| Summary: | Pulmonary complications have been described in patients with inflammatory bowel disease. The aim of this study was to evaluate bronchial hyppersponsiveness (BHR) in patients with Crohn's disease (CD) and ulcerative colitis (UC). Fifteen patients (8 men, 7 women, mean age: 42.20 ± 12.20 years) participated in the study. None of the patients had a prior history of respiratory disease or suffered from other systematic disease. Skin prick tests for common allergens (such as pollens, mites, foods and moulds) were administered to all patients of the study. The control group included 15 healthy volunteers (10 men, 5 women, mean age: 40.33 ± 5.06 years). The skin tests showed that 3 of 15 patients with inflammatory bowel disease were sensitive to common allergens (two patients to mix grasses and one to D. Pteronysinnus ). In the control group, one subject was sensitive to D. Pteronysinnus. BHR was estimated after methacholine challenge. The frequency of BHR among the patients with inflammatory bowel disease was 7 of 15 (46.60%), compared with only one in the control group who was positive at the maximum dosage of methacholine (16 mg/dl). Our results indicate that there is an increased frequency of BHR in patients with inflammatory bowel disease.
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