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  • Title: Spontaneous Labyrinthine Hemorrhage: A Case Series.
    Author: Vivas EX, Panella NJ, Baugnon KL.
    Journal: Otolaryngol Head Neck Surg; 2018 Nov; 159(5):908-913. PubMed ID: 29966483.
    Abstract:
    OBJECTIVES: To describe patient characteristics, audiometric outcomes, and magnetic resonance imaging (MRI) signal patterns in patients with suspected labyrinthine hemorrhage. STUDY DESIGN: Retrospective review. SETTING: Tertiary medical center. SUBJECTS AND METHODS: Radiology database was queried for terms related to labyrinth hemorrhage or labyrinthitis and then selected for patients in which labyrinthine hemorrhage was suspected in the report. Eleven patients were identified and all treated at our institution. Blinded assessment of temporal bone MRI by 2 experienced neuroradiologists was performed and interrater reliability assessed. Patient demographics, medical comorbidities, and audiometric outcomes are described. RESULTS: Of the 11 patients identified, the median patient age was 60 years; 7 were female and 4 male. Ten of 11 patients presented with unilateral sudden sensorineural hearing loss (SNHL), and 8 of 11 had associated vertigo. One patient experienced vertigo without hearing loss. Of those presenting with sudden SNHL, 82% were left with nonserviceable American Academy of Otolaryngology-Head and Neck Surgery class D hearing. Interrater reliability for detecting T1 signal abnormalities was moderate but very good for detecting fluid attenuation inversion recovery (FLAIR) signal abnormalities. Most patients had existing hypertension. Average follow-up was 13.3 months. CONCLUSION: We present the largest cohort of patients with radiographic diagnosis of labyrinthine hemorrhage using T1 and FLAIR signal abnormalities on MRI. Most patients presented with a profound unilateral sudden SNHL that did not recover. Our findings are consistent with prior reports that abnormal FLAIR signal on MRI is a reliable marker for detecting inner ear injury and can potentially be used as a marker for poor prognosis.
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