Do Indo-Asians have smaller coronary arteries?

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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“…We found larger calibers in LCA than RCA. These findings are consistent with angiographic and post-morten measurements [19][20][21][22][23][24] .…”

Section: Discussionsupporting

confidence: 80%

“…Curiously, Lip et al [23] found in indoasian people a narrower caliber of 2.98 mm. Equally with our results, Dodge et al [21] and Kaimkhani et al [24], found a correlation between coronary dominance and caliber, being higher in hearts with right dominance.…”

Section: Discussionmentioning

confidence: 99%

Right coronary artery anatomy: anatomical and morphometric analysis

Ballesteros¹,

Ramírez²,

Quintero³

2011

Rev Bras Cir Cardiovasc

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“…Several studies have demonstrated that age, body weight gender, genetics, and ethnicity play a role in this difference. [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] In this study, we preferred using a tabular format to compare our study with earlier studies that employed a similar working methodology ( Table 3). Our study results were comparable to those of the studies conducted in the Iraqi population.…”

Section: Discussionmentioning

confidence: 99%

“…[4] Lumen diameter of normal human coronary arteries and several factors affecting their lumen diameters have previously been studied in different countries on different populations. [5][6][7][8][9][10] To the best of our knowledge, there is no study with international recognition regarding normal Angiographic analysis of normal coronary artery lumen diameter in a Turkish population* coronary artery diameters in Turkish population. The aim of this study was to measure the coronary artery diameters of the individuals with normal coronary arteries on angiographic images, to assess the association among the different diameter values as well as the effect of age and the gender on the diameters, and finally compare our results with those from other populations.…”

Section: Introductionmentioning

confidence: 99%

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Angiographic analysis of normal coronary artery lumen diameter in a Turkish population

Turamanlar¹,

Adalı²,

Acay³

et al. 2016

Anatomy

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IntroductionWith its increasing incidence, coronary artery disease is one of the most common causes of morbidity and mortality especially in the industrialized countries, accounting for more than one-third of total deaths. Cardiovascular diseases are the cause of almost half of the deaths in Turkey. Amongst the European Union countries, Turkey is the fourth in the mortality caused by cardiovascular diseases in men and the first in women. [1,2] Coronary artery diameters are one of the most important factors that affect the technique and outcome of coronary by-pass operations. [3] Coronary arteries arise from the aorta as two branches, the right coronary artery (RCA) and the left main coronary artery (LMCA). After a short distance, the LMCA divides into two, and gives the left anterior descending (LAD) and circumflex artery (Cx) branches. While LAD runs along the anterior interventricular sulcus down towards the apex, Cx artery runs along the atrioventricular groove, giving rise to the left marginal branch. The circumflex then continues around the heart, terminating on its posteroinferior aspect, to supply blood to both the left and right atrium. [4] Lumen diameter of normal human coronary arteries and several factors affecting their lumen diameters have previously been studied in different countries on different populations. [5][6][7][8][9][10] To the best of our knowledge, there is no study with international recognition regarding normal AbstractObjectives: Cardiovascular diseases are the cause of nearly half of deaths in Turkey. Coronary artery diameters affect the procedure and outcome of coronary by-pass operations. The aim of this study was to measure the coronary artery diameters of the individuals with normal coronary artery on angiographic images to assess to provide data for a normal Turkish population and compare the results with studies from other countries.Methods: Seventy-seven male and female individuals between 31-79 years old were used in the study. Diameters of the two coronary arteries and their branches were measured in four segments using the Image J program. Results:The mean diameters of major coronary arteries i.e. LMCA, LAD, Cx and RCA were measured as 4.43±0.76 mm, 3.48±0.53 mm, 3.11±0.67 mm and 3.45±0.50 mm, respectively. Conclusion:This study revealed that the coronary artery lumen diameters of the Turkish population were parallel with the study conducted in the Iraqi population especially. A statistically significant correlation between certain coronary artery diameters were demonstrated also found. The findings of this study will contribute to the diagnosis and the treatment methods for the patients.

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Ethnicity and Atrial Fibrillation: A Counterintuitive Phenomenon

Colella

Modesti

2018

Updates in Hypertension and Cardiovascular Protection

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Do Indo-Asians have smaller coronary arteries?

Cited by 63 publications

References 11 publications

Right coronary artery anatomy: anatomical and morphometric analysis

Right coronary artery anatomy: anatomical and morphometric analysis

Angiographic analysis of normal coronary artery lumen diameter in a Turkish population

Ethnicity and Atrial Fibrillation: A Counterintuitive Phenomenon

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