[Electronystagmographic examinations in workers of the repair brigade at the "Organika-Azot" chemical factory in Jaworzno].

In order to evaluate the vestibular organ, electronystagmography (ENG) was performed in 43 overhaul workers of the chemical plant producing pesticides and in the control group of 50 healthy non-exposed inhabitants of the same region. Central impairment of the vestibular organ was significantly more frequent in workers (37.2%) than in controls (16.0%). A mixed impairment was found in one worker and in one persons from the control group. Neither the study group nor the control group showed signs of peripheral lesion. The ENG is a useful method for assessment of early symptoms of the central nervous system dysfunction.