[Physical and chemical markers of chronic obstructive lung disease development in industrial workers].

The article demonstrates that patients with chronic obstructive lung disease (COLD) of both mixed and bronchitis forms with medium severity grade appeared to have 2 types of changes in morphologic types of serum faces. Patients with various clinical forms of severe COLD presented unidirectional change in morphologic types of serum faces. Patients with various forms of moderate COLD had one variant of morphologic types of serum faces was close to that in the patients with more severe clinical course--so that face can be considered as a "transitional form" between moderate and severe COLD. These results are interesting in specifying diagnostic criteria of COLD severity and additional diagnostic criteria of the severity grade.