Sinusoidal harmonic acceleration labyrinthine test: clinical experience.

Responses of 135 patients subjected to Sinusoidal Harmonic Acceleration Labyrinthine Test are reported. These patients are categorized into four clinical impression disease groups: 1) classic Menière's disease; 2) labyrinthine ischemia; 3) neurological diseases; 4) no labyrinthine or neurological disease. A case report in each category is presented. We find Sinusoidal Harmonic Acceleration Labyrinthine Test to be a useful tool in evaluation of the dizzy patient.