Frequência da artéria caroticobasilar em equinos mestiços: estudo anatômico destinado a pesquisa experimental e ao diagnóstico por imagem

Paiva-de-Souza, Ana Virgilia; Xavier-Silva, Bárbara; Antunes, Marcelo Soares; Hernandez, José Miguel Farias; Scherer, Paulo Oldemar; Figueiredo, Marcelo Abidú

doi:10.1590/s0100-736x2010000800013

Cited by 3 publications

(3 citation statements)

References 8 publications

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“…Alguns autores (Ferreira 1998, Reckziegel 2001, Ferreira 2002, Campos et al 2003, Ferreira & Prada 2005, Paiva--de-Souza et al 2010) após estudar em ungulados os arranjos apresentados pelas artérias encefálicas, destacaram que variados grupos de animais têm despertado muito interesse desde épocas remotas. Um modelo de classiϐicação desses arranjos foi proposto por Tandler (1898), demonstrando que a ϐilogenia e a ontogenia dessas artérias modiϐicam-se em paralelismo com a evolução das exigências funcionais do sistema nervoso central.…”

Section: Introductionunclassified

Morfologia dos vasos da base do encéfalo do quati (Nasua nasua)

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Franciolli³

et al. 2012

Pesq. Vet. Bras.

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Pesq. Vet. Bras. 32(6):567-572, junho 2012 567 RESUMO.-Estudou-se a morfologia do encéfalo de Nasua nasua -quati, buscando comparar estes achados com outras espécies já descritos. Foram utilizados cinco encéfalos de quatis, provenientes do Criatório Cientíϐico (Cecrimpas), Unifeob. Os animais foram eutanásiados de acordo com a legislação (Cobea). Canulou-se a artéria carótida comum e a veia jugular externa sentido cranial, injetou-se solução de Morfologia dos vasos da base do encéfalo do quati (Nasua nasua) The morphology of the brain of coati, Nasua nasua, was studied, to compare the ϐindin-gs with other species described. The brains of ϐive coatis were used, proceeding from the Scientiϐic Breeding School (Cecrimpas), Unifeob. The animals were sacriϐiced in accordance with the legislation (Cobea). With a needle, the common carotid artery and the external jugular vein was cannulated to cranial direction, injected latex solution stained with colored red barium respectively. Afterwards the animals were ϐixed in 10% formaldehyde solution. Brain has its dependent nutrition of four arteries, the internal carotid arteries and the right and left vertebral arteries. These vessels had composed the basal and carotid circuits that anastomose through the cerebral arteries volumes. They run in the base of the brain under piamater meninges.

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Section: Introductionunclassified

Morfologia dos vasos da base do encéfalo do quati (Nasua nasua)

Barreiro

Carvalho

Franciolli³

et al. 2012

Pesq. Vet. Bras.

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“…Variações na artéria basilar foram descritas por Paiva-de-Souza et al 31 , em equinos mestiços, com a frequência variável da artéria caroticobasilar, uma anastomose entre a artéria carótida interna e a artéria basilar observada na face ventral do tronco encefálico. Estes vasos também foram observados na presente pesquisa.…”

