Dominância coronariana em corações humanos em moldes por corrosão

Abuchaim, Décio Cavalet Soares; Spera, Carlos Alexandre; Faraco, Djalma Luis; Filho, Jurandir Marcondes Ribas; Malafaia, Oswaldo

doi:10.1590/s0102-76382009000500013

Cited by 19 publications

(18 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Concerning the trifurcation of the left coronary artery, 22% of the cases recorded in this study were respectively consistent with the 20% and 21% observed by Moura Junior et al 2008and Gómez and Ballesteros (2014). Lima Júnior and Prates (1994), on the other hand, report the occurrence, in humans, of trifurcation in 38.70% of the 50 samples studied -a figure higher than the 8% mentioned by Abuchaim et al (2009) in 25 hearts. Findings such as these set off the broad variation regarding the distribution of those arteries, even when the same methodology of assessment is consulted.…”

Section: Discussionsupporting

confidence: 90%

“…In 84% of the samples of boars, the right branch to the conus arteriosus was the first to emerge on the left of the right coronary artery, and, in swine, Sahni et al (2008) found that branch in 100% of their samples. As well as in this study, Abuchaim et al (2009) observed, in humans, the branch of the conus arteriosus with its origin in the right coronary artery.…”

Section: Discussionsupporting

confidence: 86%

“…Studies on coronary arteries in humans describe that the right coronary artery occupies the coronary groove, produces branches to the left ventricle and atrium, and correlates their finalization about reaching, or even surpassing, the crux cordis (VILALLONGA, 2003;ABUCHAIM et al, 2009), enabling thus the correlation of that segment to the right circumflex branch in the Sus scrofa. In the literature consulted regarding ruminants, such as bovines (CORREIA-OLIVEIRA et al, 2013) and goats (MOURA JUNIOR et al, 2009), we verified that the right coronary artery has traits that are similar to those aforementioned; however, it is short and does not reach the crux cordis, or the subsinuous interventricular groove.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Origin and distribution of the coronary arteries of boars

Borges¹,

Ribeiro²,

Romão³

et al. 2019

Braz. J. Vet. Res. Anim. Sci.

View full text Add to dashboard Cite

The heart of a domestic swine is similar to that of a human regarding anatomy, blood perfusion, and distribution of nurturing arteries. In addition to the similarities, its low cost compared with other species is also one of the reasons these animals have been increasingly used in medical schools and in clinical, surgical, and pharmacological studies. Therefore, we aimed to identify the origin and distribution of the right and left coronary arteries of boars, emphasizing the configuration and macroscopic representativity of their branches while characterizing a possible dominance concerning the type of circulation and the potential use of this animal as an experimental model, hence boars are the ancestors of the domestic pigs. The left coronary artery has bifurcated into paraconal interventricular branch and circumflex branch; or it has trifurcated into paraconal interventricular branch, the oblique branch, and into the left circumflex branch. The right coronary artery has originated the marginal branches to the right ventricle and the right circumflex branch, which has branched out in the subsinuous interventricular branch. Anastomoses have stood out among the paraconal and subsinuous interventricular branches – where a right dominant coronary artery occurred – and between the right and left circumflex branches. We concluded that the morphology and the distribution of the coronary arteries of boars resemble those of a human and, thus, our results are useful for the conception of experimental hemodynamics and possible use as process models.

show abstract

Section: Discussionsupporting

confidence: 90%

Section: Discussionsupporting

confidence: 86%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Origin and distribution of the coronary arteries of boars

Borges¹,

Ribeiro²,

Romão³

et al. 2019

Braz. J. Vet. Res. Anim. Sci.

View full text Add to dashboard Cite

show abstract

“…Em estudo referente à dominância coronariana em corações humanos em moldes por corrosão, Abuchaim et al (2009) A artéria coronária direita se originou diretamente da aorta em 100% dos corações, em ambos os sexos. Em machos, em todos os corações estudados, a artéria coronária direita emitiu 60 ramos para o ventrículo direito.…”

