[State of the hearing and equilibrium organs in workers exposed to carbon monoxide].

In 78 men occupationally exposed to carbon monoxide, audiometric and electronystagmographic examinations have been carried out. In 66.6% of cases, receptive hearing impairment has been found. Vestibular changes, found in 79.5% of the group concerned, are regarded as typical and frequent effects of CO exposure. The results confirm ototoxic effects of carbon monoxide.