scholarly journals Angioarchitecture of the coronary arteries in Mazama gouazoubira (G. Fischer, 1814)

2021 ◽  
Vol 15 (4) ◽  
pp. 297-303
Author(s):  
Milena Sorban Zaniboni ◽  
Wilson Viotto-Souza ◽  
Drielly Gomes Assis Samora ◽  
Fernanda Coelho Simas Bernardes ◽  
André Luiz Quagliatto Santos ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Left Coronary Artery ◽  
South American ◽  
Myocardial Bridges ◽  
History Of ◽  
The Mean ◽  
Mazama Gouazoubira ◽  
The Right ◽  
South American Continent ◽  
Coronary Dominance

Mazama gouazoubira is a widely distributed deer in the South American continent. However, studies on its anatomical characteristics are still scarce. The objective of this study was to elucidate the coronary circulation of M. gouazoubira. With this aim, after collecting cadavers on highways, twenty-four hearts injected with latex and preserved in formaldehyde at 10% were dissected. The dissections revealed that all specimens presented left coronary dominance, characterized by the origin of the subsinuous interventricular branch from the circumflex branch of the left coronary artery. The number of ventricular branches originated from branches of the left coronary artery was approximately five times higher than that of the right coronary artery. The occurrence of myocardial bridges was registered in 91.7% of the individuals, with bridges predominating over the paraconal interventricular branch. The mean length of the paraconal interventricular sulcus was significantly higher in males (p = 0.02). The number of atrial branches and ventricular branches, length of myocardial bridges and length of subsinuous interventricular sulcus did not vary significantly between sex. Left coronary dominance and high frequency of myocardial bridges in M. gouazoubira are preponderant anatomical traits also present in different species of Ruminantia suborder. Coronary dominance studies in other South American deer species may confirm the correlation of this trait with the evolutionary history of these animals.

scholarly journals Normal values of coronary arteries branching height in women

2021 ◽  
Vol 27 (4) ◽  
pp. 41-46
Author(s):  
U.Ye. Pidvalna ◽  
D.M. Beshley ◽  
M.Z. Mirchuk ◽  
L.R. Mateshuk-Vatseba
Keyword(s):  
Body Mass Index ◽  
Coronary Artery ◽  
Body Mass ◽  
Coronary Arteries ◽  
Body Surface ◽  
Left Coronary Artery ◽  
Statistical Significance ◽  
Lower Edge ◽  
The Mean ◽  
The Right

Morphometric analysis of the structures of the aortic bulb and coronary arteries is necessary for the planning of cardiac surgery and endovascular interventions. The aim of the study was to determine the height of the coronary arteries branching in healthy women of Lviv city and Lviv region and to determine the relationship between the height of the location of the orifice of the coronary artery with anthropometric indicators. Fifteen computed tomography images with contrast of female thorax without heart and ascending aortic lesions (normal) were selected for the study. The height of the upper and lower edges of the coronary arteries was measured; height of Valsalva sinuses. The comparison of the mean values was performed according to the Student’s t-test. The correlation between the observed variables (age, height, body weight, body mass index, body surface area, height of the sinuses of Valsalva) was calculated using the Pearson linear correlation method (r). According to the study, the population group consisted of persons of the second period of adulthood (46.67 %) and the elderly (53.33 %). According to the body mass index, 80 % were overweight or obese I-II degree. The mean height of the coronary artery orifice in women without structural changes of the heart and ascending aorta was: 11.19±1.96 mm for the left and 11.68±1.80 mm for the right. The height of the orifice of the right and left coronary arteries were almost the same, without statistical significance (p=0.26). Analysis of the correlation between the values of the height of the orifice of the coronary artery did not show a probable dependence on height, weight, age, body mass index and body surface area. There is a direct relationship between the parameters of the height of the lower edge of the right coronary artery and the height of the upper edge of the right coronary artery (r=+0.75, p=0.001) and between the value of the lower edge of the left coronary artery and the upper edge of the left coronary artery (r=+0.63, p=0.01). Thus, the analysis of the correlation between the values of the height of the orifice of the coronary artery in women in norm and anthropometric indicators did not show a significant relationship. There was no statistical significance between the indicators of the height of the orifice of the right and left coronary arteries in women.

scholarly journals Anomalous origin of the left coronary artery from the pulmonary artery in a patient of advanced age: a case report and analysis

2019 ◽  
Vol 47 (6) ◽  
pp. 2687-2693
Author(s):  
QiongYa Qiu ◽  
JinXiu Yang ◽  
XingXiang Wang
Keyword(s):  
Coronary Artery ◽  
Pulmonary Artery ◽  
Right Coronary Artery ◽  
Left Coronary Artery ◽  
Mechanical Valve ◽  
Anomalous Origin ◽  
Mitral Valve Plasty ◽  
History Of ◽  
Anatomic Results ◽  
The Right

