Anatomical Investigation of the Sinus Node Artery Using Dual-Source Computed Tomography

Zhang, Long Jiang; Wang, Yu Zhu; Huang, Wei; Chen, Peng; Zhou, Chang Sheng; Lu, Guang Ming

doi:10.1253/circj.cj-08-0149

Cited by 19 publications

(25 citation statements)

References 26 publications

(29 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The high variability observed in the frequency of the origin of the SAB is probably due to the size of the samples evaluated, to the methodology and interpretation of the findings, and to the diverse possibilities of expression of these structures in the diverse population groups. The distance from its emergence to the coronary ostium reported by Sahni et al,is similar to our observations (17.5 mm) and to what has been reported in humans (16.9-20.3 mm) (Bokeriya et al;Kyriakidis et al, 1988;Ortale et al, 2006;Pejkovic et al;Zhang et al, 2008;Ballesteros et al, 2011). Concerning the diameter of the SAB, no prior data in pigs are available, whereas in humans diameters ranging from 1,3-1.7 mm have been reported, namely, greater than those recorded in our study (1.1 mm) (Nerantzis & Avgoustakis, 1980;Bokeriya et al;Ortale et al, 2006;Pejkovic et al;Saremi et al;Zhang et al;Ballesteros et al, 2011).…”

Section: Discussionsupporting

confidence: 93%

Anatomic Study of the Right Coronary Artery in Pigs: Feature Review in Comparison with the Human Artery

Gómez

Ballesteros

2013

Int. J. Morphol.

View full text Add to dashboard Cite

SUMMARY:A few studies conducted on the morphology of coronary arteries in pigs emphasize the description of its course and number of branches. The objective of this study was to determine the anatomic expression of the right coronary artery (RCA) in pigs of commercial stock. One hundred and fifty eight hearts obtained from pigs destined to sacrifice were studied. The RCA were perfused with polyester resin (Palatal 85% and Styrene 15%) and then subjected to KOH infusion for 5 minutes to release the subepicardial fat. Diameters were measured and courses were evaluated. Results: The diameter of the RCA in its proximal portion was 3.85 mm (SD 0.75). The right artery of the cone originated from the RCA in 100 specimens (63.3%) and from the aorta (third coronary) in 8 specimens (5.1%). The posterior interventricular branch (PIB) reached the apex in the majority of the cases (49.3%). Its proximal diameter was 2.75 mm (SD 0.61). The sinoatrial node branch (SAB) and the atrioventricular node branch (AVNB) originated from the RCA in 100% of the specimens. The diameters of the SAB and AVNB were 1.1 mm (SD 0.30) and 1.16 mm (SD 0.30), respectively. The posterior right diagonal branch was not observed. There is an agreement with most prior studies with respect to both SAB and AVNB emerging from the RCA. Morphometric and qualitative knowledge of the RCA and its branches in pigs is relevant for the design of procedural and hemodynamic models.KEY WORDS: Pig; Right coronary artery, Sinoatrial node branch; right branch of the cone.

show abstract

Section: Discussionsupporting

confidence: 93%

Anatomic Study of the Right Coronary Artery in Pigs: Feature Review in Comparison with the Human Artery

Gómez

Ballesteros

2013

Int. J. Morphol.

View full text Add to dashboard Cite

show abstract

“…The proximal caliber of SAN observed in this study is similar to the reported by Zangh et al [31], but slightly minor than others [8,14,30,33] reporting a caliper of 1.4-1.7 mm. These differences may be given by preparation and measuring methods, also in the height-weight people's characteristics.…”

Section: Discussionsupporting

confidence: 89%

“…There are differences reported: a minor incidence (50%-54%) [9,31,32] and a major one (65-79%) [7,8,33,34], possibly due to ethnical and methodological differences. In this sense low incidences in SNA's origin from RCA can be highlighted in the works of Ramanathan [32] in Indian population, Zangh [31] in Chinese, and Krupa [9] in Polish. Additionally, in our series we found a double SNA origin (3.4%), which is consistent with reports of Ramanathan [32] and Ortale [33] and slightly lower than…”

