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Title: "I really hope it comes back" - Olfactory impairment following traumatic brain injury: A longitudinal study.
Authors: Drummond, Melanie
Olver, John
Other Authors: Douglas, Jacinta
Keywords: Traumatic Brain Injury
Olfactory Impairment
Acquired Brain Injury
Predictive Factors
Post-Traumatic Amnesia
University of Pennsylvania Smell Identification Test
Natural Progression, Olfactory Impairment
Consquences, Olfactory Impairment
Rehabilitation, Mental Health and Chronic Pain Clinical Institute, Epworth HealthCare, Victoria, Australia
Epworth Monash Rehabilitation Medicine Unit, Epworth Hospital, Richmond, Victoria
Issue Date: Jul-2017
Publisher: IOS Press
Citation: NeuroRehabilitation. 2017;41(1):241-248
Abstract: BACKGROUND: Olfactory impairment (OI) can present in up to 66% of all individuals following traumatic brain injury (TBI) and can have significant implications for everyday life. OBJECTIVE: To investigate the predictive factors, natural progression and consequences of OI following TBI in individuals 12 months post injury. METHODS: In this prospective longitudinal study, 37 adults (28 males, 9 females), mean age 42.3 years (SD 19.4), with predominately severe TBI (mean length of posttraumatic amnesia (PTA) 28.6 days, SD 22.6) were assessed using the University of Pennsylvania Smell Identification Test (UPSIT). Each participant also participated in an open ended interview to allow exploration of their experience of having OI. RESULTS: Thirty (83.33%) of the participants demonstrated persisting OI at 12 months. Nineteen of these participants demonstrated no change in their OI severity category and 4 produced a poorer performance. Thirteen participants (36.11%) demonstrated some recovery with 6 of these performing within the 'normal' range for age andgender. CONCLUSIONS: OI is an enduring impairment for a substantial proportion of individuals who experience it following severe TBI. It impacts a range of everyday activities, regardless of its severity, and requires comprehensive management during rehabilitation.
DOI: 10.3233/NRE-171477
PubMed URL:
ISSN: 1053-8135
Journal Title: NeuroRehabilitation
Type: Journal Article
Affiliated Organisations: College of Science, Health and Engineering, La Trobe University, VIC, Australia.
NHMRC Clinical Centre of Research Excellence in Brain Recovery, VIC, Australia.
Type of Clinical Study or Trial: Prospective Study
Appears in Collections:Neurosciences

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