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Traumatic Brain Injury - Cognitive Impairment and PTSD

Dr Alexandra Walker

Traumatic Brain Injury (TBI) is the leading cause of long-term disability in children and young adults across the world, with an incidence estimated to range from 100 to 700 per 100,000 people per year. Common causes of TBI are motor vehicle accidents, assaults and falls. Among hospital presentations with TBI; mild TBI or concussion is much more common than severe TBI, with 80-90% being TBI of mild severity. Recovery and long-term cognitive outcome after TBI is closely related to injury characteristics and injury severity - most people recover well from mild TBI, whereas severe TBI may lead to permanent cognitive difficulties. This presentation provides a definition of TBI, an explanation of the meaning of severity in the context of TBI and the characteristics that determine different levels of injury severity. Short-term sequelae and long-term outcome after TBI are outlined. 

STARTTS Clinical Master Class Evening
Recorded 23rd July 2014

Alexandra Walker
Alexandra Walker
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Dr Alexandra Walker

Dr Alexandra Walker is a Senior Clinical Neuropsychologist and Clinical Psychologist who works in both public health and private practice. She is head of the Neuropsychology Unit at Westmead Hospital and Senior Clinical Neuropsychologist at the Brain Injury Rehabilitation Service at Westmead Hospital. She has over 20 years experience in all aspects of adult neuropsychology, including assessment of cognitive impairment in traumatic brain injury, stroke, neuropsychiatry and dementia. Dr Walker specialises in the area of Traumatic Brain Injury (TBI). Clinically, her work focuses on neuropsychological assessment, and the provision of opinions on capacity determinations and recommendations for individuals and their treating team to maximise cognitive function. She is a member of the working group for the NSW Motor Accidents Authority guidelines for the neuropsychological assessment after TBI. Her peer reviewed journal publications include papers on neuropsychological assessment after TBI, consideration of culturally and linguistically diverse factors in neuropsychological assessment and treatment of anger management difficulties after TBI. Dr Walker is an Honorary Associate of Macquarie University, and is involved in the teaching and supervision of postgraduate neuropsychology students.

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