Occlusive hyperemia and normal pressure break through- physiopathology and management
Rev. chil. neurocir
;
38(1): 32-35, jun. 2012. ilus
Article
in English
| LILACS
| ID: lil-716511
ABSTRACT
Immediately following surgical excision of a cerebral AVM, even normal brain tissue surrounding the lesion is subject to hemorrhage, a phenomenon termed normal perfusion pressure breakthrough (NPPB) syndrome or occlusive hyperemia. According to this theory, arteries supplying cerebral AVMs become dilated and lose their capacity to dilate or constrict to autoregulate pressure. Acutely after removal of a cerebral AVM, excessive blood pressure in these arterial feeders can cause normal brain tissue to bleed. However, this theory still remains controversial.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Brain Edema
/
Intracranial Pressure
/
Intracranial Arteriovenous Malformations
/
Cerebral Hemorrhage
/
Hyperemia
Limits:
Humans
Language:
English
Journal:
Rev. chil. neurocir
Journal subject:
Neurosurgery
Year:
2012
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Federal University of Paraná/BR
/
Santa casa de Londrina/BR
/
Federal Unieversity of Rio Grande do Sul/BR
/
Federal University of São Paulo/BR
/
Mario Gatti Hospital/BR
/
Pathos Laboratory/BR
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