SENSORINEURAL HEARING LOSS AND MIDDLE EAR INVOLVEMENT IN PATIENTS WITH RHEUMATOID ARTHRITIS
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Hearing impairment in rheumatoid arthritis has been shown by sever al studies. Some studies showed the sensorinewal nature of hearing loss denoting inner ear affection while others showed conductive hearing loss denoting middle ear affection. The aim of this study was to assess the affection of the Auditory Func tion in relation to rheumatoid arthritis and its relation to the activity of the disease. This study was conducted upon two groups: study group and control group. The study group included 50 patients with rheumatoid ar thritis and normal ear, drum and middle ear by clinical examination, cas es treated by ototoxic drugs were excluded from the study. The study group subdivided into active and inactive group and control group includ ed 26 patients free from rheumatoid and hearing loss. The study showed 22% (22 ears) from the study group had SNHL and 6% (6 ears) had mixed hearing loss. Conductive deafness not detected in any case of study groups. The results of ABR, SISI, tone decay and WDS showed that the lesion most probably occur in cochlea. The study showed some cases with ossicular loosening and others with Stiffness. There is no difference Between RF +ve and RF-ve, also ac tive rheumatoid and inactive regarding to hearing loss.