Research Center, Bangalore, India
2 Department of Pulmonary Medicine, Allergy Center, Kempegowda Institute of Medical Sciences (KIMS) Hospital and Research Center, Bangalore, India

Correspondence Address:
Giriyanna Gowda
Medical Officer, Allergy Center and Assistant Professor, Department of Community Medicine, Kempegowda Institute of Medical Sciences(KIMS), Banashankari 2nd Stage, Bangalore - 560 070, Karnataka
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2278-344X.126710

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Background: Asthma is a serious public health problem throughout the world and its prevalence has increased in last 2-3 decades. Allergens are one of the many factors which trigger an attack of asthma. Skin prick test is useful in identifying the offending allergen in bronchial asthma. Aim: To identify the possible offending allergens in patients of bronchial asthma. Materials and Methods: The study was a descriptive study conducted at allergy center, Kempegowda Institute of Medical Sciences Hospital and Research Center, Bangalore from January to December 2011. Skin prick test was done in 139 patients suffering from bronchial asthma using 49 allergens extracts. Statistical Analysis: Frequency, proportions, Chi-square test, odds ratio, and 95% confidence interval was used. Results: Out of 139 patients who underwent the skin prick tests, 40% (56) were males and 60% (83) were females. Majority, that is, 60% were in the age group of 21-40 years. Forty-three percent (60) had family history of asthma/atopy, 80% (111) had allergic rhinitis, 24% (34) had chronic urticaria, and 24% (33) had allergic conjunctivitis. Out of 139 patients, 100 (71.94%) were sensitive for one or more allergens. The common offending allergens found in the study were dust mites (Dermatophagoides farinae and D. pteronyssinus (DF and DP)) - 49.28%, dusts - 7.2%, pollens - 6.77%, insects - 6.62%, fungi - 4.53%, and epithelia - 1.92%. Conclusion: The most common allergens in bronchial asthma were dust mites followed by dusts and pollens. Identifying possible allergens in asthma patients help in allergen avoidance and immunotherapy in these patients.

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