A 61-year-old Chinese man presented with a nearly 30-year history of an anomalous origin of the left coronary artery. He had been diagnosed with an anomalous origin of the left coronary artery in 1989. He then underwent regular echocardiographic examinations and it was found that his heart was gradually enlarging. After a >20-year asymptomatic period, he developed recurrent chest discomfort and palpitation. Coronary computed tomography angiography suggested that the left coronary artery anomaly originated from the pulmonary artery; additionally, the right coronary artery was tortuous and thickened. Coronary angiography showed that the right coronary artery was huge and buckling. The patient underwent corrective surgery of the anomalous origin of the left coronary artery from the pulmonary artery, aortic valve mechanical valve replacement, mitral valve plasty, and tricuspid valve plasty in Fuwai Hospital (National Center of Cardiovascular Disease of China), and the anatomic results of the surgery were good.

scholarly journals Trans-septal course of anomalous left main coronary artery originating from single right coronary ostium presenting with atrial fibrillation in a severely obese patient: a case report

2020 ◽  
Vol 72 (1) ◽  
Author(s):  
Armando Ugo Cavallo ◽  
Emanuele Muscogiuri ◽  
Marco Forcina ◽  
Antonio Colombo ◽  
Flavio Fiore ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Coronary Artery ◽  
Left Coronary Artery ◽  
Invasive Coronary Angiography ◽  
Interventricular Septum ◽  
Case Presentation ◽  
Severely Obese ◽  
History Of ◽  
Artery Disease ◽  
The Right

Abstract Background To present a case of anomalous origin of the left coronary artery evaluated with invasive coronary angiography (ICA) and ECG-gated coronary computed tomography (CCT). Case presentation A patient (55 years old, male) with a past medical history of respiratory failure and atrial fibrillation underwent ICA to rule out coronary artery disease. Subsequently, the patient underwent ECG-gated CCT to evaluate a suspected anomalous aortic origin of the left coronary artery, since the interventional cardiologist was not able to properly identify the left coronary artery and its distal branches. CCT showed left coronary artery originating from the right coronary Valsalva sinus, coursing within the interventricular septum and emerging at the middle segment of the interventricular sulcus, where the left anterior descending and circumflex arteries originated. Conclusion The case we presented highlights the value of ECG-gated CCT in the evaluation of coronary anomaly anatomy and thus risk stratification derived by proper coronary anatomy assessment. Although ICA was not helpful in the diagnosis, it also has a pivotal role regarding the therapeutic management of this condition.

scholarly journals Coronary arteries morphometry and their vascular territories

2013 ◽  
Vol 19 (3) ◽  
pp. 130-135
Author(s):  
V. Ispas ◽  
P. Bordei ◽  
D. M. Iliescu ◽  
R. Baz
Keyword(s):  
Coronary Artery ◽  
Right Ventricle ◽  
Coronary Arteries ◽  
Right Coronary Artery ◽  
Left Coronary Artery ◽  
Ct Scanner ◽  
Circumflex Artery ◽  
Marginal Artery ◽  
The Right ◽  
Coronary Dominance

Abstract Our study was performed on a total of 24 angioCT’s by each coronary artery executed on a GE LightSpeed VCT64 Slice CT Scanner. To assess the type of vascularization (coronary dominance) we used also dissection on fresh and formalin preserved hearts, injection of contrast substance followed by radiography and plastic mass injection followed by corrosion. Left coronary artery from origin I found a diameter of between 4.1 to 5.8 mm, the length of the left main coronary artery until its branching (bi or trifurcation) ranging from 3 to 11.8 mm. The diameter of the anterior interventricular artery, was between 1.8 to 3.4 mm, and when the anterior interventricular artery branched off a left marginal artery, it was less voluminous than the case when the marginal artery origin by trifurcation of coronary artery, with 1.8-2.5 mm. Anterior interventricular artery detach left anterior ventricular branches with a diameter of 1.2-2.2 mm. Circumflex artery present a diameter of 2.1 to 4.2 mm at the left aspect of the heart circumflex artery has a diameter of 2.1 to 3.4 mm. On the posterior surface of left ventricle from circumflex artery branches come off with 1.2 to 2.4 mm in diameter. Left marginal artery, when originate from the left coronary artery had a diameter of 2.1 to 2.8 mm. The right coronary artery presents at origin a diameter of 3.1 to 5.4 mm, from the coronary right for the anterior aspect of the right ventricle unhooking the branches with a diameter of 2.2 to 4.2 mm. To the posterior of the right ventricle right coronary artery gave branches with a diameter of 1.6 to 2.6 mm. Right marginal artery had a diameter of 1.6-2.2 mm, and in one case (4.17% from cases) had a diameter of 3.4 mm (when the right coronary origin was 5.4 mm ). From right the coronary atrial branches detaches with a caliber of 0.6-2 mm. Regarding the coronary dominance, we found on a number of 88 hearts that in 29.54% of cases there is predominance of right coronary artery in 25% of cases there is a predominance of the left coronary artery, and in 45.46% of cases there is a balance between the territories of the vascularity of the two coronary arteries.

