ANATOMICAL VARIATIONS OF THE VERTEBRAL ARTERY AND THEIR IMPLICATIONS
Autor(a) principal: | |
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Data de Publicação: | 2024 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Environmental Smoke |
Texto Completo: | https://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/265 |
Resumo: | The Vertebral arteries correspond to a pair of vessels that originate from the superior branch of the 1st portion of the A. Subclavia. In general, they present general anatomical variations regarding the length and diameter of the lumen, with the left being larger than the right. More extreme variations, such as the absence of one of the arteries, due to agenesis or involution, are generally related to craniovertebral defects. The objective of this work was to evaluate the anatomical variations found in the vertebral arteries and to discuss their clinical implications. In the construction of this study, a descriptive research, of the RIL type, was carried out, fulfilling all the stages of development. The search resulted in 23 articles. After reading, the corpus was composed of 12 articles, whose potential content was dedicated to investigating the type of anatomical variation of the vertebral artery and its implications and harms in the health of the carriers. Symmetrical vertebral arteries are found in about 26% of individuals. Marked differences in the diameter of the arteries, called Vertebral Artery Dominance (VAD) result in a significant decrease in the blood flow velocity of the artery and an increase in the resistance index (RI). The incidence of infarction in the posterior region of the brain is significantly higher in individuals with VAD. Infarctions occurred more frequently on the side of the non-dominant vertebral artery, probably due to non-mixing of Aa blood. vertebral arteries within the A. basilar, which run separately and with a central zone where flow is absent, called the "dead spot". Changes in normal blood flow were tested to determine their correlations with sites of thrombosis and atherosclerosis in humans. The agenesis of some branches of A. vertebral is also identified as an important factor for the occurrence of strokes in the posterior region of the brain. |
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ANATOMICAL VARIATIONS OF THE VERTEBRAL ARTERY AND THEIR IMPLICATIONSVertebral ArteriesStrokeResistance IndexThe Vertebral arteries correspond to a pair of vessels that originate from the superior branch of the 1st portion of the A. Subclavia. In general, they present general anatomical variations regarding the length and diameter of the lumen, with the left being larger than the right. More extreme variations, such as the absence of one of the arteries, due to agenesis or involution, are generally related to craniovertebral defects. The objective of this work was to evaluate the anatomical variations found in the vertebral arteries and to discuss their clinical implications. In the construction of this study, a descriptive research, of the RIL type, was carried out, fulfilling all the stages of development. The search resulted in 23 articles. After reading, the corpus was composed of 12 articles, whose potential content was dedicated to investigating the type of anatomical variation of the vertebral artery and its implications and harms in the health of the carriers. Symmetrical vertebral arteries are found in about 26% of individuals. Marked differences in the diameter of the arteries, called Vertebral Artery Dominance (VAD) result in a significant decrease in the blood flow velocity of the artery and an increase in the resistance index (RI). The incidence of infarction in the posterior region of the brain is significantly higher in individuals with VAD. Infarctions occurred more frequently on the side of the non-dominant vertebral artery, probably due to non-mixing of Aa blood. vertebral arteries within the A. basilar, which run separately and with a central zone where flow is absent, called the "dead spot". Changes in normal blood flow were tested to determine their correlations with sites of thrombosis and atherosclerosis in humans. The agenesis of some branches of A. vertebral is also identified as an important factor for the occurrence of strokes in the posterior region of the brain.Environmental Smoke Institute2024-04-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdftext/htmlhttps://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/26510.32435/envsmoke-2024-0005Environmental Smoke; Vol. 7 (2024); 01-06Environmental Smoke; v. 7 (2024); 01-062595-5527reponame:Environmental Smokeinstname:Environmental Smokeinstacron:ESenghttps://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/265/297https://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/265/298Copyright (c) 2024 Gil Dutra Furtado, Marcos Antônio Jerônimo Costa, Sérgio Eduardo Jerônimo Costa, Felipe Eduardo da Silva Sobral, Catarina Maria Andrade Figueiredo Guimarães Maia, Janyeliton Alencar de Oliveirahttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessDutra Furtado, GilAntônio Jerônimo Costa, MarcosEduardo Jerônimo Costa, SérgioEduardo da Silva Sobral, FelipeMaria Andrade Figueiredo Guimarães Maia, CatarinaAlencar de Oliveira, Janyeliton2024-04-17T21:04:50Zoai:ojs.pkp.sfu.ca:article/265Revistahttps://environmentalsmoke.com.br/index.php/EnvSmokePRIhttps://environmentalsmoke.com.br/index.php/EnvSmoke/oaismoke@environmentalsmoke.com.br2595-55272595-5527opendoar:2024-04-17T21:04:50Environmental Smoke - Environmental Smokefalse |
