Spontaneous Hearing Recovery Two Years Following Onset of Bilateral Sudden Sensorineural Hearing Loss: Miracle May Happen any Time.

Sudden sensorineural hearing loss is a medical emergency. Incidence is very low. Unilateral SSNHL is common and mostly idiopathic. Spontaneous recovery rate is 30-65% within 2 weeks. Bilateral SSNHL is a rare subset, less than 5% of reported SSNHL and higher association with systemic disease. Prognosis is very poor following treatment. Recovery of hearing after 3 months following SSNHL is a very rare entity. Spontaneous hearing gain after a long time is a miracle that happened in the reported case. A 12-year-old female child suddenly recovered serviceable hearing few days prior to the date of cochlear implant surgery following SSNHL. She developed a very rare bilateral sudden sensorineural hearing loss two years back. Bilateral sudden sensorineural hearing loss is a rare subset though unilateral SSHL is little common. Recovery of hearing occurs mostly within two weeks, very rare beyond sixty days. Our case reported sudden hearing gain about two years after insidious SSNHL. Explanations not clear provably reestablishment of vascularity to cochlear or spontaneous elimination of underlying cause. No available data found, further study is needed.