الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Idiopathic sudden sensorineural hearing loss (ISSNHL) is one of the most controversial issues in otology. There have been countless publications and debates concerning ISSHL over the last decades. ISSNHL can be defined as a sensorineural hearing loss of sudden onset or one that happens in minutes, hours or even in a few days. The hearing impairment varies as far as intensity and sound frequency are concerned, some specifically say it is a 30dB hearing loss minimum, in at least three continuous frequencies with all known causes have to be ruled out previously The etiology of the ISSNHL, as the very name states (idiopathic), is still unknown, what makes the topic still very controversial. In only 10% of the cases the cause can be found. The five most common causes that can explain the etiology of ISSNHL are: Vascular causes, autoimmune diseases, rupture of the labyrinthine membrane, viral infections and psychosomatic disorders. Although many different treatments have been tried for ISSNHL, steroids is the only truly proven treatment modality.