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Inner Ear, Meniere Disease, Medical Treatment: Differential Diagnoses & Workup
Updated: Mar 25, 2009
- Overview
- Differential Diagnoses & Workup
- Treatment & Medication
- Follow-up
- Multimedia
Differential Diagnoses
Other Problems to Be Considered
Acoustic neuroma and other brain tumors
Autoimmune processes (especially lupus, rheumatoid arthritis, sarcoidosis, periarteritis, giant cell arteritis, Susac and Cogan syndromes)
Congenital anomalies
Diabetes
High cholesterol or triglyceride levels
Inner ear inflammation
Labyrinthitis
Lyme disease
Microvascular compression syndromes
Multiple sclerosis
Neurosyphilis
Otosclerosis
Perilymphatic fistula
Salt or water imbalance
Thyroid disease
Thyroid hormone disease
Transient ischemic attacks and stroke
Trauma
Vestibular migraine
Viral infections
Workup
Laboratory Studies
- A panel of blood tests is used to rule out obvious metabolic imbalances, infections, and hormonal problems. Tests of the following should be performed:
- Thyroid stimulating hormone (TSH), T4, and T3 to rule out hyperthyroidism and hypothyroidism
- Glucose to rule out diabetes
- Sedimentation rate and antinuclear antibody to rule out autoimmune disorders
- Urine to rule out proteinuria and hematuria and indicators of otorenal syndrome
- CBC count to rule out anemia and leukemia
- Electrolyte levels to rule out salt/water imbalance
- Fluorescent treponemal antibody (FTA-ABS) to rule out neurosyphilis and Lyme disease
- Allergy testing is needed for allergy-mediated Ménière disease.
Imaging Studies
- MRI of the brain is used to detect the following:
- Abnormal masses or anatomy, specifically, acoustic neuromas or other cerebellopontine angle lesions
- Other lesions (eg, multiple sclerosis, Arnold-Chiari malformations)
- Tumors (rarely found but should be ruled out)
- CT scans are used to detect the following:
- Dehiscent superior semicircular canals
- Widened cochlear and vestibular aqueducts
Other Tests
- Audiometry is particularly helpful to document present hearing acuity and subsequent fluctuations. Occasionally, patients fail to notice loss at specific frequencies.
- A low-frequency or mixed low- and high-frequency loss may develop. Typically, lower frequencies are affected more often than higher frequencies because of preferential sensitivity of the apex to hydrops.
- Administering multiple hearing tests to document fluctuating hearing loss is helpful in diagnosing Ménière disease.
- Transtympanic electrocochleography (ECoG) is used to detect distortion of nerve-containing membranes of the inner ear (presumably due to pressure fluctuations of the perilymph pressure) and may show evidence of cochlear involvement.
- ECoG is used to measure the ratio of summating potential (probably arising from movement of the basilar membrane) and action potential on the nerve in response to auditory stimuli. Hydrops is suggested when the ratio is greater than 35%.
- ECoG is most accurate when Ménière disease is active.
- Electronystagmography (ENG) and videonystagmography (VNG) is performed to test vestibular function of the inner ear, particularly that of the semicircular canals.
- Typically, endolymphatic hydrops causes reduced vestibular response in the affected ear, but increased vestibular response may develop secondary to an irritative lesion.
- ENG is used to determine responsiveness of the inner ear to movement and caloric stimulation. It tests central and peripheral function and can help localize lesion sites.
- Perform ENG when the patient has an empty stomach and when therapy with meclizine, antihistamines, and sedatives has been discontinued for 2 weeks, as these drugs may alter the test results.
- ENG may cause dizziness and nausea.
- Direction of spontaneous nystagmus during or after an episode of Ménière syndrome is not a reliable indicator of the lesion site. An irritative phase may occur during the attack (fast phases directed toward involved ear), followed by a paretic phase (fast phases directed toward the opposite ear).
More on Inner Ear, Meniere Disease, Medical Treatment |
| Overview: Inner Ear, Meniere Disease, Medical Treatment |
Differential Diagnoses & Workup: Inner Ear, Meniere Disease, Medical Treatment |
| Treatment & Medication: Inner Ear, Meniere Disease, Medical Treatment |
| Follow-up: Inner Ear, Meniere Disease, Medical Treatment |
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References
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Monsell EM. New and revised reporting guidelines from the Committee on Hearing and Equilibrium. American Academy of Otolaryngology-Head and Neck Surgery Foundation, Inc. Otolaryngol Head Neck Surg. Sep 1995;113(3):176-8. [Medline].
Bretlau P, Thomsen J, Tos M, et al. Placebo effect in surgery for Menière's disease: nine-year follow-up. Am J Otol. Jul 1989;10(4):259-61. [Medline].
Densert B, Sass K. Control of symptoms in patients with Meniere's disease using middle ear pressure applications: two years follow-up. Acta Otolaryngol. Jul 2001;121(5):616-21. [Medline].
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Odkvist LM, Arlinger S, Billermark E, et al. Effects of middle ear pressure changes on clinical symptoms in patients with Ménière's disease--a clinical multicentre placebo-controlled study. Acta Otolaryngol Suppl. 2000;543:99-101. [Medline].
Pyykkö I, Ishizaki H, Kaasinen S, et al. Intratympanic gentamicin in bilateral Menière's disease. Otolaryngol Head Neck Surg. Feb 1994;110(2):162-7. [Medline].
Shea JJ Jr. Classification of Menière's disease. Am J Otol. May 1993;14(3):224-9. [Medline].
Shea JJ Jr, Ge X. Streptomycin perfusion of the labyrinth through the round window plus intravenous streptomycin. Otolaryngol Clin North Am. Apr 1994;27(2):317-24. [Medline].
Silverstein H, Lewis WB, Jackson LE, et al. Changing trends in the surgical treatment of Ménière's disease: results of a 10-year survey. Ear Nose Throat J. Mar 2003;82(3):185-7, 191-4. [Medline].
Silverstein H, Smouha E, Jones R. Natural history vs. surgery for Menière's disease. Otolaryngol Head Neck Surg. Jan 1989;100(1):6-16. [Medline].
Further Reading
Keywords
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Differential Diagnoses & Workup: Inner Ear, Meniere Disease, Medical Treatment