Traumatic brain ischemia during neuro intensive care: myth rather than fact
Autor(a) principal: | |
---|---|
Data de Publicação: | 2001 |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Arquivos de neuro-psiquiatria (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2001000400001 |
Resumo: | In non-missile severe acute brain trauma, brain ischemia was a frequent finding in cadavers. Studies during neuro intensive care, however, have failed to disclose brain ischemia under most circumstances, except when cerebral hemodynamic and metabolic parameters have been misinterpreted, or when cerebral blood flow (CBF) alone has been addressed in a biased fashion, without mandatory metabolic data. Indeed, comprehensive and unbiased studies focusing on global cerebral metabolic activity have invariably revealed a condition of normal coupling between reduced CBF and oxygen consumption in the early postinjury hours, which is then followed by a prolonged, sustained pattern of relative cerebral hyperperfusion (the opposite of ischemia). Accordingly, traumatic brain ischemia during intensive care represents myth rather than fact. |
id |
ABNEURO-1_5476999b0b4b20f60070aa49e8ce385b |
---|---|
oai_identifier_str |
oai:scielo:S0004-282X2001000400001 |
network_acronym_str |
ABNEURO-1 |
network_name_str |
Arquivos de neuro-psiquiatria (Online) |
repository_id_str |
|
spelling |
Traumatic brain ischemia during neuro intensive care: myth rather than facthead injurycerebral metabolismcerebral blood flowbrain ischemiaIn non-missile severe acute brain trauma, brain ischemia was a frequent finding in cadavers. Studies during neuro intensive care, however, have failed to disclose brain ischemia under most circumstances, except when cerebral hemodynamic and metabolic parameters have been misinterpreted, or when cerebral blood flow (CBF) alone has been addressed in a biased fashion, without mandatory metabolic data. Indeed, comprehensive and unbiased studies focusing on global cerebral metabolic activity have invariably revealed a condition of normal coupling between reduced CBF and oxygen consumption in the early postinjury hours, which is then followed by a prolonged, sustained pattern of relative cerebral hyperperfusion (the opposite of ischemia). Accordingly, traumatic brain ischemia during intensive care represents myth rather than fact.Academia Brasileira de Neurologia - ABNEURO2001-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2001000400001Arquivos de Neuro-Psiquiatria v.59 n.3A 2001reponame:Arquivos de neuro-psiquiatria (Online)instname:Academia Brasileira de Neurologiainstacron:ABNEURO10.1590/S0004-282X2001000400001info:eu-repo/semantics/openAccessCruz,Julioeng2001-10-04T00:00:00Zoai:scielo:S0004-282X2001000400001Revistahttp://www.scielo.br/anphttps://old.scielo.br/oai/scielo-oai.php||revista.arquivos@abneuro.org1678-42270004-282Xopendoar:2001-10-04T00:00Arquivos de neuro-psiquiatria (Online) - Academia Brasileira de Neurologiafalse |
dc.title.none.fl_str_mv |
Traumatic brain ischemia during neuro intensive care: myth rather than fact |
title |
Traumatic brain ischemia during neuro intensive care: myth rather than fact |
spellingShingle |
Traumatic brain ischemia during neuro intensive care: myth rather than fact Cruz,Julio head injury cerebral metabolism cerebral blood flow brain ischemia |
title_short |
Traumatic brain ischemia during neuro intensive care: myth rather than fact |
title_full |
Traumatic brain ischemia during neuro intensive care: myth rather than fact |
title_fullStr |
Traumatic brain ischemia during neuro intensive care: myth rather than fact |
title_full_unstemmed |
Traumatic brain ischemia during neuro intensive care: myth rather than fact |
title_sort |
Traumatic brain ischemia during neuro intensive care: myth rather than fact |
author |
Cruz,Julio |
author_facet |
Cruz,Julio |
author_role |
author |
dc.contributor.author.fl_str_mv |
Cruz,Julio |
dc.subject.por.fl_str_mv |
head injury cerebral metabolism cerebral blood flow brain ischemia |
topic |
head injury cerebral metabolism cerebral blood flow brain ischemia |
description |
In non-missile severe acute brain trauma, brain ischemia was a frequent finding in cadavers. Studies during neuro intensive care, however, have failed to disclose brain ischemia under most circumstances, except when cerebral hemodynamic and metabolic parameters have been misinterpreted, or when cerebral blood flow (CBF) alone has been addressed in a biased fashion, without mandatory metabolic data. Indeed, comprehensive and unbiased studies focusing on global cerebral metabolic activity have invariably revealed a condition of normal coupling between reduced CBF and oxygen consumption in the early postinjury hours, which is then followed by a prolonged, sustained pattern of relative cerebral hyperperfusion (the opposite of ischemia). Accordingly, traumatic brain ischemia during intensive care represents myth rather than fact. |
publishDate |
2001 |
dc.date.none.fl_str_mv |
2001-09-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2001000400001 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2001000400001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0004-282X2001000400001 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Academia Brasileira de Neurologia - ABNEURO |
publisher.none.fl_str_mv |
Academia Brasileira de Neurologia - ABNEURO |
dc.source.none.fl_str_mv |
Arquivos de Neuro-Psiquiatria v.59 n.3A 2001 reponame:Arquivos de neuro-psiquiatria (Online) instname:Academia Brasileira de Neurologia instacron:ABNEURO |
instname_str |
Academia Brasileira de Neurologia |
instacron_str |
ABNEURO |
institution |
ABNEURO |
reponame_str |
Arquivos de neuro-psiquiatria (Online) |
collection |
Arquivos de neuro-psiquiatria (Online) |
repository.name.fl_str_mv |
Arquivos de neuro-psiquiatria (Online) - Academia Brasileira de Neurologia |
repository.mail.fl_str_mv |
||revista.arquivos@abneuro.org |
_version_ |
1754212753437884416 |