Aim: To specify mechanisms of bronchial obstruction in bronchoectasia (BE).
Material and methods: Clinical, x-ray, bronchological and spirographic examinations with broncholytic test were made in 26 BE patients aged 16-66 years (14 males, 12 females). The membrane-receptor complex of erythrocytes was based on the effect of adrenoantagonist propranolol on osmotic erythrocytic resistance (obsidan test) and effect of adrenoagonist adrenalin on dynamics of ESR.
Results: Allergological anamnesis was detected in 69% of BE patients, hereditary allergological anamnesis--in 22%, membrane-receptor changes characteristic for atopic condition by obsidan test--in 46%, fractional erythrocytic sedimentation with adrenalin--in 42%. Bronchoobstruction syndrome occurred in 37% cases with mean values FEV1 46 +/- 6.2%, MSV50 17.4 +/- 3%, MSV75 14.4 +/- 0.9%. The broncholytic test detected a mean increment of FEV1 by 12.2 +/- 3.1%. Latent bronchospasm was revealed in 33% patients with BE.
Conclusion: The correlation analysis suggests that among mechanisms of bronchial obstruction in bronchoectasia, bronchospasm is of great importance especially in allergological anamnesis pathogenesis of which involves disorders of membrane-receptor complex.