Origin of the porta vein: anatomy study

Introduction: classically the portal vein originates from the confluence of the superior mesenteric vein and splenic mesenteric trunk, last one conformed by the splenic and inferior mesenteric veins. Its conformation and main tributaries does not escape from presenting anatomical variations, which t...

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Autores principales: Mansilla, Sofía, Mansilla, Alejandra, Pouy, Andrés, Garretano, Alejandra, Cerchiari, Emilia, Armand Ugón, Gustavo
Formato: Artículo revista
Lenguaje:Español
Publicado: Asociación Argentina de Anatomía Clínica (Argentine Association of Clinical Anatomy) 2020
Materias:
Veins
Variations
Afluents
Venas
Variaciones
Afluentes
Acceso en línea:https://revistas.unc.edu.ar/index.php/anatclinar/article/view/27560
Aporte de:
Revista Argentina de Anatomía Clínica de Universidad Nacional de Córdoba
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institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-321
container_title_str Revista Argentina de Anatomía Clínica
language Español
format Artículo revista
topic Veins
Variations
Afluents
Venas
Variaciones
Afluentes
spellingShingle Veins
Variations
Afluents
Venas
Variaciones
Afluentes
Mansilla, Sofía
Mansilla, Alejandra
Pouy, Andrés
Garretano, Alejandra
Cerchiari, Emilia
Armand Ugón, Gustavo
Origin of the porta vein: anatomy study
topic_facet Veins
Variations
Afluents
Venas
Variaciones
Afluentes
author Mansilla, Sofía
Mansilla, Alejandra
Pouy, Andrés
Garretano, Alejandra
Cerchiari, Emilia
Armand Ugón, Gustavo
author_facet Mansilla, Sofía
Mansilla, Alejandra
Pouy, Andrés
Garretano, Alejandra
Cerchiari, Emilia
Armand Ugón, Gustavo
author_sort Mansilla, Sofía
title Origin of the porta vein: anatomy study
title_short Origin of the porta vein: anatomy study
title_full Origin of the porta vein: anatomy study
title_fullStr Origin of the porta vein: anatomy study
title_full_unstemmed Origin of the porta vein: anatomy study
title_sort origin of the porta vein: anatomy study
description Introduction: classically the portal vein originates from the confluence of the superior mesenteric vein and splenic mesenteric trunk, last one conformed by the splenic and inferior mesenteric veins. Its conformation and main tributaries does not escape from presenting anatomical variations, which the surgeon must know and anticipate, at the time of approaching the pancreatic duodenum massif in order to avoid catastrophic consequences. The objective is the study of the conformation, dimensions and spatial arrangement of the origin of the portal vein, and its main tributaries. Materials and method: 50 cadavers were. Portal vein origin, caliber and its tributaries were recorded. Flaring angles and vertebral projection level. Results: three types of origin were distinguished. Type I was recorded in 78% of cases, type II in 18% and type III in 4%. The calibers were: portal vein 16.12 mm, superior mesenteric 11.77 mm, splenic 9.34 mm, inferior mesenteric 5.03 mm and splenomesaraic trunk 10.44 mm. The latter reached a length of 20.26 mm. The angles were: portal angle - splenomesenteric trunk 124.18 °, upper mesenteric angle - splenomesenteric trunk 101.92 ° and lower mesenteric angle - splenic 75.4 °. In 75% of cases the level of vertebral projection was the upper third of L2. Conclusions: the most frequent origin was according to the classically described. About variants, the meeting of the superior mesenteric vein with the splenic vein is more constant, being the termination of inferior mesenteric vein more variable.
publisher Asociación Argentina de Anatomía Clínica (Argentine Association of Clinical Anatomy)
publishDate 2020
url https://revistas.unc.edu.ar/index.php/anatclinar/article/view/27560
