BACKGROUND Tensor tympani contraction may have a "signature" audiogram. This study demonstrates audiometric findings during voluntary tensor tympani contraction. METHODS Five volunteers possessing the ability to voluntarily contract their tensor tympani muscles were identified and enrolled. Tensor tympani contraction was confirmed with characteristic tympanometry findings. Study subjects unde...

In a hearing conservation program (HCP), each employee’s baseline audiogram gives the reference hearing thresholds for that individual. The results of later monitoring audiograms are compared to the baseline to detect significant changes in hearing thresholds. When significant shifts for the worse are identified, follow-up actions are taken to improve employee protection from noise. As specifie...

ra (rheumatoid arthritis) is a chronic multisystem disease with a variety of systemic manifestations. one of these manifestations, is hearing disorder, so study of the relation between ra and hearing disorders is seem important. this was a case-control study which has done from december 2004 to august 2006. this study compared 50 patients with ra, with age, sex and job-matched as control. audio...

OBJECTIVE The purpose of this study was to examine the difference between self-reported hearing status and hearing impairment assessed using conventional audiometry. The associated factors were examined when a concordance between self-reported hearing and audiometric measures was lacking. METHODS In total, 19,642 individuals ≥20 years of age who participated in the Korea National Health and N...