[The results of bronchoscopy in patients of different ages with chronic bronchitis]

Bronchological examination of 1769 patients with chronic bronchitis (CHB) of different age groups revealed that the development of that or another form of endobronchitis (catarrhal, purulent, atrophic) did not depend on the age, duration of disease and other causes. It may be suggested that the genetic predisposition to development of definite forms of endobronchitis. Apparently, most rigidly determined is the development of the atrophic form of endobronchitis as its frequency was similar in all groups, in different forms of CHB.