Portal hypertension in dogs
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | |
Tipo de documento: | Artigo de conferência |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.revista.dmv.ufrpe.br/index.php/rdmv/article/view/136 http://hdl.handle.net/11449/117764 |
Resumo: | Portal hypertension (PH) is the pathological increase in portal vein pressure above normal limits. Two variables control the pressure in the portal system: the resistance to blood flow and blood flow volume in the portal system. If one these variables changes, PH may develop. Classification: Pre-hepatic (e. g. compression of the portal vein), intrahepatic (e. g. chronic hepatitis and cirrhosis) or post-hepatic (e. g. right heart failure). The invasive methods (intravenous catheter) were replaced by an indirect method of diagnosis: Doppler Ultrasound. This technique does not measure portal pressure, but indirectly allows the diagnosis of PH. Average speed of portal flow decrease (<10 cm/s) and hepatofugal flow have been reported in cirrhotic dogs with PH. Currently, the focus of the ultrasound is the detection of acquired collateral portal circulation (ACPC), closely correlated with hepatic encephalopathy. The characterization of these vessels is essential to differentiate them from congenital shunts. They are usually multiple vessels, small and tortuous, with turbulent flow, near to the kidneys, and/or a single and larger vessel, draining into the left renal vein (dilated gonadal vein). Gastric, esophageal and mesenteric varices may occur. After identifying the PH, it is important to determine its origin in order to treat the underlying disease. B-Mode Ultrasound and Doppler are the best choices in cases of suspected PH, because they may recognize not just the hypertension, but also its complications and origin. |
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Portal hypertension in dogshemodynamicportal veinsyndromediagnosisultrasoundPortal hypertension (PH) is the pathological increase in portal vein pressure above normal limits. Two variables control the pressure in the portal system: the resistance to blood flow and blood flow volume in the portal system. If one these variables changes, PH may develop. Classification: Pre-hepatic (e. g. compression of the portal vein), intrahepatic (e. g. chronic hepatitis and cirrhosis) or post-hepatic (e. g. right heart failure). The invasive methods (intravenous catheter) were replaced by an indirect method of diagnosis: Doppler Ultrasound. This technique does not measure portal pressure, but indirectly allows the diagnosis of PH. Average speed of portal flow decrease (<10 cm/s) and hepatofugal flow have been reported in cirrhotic dogs with PH. Currently, the focus of the ultrasound is the detection of acquired collateral portal circulation (ACPC), closely correlated with hepatic encephalopathy. The characterization of these vessels is essential to differentiate them from congenital shunts. They are usually multiple vessels, small and tortuous, with turbulent flow, near to the kidneys, and/or a single and larger vessel, draining into the left renal vein (dilated gonadal vein). Gastric, esophageal and mesenteric varices may occur. After identifying the PH, it is important to determine its origin in order to treat the underlying disease. B-Mode Ultrasound and Doppler are the best choices in cases of suspected PH, because they may recognize not just the hypertension, but also its complications and origin.Univ Estadual Paulista Julio de Mesquita Filho FM, UNESP, Campus De Botucatu, SP, BrazilUniv Estadual Paulista Julio de Mesquita Filho FM, UNESP, Campus De Botucatu, SP, BrazilUniv Federal Rural PernambucoUniversidade Estadual Paulista (Unesp)Sartor, Raquel [UNESP]Mamprim, Maria Jaqueline [UNESP]2015-03-18T15:56:53Z2015-03-18T15:56:53Z2011-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject66-68application/pdfhttp://www.revista.dmv.ufrpe.br/index.php/rdmv/article/view/136Medicina Veterinaria-recife. Recife Pe: Univ Federal Rural Pernambuco, v. 5, n. 4, p. 66-68, 2011.1809-4678http://hdl.handle.net/11449/117764WOS:000209050900011WOS000209050900011.pdf8854318602850671Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporMedicina Veterinaria-recife0,102info:eu-repo/semantics/openAccess2023-10-03T06:04:36Zoai:repositorio.unesp.br:11449/117764Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-03T06:04:36Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Portal hypertension in dogs |
title |
Portal hypertension in dogs |
spellingShingle |
Portal hypertension in dogs Sartor, Raquel [UNESP] hemodynamic portal vein syndrome diagnosis ultrasound |
title_short |
Portal hypertension in dogs |
title_full |
Portal hypertension in dogs |
title_fullStr |
Portal hypertension in dogs |
title_full_unstemmed |
Portal hypertension in dogs |
title_sort |
Portal hypertension in dogs |
author |
Sartor, Raquel [UNESP] |
author_facet |
Sartor, Raquel [UNESP] Mamprim, Maria Jaqueline [UNESP] |
author_role |
author |
author2 |
Mamprim, Maria Jaqueline [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Sartor, Raquel [UNESP] Mamprim, Maria Jaqueline [UNESP] |
dc.subject.por.fl_str_mv |
hemodynamic portal vein syndrome diagnosis ultrasound |
topic |
hemodynamic portal vein syndrome diagnosis ultrasound |
description |
Portal hypertension (PH) is the pathological increase in portal vein pressure above normal limits. Two variables control the pressure in the portal system: the resistance to blood flow and blood flow volume in the portal system. If one these variables changes, PH may develop. Classification: Pre-hepatic (e. g. compression of the portal vein), intrahepatic (e. g. chronic hepatitis and cirrhosis) or post-hepatic (e. g. right heart failure). The invasive methods (intravenous catheter) were replaced by an indirect method of diagnosis: Doppler Ultrasound. This technique does not measure portal pressure, but indirectly allows the diagnosis of PH. Average speed of portal flow decrease (<10 cm/s) and hepatofugal flow have been reported in cirrhotic dogs with PH. Currently, the focus of the ultrasound is the detection of acquired collateral portal circulation (ACPC), closely correlated with hepatic encephalopathy. The characterization of these vessels is essential to differentiate them from congenital shunts. They are usually multiple vessels, small and tortuous, with turbulent flow, near to the kidneys, and/or a single and larger vessel, draining into the left renal vein (dilated gonadal vein). Gastric, esophageal and mesenteric varices may occur. After identifying the PH, it is important to determine its origin in order to treat the underlying disease. B-Mode Ultrasound and Doppler are the best choices in cases of suspected PH, because they may recognize not just the hypertension, but also its complications and origin. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-12-01 2015-03-18T15:56:53Z 2015-03-18T15:56:53Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.revista.dmv.ufrpe.br/index.php/rdmv/article/view/136 Medicina Veterinaria-recife. Recife Pe: Univ Federal Rural Pernambuco, v. 5, n. 4, p. 66-68, 2011. 1809-4678 http://hdl.handle.net/11449/117764 WOS:000209050900011 WOS000209050900011.pdf 8854318602850671 |
url |
http://www.revista.dmv.ufrpe.br/index.php/rdmv/article/view/136 http://hdl.handle.net/11449/117764 |
identifier_str_mv |
Medicina Veterinaria-recife. Recife Pe: Univ Federal Rural Pernambuco, v. 5, n. 4, p. 66-68, 2011. 1809-4678 WOS:000209050900011 WOS000209050900011.pdf 8854318602850671 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Medicina Veterinaria-recife 0,102 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
66-68 application/pdf |
dc.publisher.none.fl_str_mv |
Univ Federal Rural Pernambuco |
publisher.none.fl_str_mv |
Univ Federal Rural Pernambuco |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1799964416888799232 |