Study on the Cumulative Effect of Acute Repetitive Traumatic Brain Injury: An Experimental Animal Research
Acute repetitive traumatic brain injury (rTBI) can occur in a pedestrian collision when the head hits the vehicle and the ground twice, as well as in a serial rear-ended collision in a very short period. This study established an animal model of acute rTBI to investigate the cumulative effects of repetitive brain injury under different combinations of impact levels. 117 adult male Sprague–Dawley (SD) rats (190±20g) were divided into control, single impact, and repeated impact groups, with the single impact group was divided into three subgroups of mild, moderate, and severe. And the repeated impact group was divided into nine subgroups by combining mild, moderate, and severe. The kinematic response parameters of the rat’s head were captured by a high-speed camera and acceleration sensors. Modified neurological severity score (mNSS) was performed at 6h after final injury, and the severity of injury was quantified using the abbreviated injury scale (AIS). The results showed that cumulative effects of rTBI were not simply linearly superimposed and there was a clear threshold of injury. As a conclusion, an animal model of acute rTBI was successfully established, and the cumulative effects of acute rTBI were preliminarily discussed, which can provide a reference for the biomechanical mechanism and protection of brain injury in road traffic accidents.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
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Supplemental Notes:
- Abstract reprinted with permission of SAE International.
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Authors:
- Li, Kui
- Qiu, Jinlong
- Wang, Peng
- Zhao, Hui
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Conference:
- WCX SAE World Congress Experience
- Location: Detroit & Online Michigan, United States
- Date: 2022-4-5 to 2022-4-7
- Publication Date: 2022-3-29
Language
- English
Media Info
- Media Type: Web
- Features: References;
- Pagination: pp 1288-1295
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Serial:
- SAE Technical Paper
- Volume: 4
- Issue Number: 4
- Publisher: Society of Automotive Engineers (SAE)
- ISSN: 0148-7191
- EISSN: 2688-3627
- Serial URL: http://papers.sae.org/
Subject/Index Terms
- TRT Terms: Crashes; Head; Injuries; Pedestrian safety
- Subject Areas: Highways; Vehicles and Equipment;
Filing Info
- Accession Number: 01841942
- Record Type: Publication
- Source Agency: SAE International
- Report/Paper Numbers: 2022-01-0865
- Files: TRIS, SAE
- Created Date: Apr 6 2022 2:18PM