Section: Discussionunclassified

Dominância entre as artérias coronárias em bovinos mestiços

Oliveira¹,

Moraes²,

Gomes³

et al. 2014

RBCV

View full text Add to dashboard Cite

ResumoO coração é irrigado pelas artérias coronárias, direita e esquerda. Elas ocupam os sulcos coronários, atrioventricular e interventriculares, apresentando diferenças na distribuição, e trajeto de acordo com a espécie. O objetivo deste estudo foi verificar a dominância entre as artérias coronárias em bovinos. Trinta corações de bovinos de ambos os sexos foram analisados. Nas artérias coronárias e em seus ramos principais, injetou-se Petrolátex S-65 corado e os corações foram imersos e conservados em cubas contendo solução de formaldeído a 10% por sete dias. As artérias coronárias e seus ramos foram dissecados até as ramificações visíveis. A artéria coronária esquerda se originou diretamente da aorta em 100% dos corações em ambos os sexos. Originavam-se desta artéria o ramo interventricular paraconal e o ramo circunflexo esquerdo em 100% dos corações em ambos os sexos. O ramo interventricular subsinuoso se originou do ramo circunflexo esquerdo em 100% dos corações investigados em ambos os sexos. A média do comprimento em centímetros (cm) do ramo interventricular paraconal foi 15,50 ± 0,57 nos machos e 15,44 ± 0,60 nas fêmeas. A média do comprimento em centímetros (cm) do ramo circunflexo esquerdo foi 11,91 ± 0,43 nos machos e 11,65 ± 0,48 nas fêmeas. Os principais ramos da artéria coronária esquerda (ramo interventricular paraconal, ramo circunflexo esquerdo e ramo interventricular subsinuoso) totalizaram 85,5% considerando todos os corações estudados, de machos e fêmeas, e a artéria coronária direita emitiu 14,5% dos ramos em todos os corações estudados.Palavras-chave: coração, ramos, vascularização. AbstractThe heart is irrigated by the right and left coronary arteries. These vessels occupy the atrioventricular and interventricular coronary grooves, showing differences in the distribution and path according to the species. The aim of this study was to verify the dominance of the coronary arteries in cattle. Thirty hearts of bovines, of both sexes, were fixed in 10% formalin and the coronary arteries were cannulated and filled with stained latex S-65. Afterwards they were immersed and stored in vats containing 10% formaldehyde solution for seven days. The coronary arteries and their branches were dissected until the visible ramifications. The left coronary artery originated directly from the aorta in 100% of hearts in both sexes. This artery originated the paraconal interventricular branch and left circumflex branch in 100% of hearts in both sexes The left circumflex branch originated the Interventricular branch subsinuous in 100% of hearts investigated in both sexes. The mean and standard deviation of the length of the interventricular paraconal branch in centimeters (cm) was 15.50 ± 0.57 in males and 15.44 ± 0.60 in females. The mean and standard deviation of the left circumflex branch length in centimeters (cm) was 11.91 ± 0.43 in males and 11.65 ± 0.48 in females. The main branches of the left coronary artery totaled 85.5%, considering all samples, and the right coronary artery issued 14.5% of the branch...

show abstract

“…The right coronary dominance is the most prevalent dominance pattern observed in normal humans [16,17], occurring in 72% of individuals [15]. In HLHS, the dominance has hardly been studied [18], and most studies analyzed their morphological and histological changes only [19][20][21][22].…”

Section: Discussionmentioning

confidence: 99%

Dominância coronariana na síndrome da hipoplasia do coração esquerdo

Abuchaim¹,

Tanamati²,

Jatene³

et al. 2011

Rev Bras Cir Cardiovasc

View full text Add to dashboard Cite

Introduction: Although hypoplastic left heart syndrome (HLHS) is extensively studied this disease still has a high mortality rate compared to other diseases treated as univentricular physiology. In this context, morphological differences between phenotypes within the spectrum of HLHS may be recognized as risk factors, and their identification can assist in choosing treatment between subgroups.Objective: To identify the most prevalent form of coronary artery dominance in HLHS in subgroups with atresia and mitral stenosis.Methods: Analysis of the coronary anatomy according to the distribution of epicardial branches and the dominance patterns classified as right, left, or balanced (co-dominant). Control group was composed of nine specimens of morphologically normal hearts; the HLHS group consisted of nine specimens with MA and 24 specimens with MS. We applied Chi-square test for statistical analysis.Results: There were significant differences between the two groups in relation to coronary artery dominance (÷2 = 9.298; P = 0.01). Left dominance was present in 75% of MS cases and the balanced (co-dominant) dominance was observed only in MS. In the control group, right dominance was observed in all cases (P <0.01).Conclusions: Left dominance is more common in HLHS than in the control group of normal hearts and in HLHS. The left coronary dominance is more frequent in the subgroup with mitral stenosis.Descriptors: Heart/anatomy & histology. Coronary vessels. Hypoplastic left heart syndrome. Heart defects, congenital. Rev Bras Cir Cardiovasc 2011;26(4):604-8 Resumo

show abstract

Dominância coronariana em corações humanos em moldes por corrosão

Cited by 19 publications

References 9 publications

Origin and distribution of the coronary arteries of boars

Origin and distribution of the coronary arteries of boars

Dominância entre as artérias coronárias em bovinos mestiços

Dominância coronariana na síndrome da hipoplasia do coração esquerdo

Contact Info

Product

Resources

About