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spelling I10-R321-article-275602020-03-26T01:49:40Z Origin of the porta vein: anatomy study ORIGEN DE LA VENA PORTA: ESTUDIO ANATÓMICO Mansilla, Sofía Mansilla, Alejandra Pouy, Andrés Garretano, Alejandra Cerchiari, Emilia Armand Ugón, Gustavo Veins Variations Afluents Venas Variaciones Afluentes Introduction: classically the portal vein originates from the confluence of the superior mesenteric vein and splenic mesenteric trunk, last one conformed by the splenic and inferior mesenteric veins. Its conformation and main tributaries does not escape from presenting anatomical variations, which the surgeon must know and anticipate, at the time of approaching the pancreatic duodenum massif in order to avoid catastrophic consequences. The objective is the study of the conformation, dimensions and spatial arrangement of the origin of the portal vein, and its main tributaries. Materials and method: 50 cadavers were. Portal vein origin, caliber and its tributaries were recorded. Flaring angles and vertebral projection level. Results: three types of origin were distinguished. Type I was recorded in 78% of cases, type II in 18% and type III in 4%. The calibers were: portal vein 16.12 mm, superior mesenteric 11.77 mm, splenic 9.34 mm, inferior mesenteric 5.03 mm and splenomesaraic trunk 10.44 mm. The latter reached a length of 20.26 mm. The angles were: portal angle - splenomesenteric trunk 124.18 °, upper mesenteric angle - splenomesenteric trunk 101.92 ° and lower mesenteric angle - splenic 75.4 °. In 75% of cases the level of vertebral projection was the upper third of L2. Conclusions: the most frequent origin was according to the classically described. About variants, the meeting of the superior mesenteric vein with the splenic vein is more constant, being the termination of inferior mesenteric vein more variable. Introducción: la vena porta origina clásicamente de la confluencia de las venas mesentérica superior y tronco espleno mesentérico, conformado por las venas esplénica y mesentérica inferior. Su conformación y principales afluentes no escapa de presentar variaciones anatómicas, las cuales el cirujano debe conocer y anticipar, al momento del abordaje del macizo duodeno pancreático en vistas a evitar consecuencias catastróficas. El objetivo es el estudio de la conformación, dimensiones y disposición espacial de la vena porta en su origen, y sus principales afluentes. Materiales y método: se utilizaron 50 cadáveres formolados. Se registró origen de la vena porta, calibre de la misma y sus afluentes. ángulos de abocamiento y nivel vertebral de proyección. Resultados: se distinguieron tres tipos de origen. Se registró el tipo I en el 78% de los casos, tipo II en el 18% y tipo III en el 4%. Los calibres fueron: vena porta 16,12 mm, mesentérica superior 11,77 mm, esplénica 9,34 mm, mesentérica inferior 5,03 mm y tronco esplenomesaraico de 10,44 mm. Este último, alcanzó una longitud de 20,26 mm. Los ángulos fueron: ángulo porta - tronco esplenomesenterico 124,18°, ángulo mesentérica superior - tronco esplenomesenterico 101,92° y ángulo mesentérica inferior - esplénica 75,4°. En el 75% de los casos el nivel de proyección vertebral fue el tercio superior de L2. Conclusiones: El origen mas frecuente fue el clásicamente descrito. De sus variantes, es mas constante la reunión de la vena mesentérica superior con la vena esplénica, y mas variable la desembocadura de la vena mesentérica inferior. Asociación Argentina de Anatomía Clínica (Argentine Association of Clinical Anatomy) 2020-03-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unc.edu.ar/index.php/anatclinar/article/view/27560 10.31051/1852.8023.v12.n1.27560 Revista Argentina de Anatomía Clínica (Argentine Journal of Clinical Anatomy); Vol. 12 No. 1 (2020): Mar 2020; 11-16 Revista Argentina de Anatomía Clínica; Vol. 12 Núm. 1 (2020): Mar 2020; 11-16 1852-8023 10.31051/1852.8023.v12.n1 spa https://revistas.unc.edu.ar/index.php/anatclinar/article/view/27560/29251 Derechos de autor 2020 Sofía Mansilla, Alejandra Mansilla, Andrés Pouy, Alejandra Garretano, Emilia Cerchiari, Gustavo Armand Ugón

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