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| pubmed-article:9046306 | lifeskim:mentions | umls-concept:C0086418 | lld:lifeskim |
| pubmed-article:9046306 | lifeskim:mentions | umls-concept:C0037929 | lld:lifeskim |
| pubmed-article:9046306 | lifeskim:mentions | umls-concept:C1801960 | lld:lifeskim |
| pubmed-article:9046306 | lifeskim:mentions | umls-concept:C0277785 | lld:lifeskim |
| pubmed-article:9046306 | lifeskim:mentions | umls-concept:C0441712 | lld:lifeskim |
| pubmed-article:9046306 | pubmed:issue | 3 | lld:pubmed |
| pubmed-article:9046306 | pubmed:dateCreated | 1997-3-24 | lld:pubmed |
| pubmed-article:9046306 | pubmed:abstractText | Vascular injury plays an important role in the primary and secondary injury mechanisms that cause damage to the acutely traumatized spinal cord. To understand the pathophysiology of human spinal cord injury, the authors investigated the vascular system in three uninjured human spinal cords using silicone rubber microangiography and analyzed the histological findings related to vascular injury in nine acutely traumatized human spinal cords obtained at autopsy. The interval from spinal cord injury to death ranged from 20 minutes to 9 months. The microangiograms of the uninjured human cervical cords demonstrated new information about the sulcal arterial system and the pial arteries. The centrifugal sulcal arterial system was found to supply all of the anterior gray matter, the anterior half of the posterior gray matter, approximately the inner half of the anterior and lateral white columns, and the anterior half of the posterior white columns. Traumatized spinal cord specimens in the acute stage (3-5 days postinjury) showed severe hemorrhages predominantly in the gray matter, but also in the white matter. The white matter surrounding the hemorrhagic gray matter showed a variety of lesions, including decreased staining, disrupted myelin, and axonal and periaxonal swelling. The white matter lesions extended far from the injury site, especially in the posterior columns. There was no evidence of complete occlusion of any of the larger arteries, including the anterior and posterior spinal arteries and the sulcal arteries. However, occluded intramedullary veins were identified in the degenerated posterior white columns. In the chronic stage (3-9 months postinjury), the injured segments showed major tissue loss with large cavitations, whereas both rostral and caudal remote sites showed well-demarcated necrotic areas indicative of infarction mainly in the posterior white columns. Obstruction of small intramedullary arteries and veins by the initial mechanical stress or secondary injury mechanisms most likely produced these extensive white matter lesions. Our studies implicate damage to the anterior sulcal arteries in causing the hemorrhagic necrosis and subsequent central myelomalacia at the injury site in acute spinal cord injury in humans. | lld:pubmed |
| pubmed-article:9046306 | pubmed:commentsCorrections | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:9046306 | pubmed:language | eng | lld:pubmed |
| pubmed-article:9046306 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:9046306 | pubmed:citationSubset | AIM | lld:pubmed |
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| pubmed-article:9046306 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:9046306 | pubmed:month | Mar | lld:pubmed |
| pubmed-article:9046306 | pubmed:issn | 0022-3085 | lld:pubmed |
| pubmed-article:9046306 | pubmed:author | pubmed-author:TatorC HCH | lld:pubmed |
| pubmed-article:9046306 | pubmed:author | pubmed-author:KoyanagiII | lld:pubmed |
| pubmed-article:9046306 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:9046306 | pubmed:volume | 86 | lld:pubmed |
| pubmed-article:9046306 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:9046306 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:9046306 | pubmed:pagination | 483-92 | lld:pubmed |
| pubmed-article:9046306 | pubmed:dateRevised | 2006-11-15 | lld:pubmed |
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| pubmed-article:9046306 | pubmed:year | 1997 | lld:pubmed |
| pubmed-article:9046306 | pubmed:articleTitle | Vascular mechanisms in the pathophysiology of human spinal cord injury. | lld:pubmed |
| pubmed-article:9046306 | pubmed:affiliation | Canadian Paraplegic Association Spinal Cord Injury Research Laboratory, Toronto Hospital, Ontario, Canada. | lld:pubmed |
| pubmed-article:9046306 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:9046306 | pubmed:publicationType | Research Support, Non-U.S. Gov't | lld:pubmed |
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