[A long-term prospective observation of the course of dust-induced bronchitis in mechanical engineering workers]. / Dlitel'noe prospektivnoe nabliudenie za techeniem pylevogo bronkhita u rabochikh mashinostroeniia.

A study of 206 machine builders in dynamics (up to 15 years) with dust-induced bronchitis showed that the disease has a tendency to advancing within the first three years, especially in those with a combination of noxious professional factors (dust, heat, hard physical work). Negative risk factors: working conditions, preceding unspecific respiratory infections, smoking.

[The prevalence of chronic bronchitis among workers in the dust-exposed occupations of machinery building]. / Rasprostranennost' khronicheskogo bronkhita sredi rabochikh pylevykh professii mashinostroeniia.

Mass screenings (2455 persons) evidence high incidence of chronic bronchitis among workers of dust-related professions in the machine-building industry (foundry workers, electric welders, etc.) as compared with workers not subjected to effects of the dust factor. The frequency of chronic bronchitis was effected by length of work, character of dust profession, age, smoking.

[Laser therapy in dust bronchitis]. / Lazeroterapiia pri pylevom bronkhite.

Laser therapies of 43 dust bronchitis patients (4 cases in 1st stage and 39 cases in 2nd stage) were performed in comparison with routine therapeutic procedures of 28 patients (6 cases in 1st stage and 22 cases in 2nd stage). 14 acupuncture points were selected. A good therapeutic effect was attained in 16.3% sample group and 7.1% control group patients, satisfactory results--in respectively 58% and 42.9% cases, insignificant results--in 25.6% and 50% cases. Along with the favourable therapeutic effect, a positive influence of laser therapy on the immune system was established, particularly on the immunity T-system, in dust bronchitis cases. Laser therapy was recommended as part of complex treatment procedures for dust bronchitis patients.