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Brain Inj. 2016;30(2):191-8. doi: 10.3109/02699052.2015.1089597. Epub 2015 Nov 30.

Anosmia and olfactory outcomes following paediatric traumatic brain injury.

Bakker K1,2,3, Catroppa C2,3,4,5, Anderson V2,3,4,5.

Author information

1
a Victorian Paediatric Rehabilitation Service , Royal Children's Hospital , Melbourne , Australia.
2
b Murdoch Childrens Research Institute , Melbourne , Australia.
3
c Department of Paediatrics , University of Melbourne , Australia.
4
d Psychology Department , Royal Children's Hospital , Melbourne , Australia.
5
e School of Psychological Sciences , University of Melbourne , Australia.

Abstract

OBJECTIVE:

Research into olfactory dysfunction (OD) following paediatric traumatic brain injury (TBI) is limited. The current study investigated the frequency of OD following paediatric TBI and the relationship between OD and injury characteristics including severity, site of impact and cause of injury. It was hypothesized that children with moderate/severe TBI would demonstrate greater OD than those with mild TBI.

DESIGN/METHOD:

Thirty-seven children aged 8-16 with TBI were recruited to a prospective longitudinal study at a metropolitan children's hospital. Olfactory assessment, using the University of Pennsylvania Smell Identification Test, was completed at 0-3 months post-injury.

RESULTS:

Nineteen per cent of participants demonstrated impaired olfaction, while a small number (5%) were anosmic. A significant relationship between OD and severity of injury was found. No other injury variables demonstrated a significant relationship with olfactory outcomes.

CONCLUSIONS:

OD was relatively common in this paediatric TBI cohort and the hypothesized relationship with severity of injury was supported. It is recommended that information about OD after TBI be routinely provided to children and families. Further research is needed in larger cohorts to support the implementation of routine clinical assessment, understand the relationship between OD and other injury characteristics, determine the functional implications of OD and document recovery trajectories.

KEYWORDS:

Traumatic brain injury; anosmia; child; olfactory dysfunction; smell

PMID:
26618224
DOI:
10.3109/02699052.2015.1089597
[Indexed for MEDLINE]

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