Abstract
Inhalation of pure oxygen mixed with 5% CO2 gas has been utilized as therapy in cases sudden sensorineural hearing loss.
Three patients in whom hearing was lost 44, 25 and 45 days, respectively, after the occurrence of sudden deafness and without improved hearing, showed a significant improvement in hearing after inhalation of this gas mixture. This therapy was also effective for patients observed soon after onset of hearing loss.
