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"Boicu, Daniel George"
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Trauma-Associated Tinnitus and Hearing Loss: A Comprehensive Narrative Review of Prevalence, Risk Factors, and Clinical Outcomes
by
Bitere-Popa, Oana Roxana
,
Boicu, Daniel George
,
Olariu, Raluca
in
acoustic trauma
,
Acoustics
,
Blast Injuries - complications
2026
: Trauma-associated auditory dysfunction, encompassing tinnitus and hearing loss, represents a frequent yet underrecognized sequela of acoustic overexposure, blast injury, and head trauma. Despite increasing clinical awareness, the published literature exhibits substantial heterogeneity in reported prevalence estimates and recovery outcomes across different injury mechanisms. This narrative review aims to synthesize available evidence on the prevalence, clinical characteristics, recovery patterns, and prognostic factors of tinnitus and hearing loss following traumatic injury, with a particular focus on comparing outcomes across distinct trauma mechanisms and evaluating the impact of early intervention.
: A comprehensive literature search was conducted in PubMed, Embase, Scopus, and Web of Science for studies published between January 2010 and December 2025. The search strategy combined terms related to traumatic injury (e.g., \"acoustic trauma,\" \"blast injury,\" \"traumatic brain injury,\" \"head trauma\") with terms related to auditory dysfunction (e.g., \"tinnitus,\" \"hearing loss,\" \"auditory dysfunction\"). Eligible studies included observational studies (cohort, cross-sectional, case-control) reporting original data on tinnitus and/or hearing loss prevalence, recovery outcomes, or prognostic factors in adult or mixed populations exposed to traumatic injury. A narrative synthesis was organized thematically around the key research questions.
: The available evidence consistently indicates that tinnitus and hearing loss are frequent consequences of blast injury, acute acoustic trauma, and traumatic brain injury, although reported prevalence estimates vary considerably across studies due to differences in populations, injury mechanisms, and diagnostic criteria. Blast injury is associated with mixed hearing loss (conductive and sensorineural components), while acute acoustic trauma typically causes sensorineural hearing loss, often with a characteristic high-frequency notch. Traumatic brain injury can lead to central auditory processing deficits even when pure-tone thresholds are normal. Recovery is variable and often incomplete; tympanic membrane perforations frequently heal spontaneously, but sensorineural components often persist. Early treatment (within days to two weeks) is associated with better recovery outcomes.
: Trauma-associated tinnitus and hearing loss are highly prevalent and frequently result in persistent disability. The strong association between early treatment and improved recovery outcomes supports the implementation of prompt audiological evaluation and intervention following traumatic injury. These findings underscore the need for routine audiological screening in at-risk populations and for continued research into preventive strategies, standardised assessment protocols, and optimised treatment regimens.
Journal Article