What Is Ménière's Disease?

Ménière's disease is a disorder of the inner ear that causes episodes of severe dizziness known as vertigo, fluctuating hearing loss, tinnitus, and a sensation of fullness or pressure in the affected ear. It is also referred to as Meniere's disease, idiopathic endolymphatic hydrops, or Meniere's syndrome. The condition usually affects only one ear at first, but over time it can involve both ears in about half of all people.

Key Symptoms

The symptoms of Ménière's disease vary from person to person, and attacks can occur suddenly or after a period of warning symptoms. Classic features include:

• Vertigo: a spinning sensation that may last from twenty minutes to twelve hours, often severe enough to cause nausea and vomiting.
• Tinnitus: a ringing, roaring, buzzing, or hissing sound in the affected ear that may intensify before an attack.
• Hearing loss: a fluctuating low-frequency hearing loss that may become permanent over time.
• Aural fullness: a feeling of pressure or fullness deep inside the ear.
• Imbalance: unsteadiness or difficulty walking in a straight line, especially between attacks.

Some people also experience drop attacks, which are sudden falls without warning or loss of consciousness. These are thought to be triggered by a sudden change in inner ear pressure.

Causes and Risk Factors

The exact cause of Ménière's disease remains unknown. The most widely accepted explanation is endolymphatic hydrops, a disorder caused by the abnormal accumulation of endolymph fluid within the fluid-filled chambers of the inner ear. This buildup can increase pressure and damage the delicate sensory cells that control hearing and balance.

Several factors may contribute to fluid imbalance or inflammation in the inner ear, including:

• Poor drainage of endolymph fluid due to blockage or narrow anatomy.
• Abnormal immune system response after a viral infection.
• Genetic predisposition, since some families have more than one affected member.
• Impaired blood flow to the inner ear.
• Altered blood pressure or dysfunction of the autonomic nervous system.

How Ménière's Disease Is Diagnosed

No single test can confirm Ménière's disease. A diagnosis is usually made by a specialist based on your history, a physical examination, and a set of hearing and balance tests. An important part of the diagnostic process is ruling out other conditions that cause similar symptoms, such as benign paroxysmal positional vertigo, vestibular migraine, labyrinthitis, or acoustic neuroma.

Common evaluations include:

• Audiometry: a hearing test to measure the degree and pattern of hearing loss.
• Videonystagmography or electronystagmography: tests that record eye movements to assess balance system function.
• Electrocochleography: a test that measures electrical activity in the inner ear in response to sound.
• Vestibular evoked myogenic potentials: tests that evaluate the function of specific balance organs.
• Magnetic resonance imaging (MRI) of the brain and inner ear to exclude other structural causes.

Treatment Options

Treatment for Ménière's disease aims to reduce the number and severity of vertigo attacks, relieve tinnitus, and preserve hearing. A combination of lifestyle changes, medication, and sometimes surgical procedures may be recommended.

Conservative measures include a low-salt diet, avoiding caffeine, alcohol, and tobacco, staying well hydrated, and managing stress. Reducing salt intake helps lower the volume of fluid in the body and may decrease endolymph pressure.

Medications commonly used include:

• Diuretics to reduce fluid retention.
• Betahistine, which may improve blood flow in the inner ear.
• Meclizine, diazepam, or other vestibular suppressants to relieve vertigo.
• Anti-nausea medicines for attack-associated vomiting.
• Corticosteroids taken by mouth or injected directly into the middle ear to reduce inflammation.

For people who do not respond to initial therapy, additional options include:

• Meniett device: a small pressure pulse generator that delivers air pressure pulses through the ear canal to reduce fluid buildup.
• Intratympanic gentamicin therapy: an antibiotic injected into the middle ear that selectively damages the balance organ so the brain can compensate. This is often effective for controlling vertigo but carries a small risk of hearing loss.
• Endolymphatic sac decompression: a surgical procedure that relieves pressure by opening the sac that drains endolymph fluid.
• Vestibular nerve section: cutting the nerve that carries balance signals from the inner ear to the brain, which controls vertigo while preserving hearing in many cases.
• Labyrinthectomy: removal of the entire inner ear balance and hearing apparatus, performed only when hearing has already been lost completely.

Lifestyle and Self-Care

Living with Ménière's disease can be challenging, but many people find ways to manage the condition effectively. Keeping a symptom diary can help identify triggers such as salty meals, lack of sleep, stress, or hormonal changes. Vestibular rehabilitation exercises may improve balance and reduce the sense of dizziness between attacks. Using a hearing aid or other assistive listening devices can improve communication and quality of life.

Prognosis and Outlook

The course of Ménière's disease varies. Some people have only a few mild attacks, while others experience frequent, disabling vertigo. In many cases, the disease progresses gradually and then becomes less active over a period of years. However, repeated attacks can lead to permanent hearing loss and ongoing imbalance. Although there is currently no cure, most people with Ménière's disease can be helped with treatment and adapt well to the condition over time.