Aim: The aim was to present methodology and interpretation of results of phase shift distortion-product otoacoustic emissions (Shift-DPOAE) in healthy subjects and patients with Meniere’s disease in remission stage and at the time of attack.
Material and methods: Shift-DPOAE was performed in two healthy subjects without any otologic or neurologic problems and in six patients diagnosed with Meniere’s disease. Results obtained in eight subjects are oresented. The following tests were performed in all subjects: detailed otoscopy, impedance audiometry, pure tone audiometry, DPOAE, and Shift-DPOAE.
Results: The normal Shift-DPOAE results obtained in two healthy subjects as well as the normal (two subjects) and abnormal (four subjects) Shift-DPOAE results obtained in patients with Meniere's disease are presented in order to thoroughly discuss the methodology and interpretation of the Shift-DPOAE study.
Conclusions: The Shift-OAE is a promising diagnostic tool with great clinical potential in the diagnosis and monitoring of Meniere's disease in patients whose hearing has not yet been damaged. This examination is completely non-invasive, it can be carried out immediately after an attack of the disease with symptoms present at the time of the test, and it takes just a few minutes.
A Comparison of Distortion Product Otoacoustic Emission Properties in Ménière’s Disease Patients and Normal-Hearing Participants