dc.title.none.fl_str_mv |
ANATOMICAL VARIATIONS OF THE VERTEBRAL ARTERY AND THEIR IMPLICATIONS |
title |
ANATOMICAL VARIATIONS OF THE VERTEBRAL ARTERY AND THEIR IMPLICATIONS |
spellingShingle |
ANATOMICAL VARIATIONS OF THE VERTEBRAL ARTERY AND THEIR IMPLICATIONS Dutra Furtado, Gil Vertebral Arteries Stroke Resistance Index |
title_short |
ANATOMICAL VARIATIONS OF THE VERTEBRAL ARTERY AND THEIR IMPLICATIONS |
title_full |
ANATOMICAL VARIATIONS OF THE VERTEBRAL ARTERY AND THEIR IMPLICATIONS |
title_fullStr |
ANATOMICAL VARIATIONS OF THE VERTEBRAL ARTERY AND THEIR IMPLICATIONS |
title_full_unstemmed |
ANATOMICAL VARIATIONS OF THE VERTEBRAL ARTERY AND THEIR IMPLICATIONS |
title_sort |
ANATOMICAL VARIATIONS OF THE VERTEBRAL ARTERY AND THEIR IMPLICATIONS |
author |
Dutra Furtado, Gil |
author_facet |
Dutra Furtado, Gil Antônio Jerônimo Costa, Marcos Eduardo Jerônimo Costa, Sérgio Eduardo da Silva Sobral, Felipe Maria Andrade Figueiredo Guimarães Maia, Catarina Alencar de Oliveira, Janyeliton |
author_role |
author |
author2 |
Antônio Jerônimo Costa, Marcos Eduardo Jerônimo Costa, Sérgio Eduardo da Silva Sobral, Felipe Maria Andrade Figueiredo Guimarães Maia, Catarina Alencar de Oliveira, Janyeliton |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Dutra Furtado, Gil Antônio Jerônimo Costa, Marcos Eduardo Jerônimo Costa, Sérgio Eduardo da Silva Sobral, Felipe Maria Andrade Figueiredo Guimarães Maia, Catarina Alencar de Oliveira, Janyeliton |
dc.subject.por.fl_str_mv |
Vertebral Arteries Stroke Resistance Index |
topic |
Vertebral Arteries Stroke Resistance Index |
description |
The Vertebral arteries correspond to a pair of vessels that originate from the superior branch of the 1st portion of the A. Subclavia. In general, they present general anatomical variations regarding the length and diameter of the lumen, with the left being larger than the right. More extreme variations, such as the absence of one of the arteries, due to agenesis or involution, are generally related to craniovertebral defects. The objective of this work was to evaluate the anatomical variations found in the vertebral arteries and to discuss their clinical implications. In the construction of this study, a descriptive research, of the RIL type, was carried out, fulfilling all the stages of development. The search resulted in 23 articles. After reading, the corpus was composed of 12 articles, whose potential content was dedicated to investigating the type of anatomical variation of the vertebral artery and its implications and harms in the health of the carriers. Symmetrical vertebral arteries are found in about 26% of individuals. Marked differences in the diameter of the arteries, called Vertebral Artery Dominance (VAD) result in a significant decrease in the blood flow velocity of the artery and an increase in the resistance index (RI). The incidence of infarction in the posterior region of the brain is significantly higher in individuals with VAD. Infarctions occurred more frequently on the side of the non-dominant vertebral artery, probably due to non-mixing of Aa blood. vertebral arteries within the A. basilar, which run separately and with a central zone where flow is absent, called the "dead spot". Changes in normal blood flow were tested to determine their correlations with sites of thrombosis and atherosclerosis in humans. The agenesis of some branches of A. vertebral is also identified as an important factor for the occurrence of strokes in the posterior region of the brain. |
publishDate |
2024 |
dc.date.none.fl_str_mv |
2024-04-11 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/265 10.32435/envsmoke-2024-0005 |
url |
https://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/265 |
identifier_str_mv |
10.32435/envsmoke-2024-0005 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/265/297 https://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/265/298 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf text/html |
dc.publisher.none.fl_str_mv |
Environmental Smoke Institute |
publisher.none.fl_str_mv |
Environmental Smoke Institute |
dc.source.none.fl_str_mv |
Environmental Smoke; Vol. 7 (2024); 01-06 Environmental Smoke; v. 7 (2024); 01-06 2595-5527 reponame:Environmental Smoke instname:Environmental Smoke instacron:ES |
instname_str |
Environmental Smoke |
instacron_str |
ES |
institution |
ES |
reponame_str |
Environmental Smoke |
collection |
Environmental Smoke |
repository.name.fl_str_mv |
Environmental Smoke - Environmental Smoke |
repository.mail.fl_str_mv |
smoke@environmentalsmoke.com.br |
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1797051134562533376 |