[A role of social and occupational factors in the development of chronic forms of respiratory sarcoidoisis and its relapses].

The social status and the presence of occupational and household hazards were analyzed in 134 patients with torpid chronic and undulating course of sarcoidosis lasting 3 years or more to estimate the significance of the above factors when the course of sarcoidosis was poor. The fact that 162 cases of hazards (metals, building materials, wood, textile, and paper dust, smoking, chemical substances, contact with patients with tuberculosis) occurred in 113 patients and 49 of the 134 patients with chronic forms of the disease were exposed to psychoemotional factors suggests that dust substances and chemical elements of different kinds, frequent stressful situations, and the X-ray signs of fibrosis of sarcoidosis-induced changes due to the absence of timely examinations should be regarded as a risk factors of the torpid chronic course of respiratory sarcoidosis (just at the stage of its primary detection).