Transtympanic Gentamicin vs. Steroids in Refractory Meniere's Disease

Meniere's disease is characterised by episodic spontaneous vertigo attacks with hearing loss, ringing sounds and fullness in the ear. In one out of five patients, standard first line medical treatment is not effective in controlling vertigo attacks. For these incapacitated patients, gentamicin injections through the ear drum is a well established minimally invasive treatment. Major surgery of the balance organs or nerve, risking complete hearing loss, CSF leak, meningeal infections, are rarely performed nowadays. Gentamicn is very effective in controlling vertigo and acts by chemical ablation of end organs. As hearing and balance organs are entwined around each other, gentamicin treatment does not come without the risk of hearing loss. In fact, meta-analysis shows hearing deterioration in 13% to 35% percent of gentamicin treated patients. On the other hand, steroids are drug of choice for autoimmune inner ear disease and commonly used for sudden hearing loss. They are non toxic drugs without any known side effects during local treatment in ear. We will compare the two in this randomised, double blind trial.