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  • Title: Hyperbaric oxygen therapy for sudden sensorineural hearing loss: a prospective trial of patients failing steroid and antiviral treatment.
    Author: Horn CE, Himel HN, Selesnick SH.
    Journal: Otol Neurotol; 2005 Sep; 26(5):882-9. PubMed ID: 16151333.
    Abstract:
    OBJECTIVE: To investigate the safety and efficacy of hyperbaric oxygen therapy (HBOT) in adult patients with sudden sensorineural hearing loss (SSNHL) who fail standard of care steroid and antiviral therapy. STUDY DESIGN: Prospective cohort study. SETTING: An urban tertiary referral center. PATIENTS: Nine adult patients presenting with SSNHL from December 2002 through February 2004. Patients with acute onset SSNHL of greater than 30 dB in three contiguous frequencies who failed to show audiometric improvement after 2 weeks of systemic steroids and antivirals were enrolled. INTERVENTIONS: Study patients received HBOT at 2.0 atmospheric pressure for 90 minutes while breathing 100% oxygen under a clear plastic hood in the chamber. Treatments were administered daily for 10 days over a 2-week period. MAIN OUTCOME MEASURES: Pre-and postHBOT mean hearing gains measured in decibels for pure-tone audiometry at 0.5, 1, 2, 3, and 4 KHz for bone and additional 8 KHz for air; pure-tone averages for air and bone; speech reception thresholds; and speech discrimination levels. Patient-reported subjective recovery rates (completely, substantially, partially, not improved) were also recorded. RESULTS: Overall, two patients had a dramatic improvement, and one patient had a dramatic improvement in his speech discrimination without improvement in other audiometric measures. Six patients had no demonstrable hearing gains. Two patients had complications of serous otitis media requiring myringotomy and pressure equalizing tube placement. No other complications were observed. CONCLUSIONS: Secondary HBOT after failure of systemic steroid and antiviral therapy may be associated with hearing gains in some patients with SSNHL.
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