Sensorineural Hearing Loss with Demyelination on MRI in Young Adults

Clinical Significance and Diagnostic Implications

• Demyelinating processes, particularly multiple sclerosis (MS), are recognized causes of sudden sensorineural hearing loss (SSNHL) in young adults, according to the American Academy of Otolaryngology-Head and Neck Surgery 1, 2
• MRI has the highest diagnostic yield (7-13.75% pathogenic abnormalities) of any test in SSNHL, making it essential rather than optional, as recommended by the American Academy of Otolaryngology-Head and Neck Surgery 1, 2

Recommended Diagnostic Workup

• MRI with dedicated internal auditory canal (IAC) protocol is essential and should include evaluation of the brainstem and thalami, not just the IAC, as suggested by the American College of Radiology 3, 4, 5
• Gadolinium contrast administration can facilitate visualization of inflammatory changes including neuritis and active demyelinating lesions, according to the American College of Radiology 3, 4, 5

Treatment Considerations

• Corticosteroids should be offered as initial therapy within 2 weeks of symptom onset for SSNHL, as recommended by the American Academy of Otolaryngology-Head and Neck Surgery 2, 6
• Intratympanic steroids may be offered as salvage therapy for incomplete recovery after initial systemic therapy, according to the American Academy of Otolaryngology-Head and Neck Surgery 2, 6

Prognosis and Follow-up

• Approximately one-third to two-thirds of patients with SSNHL may recover some hearing within 2 weeks, but recovery patterns differ in MS patients, as reported by the American Academy of Otolaryngology-Head and Neck Surgery 2, 6
• Follow-up audiometry should be obtained within 6 months of initial diagnosis, as recommended by the American Academy of Otolaryngology-Head and Neck Surgery 2, 6