Symptoms
Vertigo can last hours at a time and poor balance may persist afterward. Hearing loss tends to be one-sided at first, may remit and recur, and some patients will develop progressive, severe, permanent hearing loss. Continuous low-pitched tinnitus often accompanies the hearing loss. A sensation of fullness in the ears develops shortly before, at the onset, or during episodes.2
At episode onset, patients may suffer from sudden “drop attacks,” which are periods of strong sensation of directional tilting causing patients to overcompensate and fall in the other direction.
Providers should counsel patients to avoid driving or pull over if an episode is impending.
Fluid build-up in the inner ear (endolymph) precipitates the disease episodes and contributes to progressive hearing loss. Increased semicircular canal pressure impacts balance and fluid build-up in the cochlea, causes hearing loss. Patients are often unaware of the initial cause of their disease. The most common causes include genetics, trauma, and viral illnesses (eg, common colds, measles, or mumps). Episodes may be clustered, predictable and periodic, or years apart.
Ménière ’s disease is likely related to migraines in many patients because both are often inherited and share triggers, and some Ménière ’s patients experience aura, photophobia, and headache during episodes.3 A sizable minority of providers call migraines with Ménière’s-like symptoms “migrainous vertigo.”
Episode Triggers and Prevention
Salty foods, caffeine, nicotine, and stress are the most common dietary and lifestyle triggers.4 Smoking cessation is particularly important in this population. Pharmacists should remind smokers with Ménière ’s disease that quitting will improve disease control. Low sodium hypertension-directed diets (eg, using DASH instead of salt) aid Ménière ’s disease control. Sodium consumption below 2000 mg per day will manage most patients’ symptoms, and a 1500 mg target is effective for almost everyone.2 Alcohol, caffeine, and smoking reduction or cessation, as well as stress relief, are all healthful overall lifestyle interventions.
Oral Treatment
The most commonly used maintenance medications for Ménière’s disease are diuretics, such as Diamox Sequels (acetazolamide extended-release capsules) and Dyazide (triamterene/HCTZ).2 These medications relieve the inner ear fluid build-up thereby reducing vertigo frequency and avoiding hearing loss progression. Acetazolamide (a carbonic anhydrase inhibitor) alkalinizes urine, encourages kidney stone formation, and increases ammonia reabsorption and hypokalemia risk.5 The usual counseling points of Dyazide for hypertension apply to its use in Ménière’s disease. Little evidence exists investigating similar regimens. The single double-blinded cross-over study supporting Dyazide found no impact on hearing loss, but patients expressed an unspecified preference over placebo.6 Loop diuretics are less favored because of their ototoxic effects.......