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Despite the use of hearing protection devices (HPDs) and engineering changes designed to improve workspaces, noise-induced hearing loss continues to be one of the most common and expensive disabilities in the US military. Many service members suffer acoustic trauma due to improper use of HPDs, sound levels exceeding the protective capacity of the HPDs, or(More)
Endolymphatic hydrops (EH) associated with otosclerosis has been noted for many years. However, the causal relationship of these two entities remains controversial. Having reviewed the records of patients with otosclerosis describing fluctuant hearing loss and vertiginous symptoms, the authors found the EH may coexist with otosclerosis preoperatively; they(More)
  • T J Yoo, J Shea, +8 authors X Du
  • 2001
We examined the sera of patients with Meniere's disease for the presence of antibodies against 8 inner ear antigens by enzyme-linked immunosorbent assay (ELISA). One hundred eight patients with Meniere's disease and 28 control subjects were studied. The antibodies against chicken type II collagen, bovine type II collagen, the cyanogen bromide cleaved(More)
OBJECTIVE To report the authors' experience with transtympanic electrocochleography during the past 10 years. STUDY DESIGN Retrospective case review. SETTING Otology/neurotology referral center. PATIENTS Transtympanic electrocochleography was performed on 2,421 ears of 2,140 patients from May 1990 to April 2000. INTERVENTION Clicks and tonebursts(More)
Mitochondrial pathology plays an important role in both inherited and acquired hearing loss. Inherited mitochondrial DNA mutations have been implicated in both syndromic and non-syndromic hearing loss, as well as in predisposition to aminoglycoside ototoxicity. Acquired mitochondrial dysfunction in the absence of mitochondrial DNA mutations has also been(More)
Recent clinical and laboratory evidence indicates that Meniere's disease is an immune-mediated disease. Dexamethasone perfusion of the inner ear through the round window plus intravenous dexamethasone often will stop the dizzy spells, reduce the fullness and low-frequency tinnitus, and sometimes improve the hearing in patients with Meniere's disease. The(More)
OBJECTIVE To study the relationship of the length of the external aperture of the vestibular aqueduct and the ratio of the summating potential and action potential (SP:AP) in patients with Meniere's disease. STUDY DESIGN Retrospective case study. SETTING Neurotology referral center. PATIENTS Fifty-four patients with Meniere's disease and nine control(More)
BACKGROUND Sensorineural hearing loss, a subset of all clinical hearing loss, may be correctable through the use of gene therapy. We are testing a delivery system of therapeutics through a 3 cell-layer round window membrane model (RWM model) that may provide an entry of drugs or genes to the inner ear. We designed an in vitro RWM model similar to the RWM(More)
OBJECTIVE This study aimed to describe far-advanced otosclerosis and to present the authors' results with stapedectomy in 78 ears with far-advanced otosclerosis. STUDY DESIGN The study design was a retrospective case review. SETTING The study was conducted at an Otology/Neurotology tertiary referral center. PATIENTS Stapedectomy was performed on 78(More)
OBJECTIVES To study the distribution of polylactic/glycolic acid-encapsulated iron oxide nanoparticles (PLGA-NPs) in chinchilla cochleae after application on the round window membrane (RWM). STUDY DESIGN AND SETTING Six chinchillas (12 ears) were equally divided into controls (no treatments) and experimentals (PLGA-NP with or without magnetic exposure).(More)