Section: Discussionunclassified

Morfometria do encéfalo e formação do circuito arterial em equinos mestiços

et al. 2014

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RESUMOO objetivo desta investigação foi caracterizar a morfometria do encéfalo e a formação do circuito arterial em equinos adultos mestiços de ambos os sexos. A fixação foi feita através de cânula plástica introduzida na artéria carótida comum com solução de formaldeído a 10%. Em seguida, foram feitas repleções vasculares com solução aquosa de Petrolátex S65 corado com pigmento Suvinil vermelho. Procedeu-se a craniotomia, remoção e morfometria dos encéfalos e dissecção para a observação das ramificações principais da artéria basilar e formação do circuito arterial. A média mais erro padrão da média do comprimento da artéria basilar foi de 3,629 cm ± 0,1550 nos machos e 4,423 cm ± 0,1990 nas fêmeas (p=0,0037). Em todos os equinos dissecados, a artéria basilar originouse da convergência das artérias vertebrais, emitindo a artéria cerebelar caudal, ramos variados para bulbo e ponte, ramos terminais e artérias cerebelares rostrais. As artérias da base do encéfalo estiveram na dependência dos sistemas carótico e vértebrobasilar. O circuito arterial do cérebro apresentou-se fechado rostral e caudalmente em 100% dos animais dissecados. PALAVRAS-CHAVE: cérebro, circuito arterial, equino MORPHOMETRY OF THE BRAIN AND ARTERIAL CIRCUIT FORMATION IN CROSSBREAD HORSE ABSTRACTThe aim of this study was to describe the main branches of the basilar artery, formation of the arterial circuit and the morphometry of the brain in adult crossbreed horses of both sexes. The setting was made by plastic tube inserted into the common carotid artery with 10% formaldehyde solution. After fixed, latex solution stained with pigment was injected. Craniotomy, morphometry of the brain and dissection were made to identify the main branches of the basilar arteries and the formation of the arterial circuit. The mean and standard error of the mean of the basilar artery was 3.629 cm ± 0.1550 in males and 4.423 cm ± 0.1990 in females (p=0.0037). In all animals the basilar artery originated from the fusion of the vertebral arteries giving rise to caudal cerebellar arteries, different numbers of branches to bulbus and pons, terminal branches and rostral cerebellar arteries. The arteries of the base of the brain depended on the carotid and vertebral-basilar systems. The brain circuit was closed rostrally and caudally in all horses.

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“…As a consequence of aging alterations take place in cardiovascular anatomy and physiology which are not considered pathological (Mendes & Themudo Barata 2008). In these cases, studies of vessel hemodynamics are primordial to detect any cardiovascular alterations, whether they are due to senility or to pathological processes (Paiva- de-Souza et al 2010, Aguiar 2015. This study aimed at describing the B-mode and Doppler ultrasonography variables in the common carotid arteries of equine females and mules and at correlating them with age, body mass and neck circumferences in these animals.…”

Section: Introductionmentioning

confidence: 99%

B-mode and Doppler ultrasonography in the assessment of the common carotid arteries of equines and mules and the relation with body mass, age and neck circumference

et al. 2019

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As age increases, changes in cardiovascular anatomy and physiology occur, even in the absence of disease. Thus, studies of vessel hemodynamics are considered primordial to detect any cardiovascular changes. The objective of this study has been to describe the parameters of B-mode and spectral Doppler ultrasonography in the evaluation of the common carotid arteries of 11 equine and 11 mules, and correlate with age, body mass and neck circumferences. The diameters, intima - media thickness (IMT), resistivity index (RI), pulsatility index (PI), systolic velocity (SV), diastolic velocity (DV), maximum velocity (MV), vascular flow index (VFI), body mass, age, circumference and neck length. Ultrasonographic variables were evaluated in three different region called cranial, middle and caudal. Equine females presented higher values regarding the body mass, age and neck length, as compared to the neck circumferences of the animals, those of the mules were superior. The age of the mules had a positive correlation with the body mass, diameter and neck circumferences, it has a negative correlation between age and vessel diameters. The body mass of the mules had a positive correlation with age and vessel diameters, and with vessel diameters and neck circumferences in equine females. The RI and PI variables had a positive correlation with body mass for mules, and with age for equine females. The DV had a negative correlation with body mass for both equine and mule females. Regarding the variables MV and VFI, age correlated negatively for mules, while it was not significant for equine females. It found a difference between equine females and mules in the correlations performed, with body mass, age, neck circumferences and between B-mode and Doppler ultrasonography variables.

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Frequência da artéria caroticobasilar em equinos mestiços: estudo anatômico destinado a pesquisa experimental e ao diagnóstico por imagem

Cited by 3 publications

References 8 publications

Morfologia dos vasos da base do encéfalo do quati (Nasua nasua)

Morfologia dos vasos da base do encéfalo do quati (Nasua nasua)

Morfometria do encéfalo e formação do circuito arterial em equinos mestiços

B-mode and Doppler ultrasonography in the assessment of the common carotid arteries of equines and mules and the relation with body mass, age and neck circumference

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