Objectives Idiopathic unilateral sudden sensorineural hearing loss (SSNHL) with simultaneous benign paroxysmal vertigo (BPPV) is known to be associated with poor hearing recovery. We aimed to investigate clinical findings in patients with SSNHL with BPPV and analyze prognostic factors including presence of BPPV related to hearing outcome.
Methods We retrospectively reviewed the electronic medical data of 14 patients with concurrent SSNHL and BPPV (combined group). We selected 52 patients without BPPV as a control group who have matched initial threshold of pure tone audiometry and age of each patient in the combined group. We evaluated clinical characteristics of all participants and compared hearing outcomes between the 2 groups. A multivariate logistic regression analysis was performed to investigate the factors related to hearing recovery.
Results Initial mean pure tone audiometry (PTA) threshold of combined group was 90.36±26.2 dB. Posterior canal was most commonly involved (n=7, 50%), and 8 (57%) patients showed abnormal video head impulse test results. There was no significant difference between hearing recovery rates of combined and control group (p=0.237) and mean pure tone audiometry threshold changes were not significantly different between the 2 groups (p=0.942). Old age (≥60 years), high initial PTA threshold (>90 dB), and obesity (body mass index ≥ 25 kg/m2) were poor prognostic predictors.
Conclusions There was no difference between hearing outcomes of combined group and profound SSNHL only group. BPPV was not a significant prognostic factor of SSNHL patients.
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Which Is More Important for the Prognosis of Sudden Sensorineural Hearing Loss with Vertigo, Canal Paresis or Benign Paroxysmal Positional Vertigo? Yong-Hwi An, Hyun Joon Shim Research in Vestibular Science.2021; 20(3): 101. CrossRef