Relationship Between the Extent of Endolymphatic Hydrops and the Severity and Fluctuation of Audiovestibular Symptoms in Patients With Menière's Disease and MRI Evidence of Hydrops.

Objective: To characterize the short-, middle-, and long-term occurrence of vertigo attacks in a large population of Menière's disease (MD) and to investigate the relationship between the extent of endolymphatic hydrops (ELH) and the severity of audiovestibular symptoms.

Study Design: Prospective observational study.

Methods: One hundred ninety-two patients with clinically definite MD participated in this study.