Anatomical Variations in the Human Sinuatrial Nodal Artery

Ortale, José Roberto; Paganoti, Cristiane de Freitas; Marchiori, G

doi:10.1590/s1807-59322006000600011

Cited by 18 publications

(33 citation statements)

References 15 publications

(39 reference statements)

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“…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: Discussionsupporting

confidence: 93%

“…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.…”

Section: Discussionmentioning

confidence: 99%

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Right coronary artery anatomy: anatomical and morphometric analysis

Ballesteros¹,

Ramírez²,

Quintero³

2011

Rev Bras Cir Cardiovasc

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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...

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Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 89%

See 1 more Smart Citation

Right coronary artery anatomy: anatomical and morphometric analysis

Ballesteros¹,

Ramírez²,

Quintero³

2011

Rev Bras Cir Cardiovasc

View full text Add to dashboard Cite

show abstract

“…Anatomical descriptions of the blood supply of the SNA have been reported previously, [3][4][5][6][7][8][9][10] but have been based solely on detailed cadaveric dissections and/or angiographic studies. However, it is difficult to dissect the SNA because of its tortuous course within the heart and although conventional CAG is the gold standard for clearly delineating the anatomical origin, course, and distribution of the SNA, it is an invasive technique associated with some complications and risks.…”

Section: Discussionmentioning

confidence: 99%

“…3 However, our findings do not agree well with other studies in which the SNA predominantly originated from the RCA. [4][5][6][7][8][9][10] Berdajs et al found that 66% of the SNAs originated from the RCA, and 34% from the LCX. 4 Hadzeiselimovic et al found that 60% of the SNAs originated from the RCA and 40% from the LCX in 200 cadaveric hearts 5 and Bokeriya et al found 61.4% of the SNAs originated from the RCA and 38.4% from the LCX in 70 cadaveric hearts.…”

Section: Discussionmentioning

confidence: 99%