الفهرس | Only 14 pages are availabe for public view |
Abstract Recent developments in treatment of tinnitus have increased the interest of neurotologists in the differential diagnosis of this disorder and its management. These developments have also resulted in intensified research directed at the identification of the cause of tinnitus and treatment. This study was designed to study the effect of intratympanic injection of Lidocaine, dexamethasone and gentamicin in tinnitus patients with study the effects on guinea pig cochlea, also to evaluate the results clinically, and audiologically by pure tone audiometry, TEOAEs and ABR. The present study comprised a study group of 60 subjects complaining of tinnitus divided into three groups for each drug and a control group of 10 subjects complaining of tinnitus. Both group had normal hearing and normal middle ear functions, and injected with 0.5 ml once weekly for four weeks. The study included also 12 guinea pig for intratympanic injections of the three medication and another 4 for saline control injection. All patients in the present study were submitted to full history taking, self-assessment tinnitus distress questionnaire, ontological, head and neck examination. pure tone audiometry including air and bone conduction, tynIponometey for middle ear functions before T-tube insertion, TEOAEs and ABR C.T temporal bone and ultrasonogroph for neck if nteded. |