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Controlled Cortical Impact Model for Traumatic Brain Injury
Published on: August 5, 2014
At-a-glance - Traumatic brain injury management in Canada: changing patterns of care
Deepa P Rao1, Steven McFaull1, Wendy Thompson1
1Public Health Agency of Canada, Ottawa, Ontario, Canada.
Introduction:
With growing awareness about traumatic brain injuries (TBI), there is limited information about population level patterns of TBI care in Canada.
Methods:
We examined data from the Canadian Community Health Survey (years 2004, 2009, and 2014) among all respondents ages 12 years and older. TBI management characteristics examined included access to care within 48 hours of injury, point of care, hospital admission, and follow-up.
Results:
We observed that many Canadians sought care within 48 hours of their injury, with no changes over time. We found a significant decline in the proportion of Canadians opting to visit an emergency department (p = 0.03, all ages), and a significant increase in youth opting to visit a doctor's office (p < 0.01).
Conclusion:
TBIs are an important and growing health concern in Canada. Care for such injuries appears to have shifted towards the use of health care professionals outside the hospital environment, including primary care doctors.
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Consider a gas confined to a cylinder fitted with a movable piston at one end. If the gas expands from volume V1 to volume V2, it exerts a force on the piston, such that the piston moves by a distance dr.
The work done by the gas on the piston can be expressed as

