[Treatment of sudden deafness apropos of 447 cases].

Due to 447 cases of sudden deafness followed up and treated during the last ten years in their clinic, the authors report the results of their treatment method composed of normovolemic hemodilution followed by fractional perfusion of vasodilators, corticosteroids and anticoagulants. Presenting overall examination of this population with audiological, vestibular, clinical, hematological and radiological findings, they insist on the need for emergency treatment and discuss the different aspects of this problem. They also present a global evaluation of the investigations performed on some patient groups. The most spectacular recoveries are obtained in cases who present earlier and who have a hearing loss of low frequencies.