2022 Early Hearing Detection & Intervention Virtual Conference

March 13 - 15, 2022

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10/27/2019  |   8:00 AM - 10:00 AM   |  Outcomes of Idiopathic Sudden Sensorineural Hearing Loss: Two Decades of Experience   |  Coconino and La Paz Rooms

Outcomes of Idiopathic Sudden Sensorineural Hearing Loss: Two Decades of Experience

Objectives: 1) Determine demographic and medical risk factors of patients who presented with idiopathic sudden sensorineural hearing loss (ISSNHL); 2) identify the modality of treatments they underwent; and 3) evaluate long-term follow up and hearing outcomes. Design: This is a retrospective review of patients who presented to a tertiary care medical center with unilateral ISSNHL between January 1998 and December 2017. Demographics, medical co-morbidities, pure tone audiometry, and treatment outcomes were collected. Results: Two hundred and four patients met inclusion criteria (mean age: 55.4 years, 52.5% female, 83.3% Caucasian). Of these, 129 (63.2%) did not receive treatment prior to our evaluation and were included in the analysis. Pre-treatment pure tone average (PTA) was 61.9 ± 2.5 decibels (dB). Mean speech recognition threshold (SRT) was 44.6 ± 2.4 dB and mean word recognition score (WRS) was 64.5 ± 3.8 %. Seventy-six patients (59.9%) were treated with oral corticosteroids. The remainder were treated with intratympanic (IT) steroid injections (7.2%) or oral steroids followed by IT injections (19.4%). Post-treatment PTA (45.6 ± 2.6 dB) was improved from baseline (p<0.01), as was SRT (27.5 ± 1.9 dB; p<0.01) and WRS (81.8.0 ± 3.1%, p<0.01). Mean follow-up duration was 17.9 ( 29.2) months. Patients were recommended to use hearing aids (26.3%), contralateral routing of signal device (13.6%), bone-anchored hearing aids (4.5%), or cochlear implant (1.9%). Less than 20% of patients reported active use of hearing amplification. Ninety patients (69.8%) experienced subjective improvement in hearing while only 55 (42.6%) showed audiometric improvement. Conclusion: Patients with ISSNHL experienced audiometric improvement after treatment but many had persistent hearing loss. The duration of follow-up was short with most patients lost to follow up after two years. Future studies are needed to identify factors that contribute to short follow-up and poor compliance with hearing amplification.

  • Determine demographic and medical risk factors of patients who presented with idiopathic sudden sensorineural hearing loss (ISSNHL)
  • Identify the modality of treatments patients with ISSNHL underwent
  • Evaluate long-term follow up and hearing outcomes for ISSNHL

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Presenters/Authors

Yanjun Xie (), University of Michigan , xieya@med.umich.edu;
Dr. Jun is a second year resident in otolaryngology head and neck surgery at the University of Michigan.


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Norman Orabi (), University of Michigan School of Medicine, orabi@med.umich.edu;
Mr. Orabi is a medical student at the University of Michigan.


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Teresa Zwolan (), University of Michigan Otolaryngology, zwolan@med.umich.edu;
Dr. Zwolan is the head of the cochlear implant program at the University of Michigan.


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Gregory Basura (), University of Michigan; Department of Otolaryngology, gbasura@umich.edu;
Dr. Basura is an Assistant Professor at the department of Otolaryngology/Head and Neck Surgery at the University of Michigan; Division of Otology/Neurotology-Skull Base Surgery. He has training in both basic neuroscience and surgery. He is involved in investigating disease processes like tinnitus and auditory aberrancy from a fundamental basic science perspective as well as maintaining the clinical opportunity to extrapolate investigative inquiry to the human condition. He is involved in an outreach and long-term medical partnership with Komfo Anokye Teaching Hospital (KATH) in Kumasi, Ghana that is geared towards establishing sustained platforms to expand education and research initiatives in otology and audiology.


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