Section: Discussionmentioning

confidence: 99%

Right coronary artery anatomy: anatomical and morphometric analysis

Ballesteros¹,

Ramírez²,

Quintero³

2011

Rev Bras Cir Cardiovasc

View full text Add to dashboard Cite

Background: It is necessary knowing the large variability of right coronary (RCA) artery specialty for its implications in surgical procedures and clinic events. This variability is usually related to the length, branches quantity, origin and irrigated territories.Objective: To evaluate by direct examination the morphologic expression of RCA in Colombian people.Methods: RCA were measured in 221 fresh hearts by RCA ostium canalization with polyester synthetic resin that was injected in their branches.Results: The caliber of the RCA proximal segment and at the level of the acute angle of the heart was 3.42 ± 0.66 mm and 2.9 ± 0.50 mm, respectively. It ended between crux cordis and the left margin in 75.6% of specimens. Posterior interventricular artery (PIA) reached the inferior third, or the apex, or the anterior interventricular sulcus in 149 (67.4%) cases. Sinoatrial node artery (SNA) originated in the right coronary in 134 (60.6%) cases, 77 (34.9%) from circumflex artery (CxA) and from both in 10 (4.5%). Posterior right diagonal artery (PRDA) was noted in 38 (17.2%) hearts, but only 6% of the sample with long PIA, concomitantly presented the PRDA (P = 0.001). In right dominance SNA were originated from RCA in 54.7% and form CxA in 46.3% (P = 0.06).Conclusions: Caliber of the RCA and its branches is lesser than the majority of previous studies, while the PRDA frequency is slightly higher than the reported in literature.Clinical and pathological scenarios by these variations should be taken into account: hemodynamic procedures, cardiac surgery and arrhythmias from coronary occlusive disease.Descriptors: Coronary Vessels. Coronary Circulation. Atrioventricular Node. Sinoatrial Node. ResumoIntrodução: É necessário conhecer a grande variabilidade da artéria coronária direita (ACD), especialmente por suas implicações nos procedimentos cirúrgicos e eventos clínicos. Esta variabilidade está geralmente relacionada à extensão, à quantidade de ramos, à origem e aos territórios irrigados.Objetivo: Avaliar por exame direto a expressão morfológica da ACD em sujeitos colombianos.Métodos: As ACD foram medidas em 221 corações frescos pela canalização do óstio da ACD com uma resina de poliéster sintético que foi injetada em seus ramos.Resultados: O calibre do segmento proximal da ACD e ao nível do ângulo agudo do coração foi de 3,42 ± 0,66 mm e 2,9 ± 0,50 mm, respectivamente. A ACD terminou entre a crux cordis e a margem esquerda em 75,6% da amostra. Rev Bras Cir Cardiovasc 2011;26(2):230-7 RCA near of the acute margin of the heart and adopt an oblique path on the posterior wall of the right ventricle to reach the middle third of posterior interventricular groove contributing to the irrigation of the lower segment of the diaphragmatic heart face [10][11][12][13]. The branch of the ANA start in the "inverted U" segment of the RCA located in the crux cordis (73%-85%) and the rest coming from the terminal branch of the CxA [14,15].The importance of the cardiac irrigation variability in special the RCA is supported by s...

show abstract

“…There have been few studies on the investigation of the origin and course of the arterial supply of the sinuatrial node (SAN) and the atrioventricular node (AVN) using multidetector CT (MDCT) technology [22,29]. This anatomic knowledge improves our understanding of the spatial relationships pertaining to cardiac vascular anatomy, and potentially influences preprocedural planning of catheterbased or open-surgical procedures performed near these important structures [4,5,7].…”

Section: Introductionmentioning

confidence: 99%

Multidetector CT imaging of arterial supply to sinuatrial and atrioventricular nodes

et al. 2011

View full text Add to dashboard Cite

show abstract

Anatomical Investigation of the Sinus Node Artery Using Dual-Source Computed Tomography

Cited by 19 publications

References 26 publications

Anatomic Study of the Right Coronary Artery in Pigs: Feature Review in Comparison with the Human Artery

Anatomic Study of the Right Coronary Artery in Pigs: Feature Review in Comparison with the Human Artery

Right coronary artery anatomy: anatomical and morphometric analysis

Multidetector CT imaging of arterial supply to sinuatrial and atrioventricular nodes

Contact Info

Product

Resources

About