Journal
FRONTIERS IN NEUROLOGY
Volume 8, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fneur.2017.00513
Keywords
concussion; traumatic brain injury; systems science; complex; multi-scale; networks; models of injury
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Funding
- US Army Contracting Command, Aberdeen Proving Ground, Natick Contracting Division [W911QY-14-C-0086]
- VA Career Development Award [IK2 BX002712]
- Army Medical Research and Material Command [W81XWH-13-2-0095]
- Veterans Affairs [IK2BX002712] Funding Source: NIH RePORTER
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Traumatic brain injury (TBI) has been called the most complicated disease of the most complex organ of the body and is an increasingly high-profile public health issue. Many patients report long-term impairments following even mild injuries, but reliable criteria for diagnosis and prognosis are lacking. Every clinical trial for TBI treatment to date has failed to demonstrate reliable and safe improvement in outcomes, and the existing body of literature is insufficient to support the creation of a new classification system. Concussion, or mild TBI, is a highly heterogeneous phenomenon, and numerous factors interact dynamically to influence an individual's recovery trajectory. Many of the obstacles faced in research and clinical practice related to TBI and concussion, including observed heterogeneity, arguably stem from the complexity of the condition itself. To improve understanding of this complexity, we review the current state of research through the lens provided by the interdisciplinary field of systems science, which has been increasingly applied to biomedical issues. The review was conducted iteratively, through multiple phases of literature review, expert interviews, and systems diagramming and represents the first phase in an effort to develop systems models of concussion. The primary focus of this work was to examine concepts and ways of thinking about concussion that currently impede research design and block advancements in care of TBI. Results are presented in the form of a multi-scale conceptual framework intended to synthesize knowledge across disciplines, improve research design, and provide a broader, multi-scale model for understanding concussion pathophysiology, classification, and treatment.
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