Regularities in the distribution of myocardial bridges over the branches of the coronary arteries

2020 ◽  
Vol 9 (3) ◽  
pp. 16-21
Author(s):  
E. G. Dmitrieva ◽  
A. A. Yakimov
Keyword(s):  
Coronary Artery ◽  
Elderly People ◽  
Blood Supply ◽  
Coronary Arteries ◽  
Human Heart ◽  
Left Coronary Artery ◽  
Heart Diseases ◽  
Macroscopic Anatomy ◽  
Myocardial Bridges ◽  
The Right

The article highlights peculiarities of localization of myocardial bridges. It is believed that the coronary arteries and their branches are located in the subepicardial tissue. However, some researchers describe cases of intramural localization of their sections. Myocardial bridges – a set of fibers of the ventricular myocardium located over a certain area of the subepicardial branch of the coronary artery - represent variants of such localization.The aim of the study was to establish the patterns of macroscopic anatomy and topography of myocardial bridges investigating anatomical sections of the human heart in the adult and elderly people. Material and methods. The study involved 65 formalin-fixed sample preparations of the human heart of the adult and elderly people who died of conditions that were not associated with heart diseases. The authors measured transverse and longitudinal dimensions of the ventricular complex of the heart, and calculated the transverse-longitudinal index. Subepicardial vessels were prepared without prior injection. The number of myocardial bridges over the main branches of the coronary arteries was counted and their length was measured. The type of blood supply to the heart was determined according to a three-member classification, depending on the source of discharge of the posterior interventricular branch. Results. Myocardial bridges were observed on 44 (67.6%) sample preparations. As a rule, they were located over the branches of the left coronary artery (91.5%). They were typically located in the proximal half of the anterior interventricular sulcus. The length of the bridges ranged from 2.5 to 64 mm (Me = 13 mm). A direct positive correlation was found between the length of the ventricular complex of the heart and the length of the bridges. The relationship between the type of blood supply to the heart and the presence of bridges was not revealed. In 26 preparations, a cone artery departed from the right coronary sinus of the aorta, in addition to the right coronary artery, and bridges were observed in 17 sample preparations. Conclusion. Myocardial bridges are more typical for the branches of the left coronary artery compared to the right. They are typically localized in the proximal third of the anterior interventricular sulcus. There is a dependence between the length of the bridges and the length of the ventricular complex of the heart. The distribution and number of myocardial bridges does not depend on the type of blood supply to the heart, but is associated with the independent discharge of the cone artery from the aorta.

scholarly journals PATTERN OF CORONARY ARTERY DOMINANCE IN KASHMIRI POPULATION—AN ANGIOGRAPHY STUDY

2020 ◽  
pp. 1-2
Author(s):  
Sayma Samoon ◽  
Syed Manzoor Ali Andrabi ◽  
Mohd Saleem Itoo
Keyword(s):  
Acute Coronary Syndrome ◽  
Coronary Artery ◽  
Right Coronary Artery ◽  
Left Coronary Artery ◽  
Causes Of Death ◽  
Clinical Role ◽  
Coronary Syndrome ◽  
Kashmiri Population ◽  
The Mean ◽  
The Right

Background: .In developing countries like India CAD is one of the major causes of death. The pattern of coronary artery dominance has a significant clinical role. Left dominance is said to be associated with increase in acute coronary syndrome. The aim of this study was to determine the pattern of coronary artery dominance in Kashmiri population. Materials and Methods : The study was carried on 150 patients above 18 years of age who after routine clinical evaluation were to undergo coronary angiography for various indications and their angiogram was labelled as normal by cardiologist. Results: A total of 150 patients were included in the study, among them 102 were male and 48 were female patients. The mean age for females was 56.4±10.22 years with range from 40-89 years. The mean age of males were 56.1±10.83 years with range from 30-89 years. Right coronary artery was dominant in 130 (86.67%) subjects, left coronary artery was dominant in 15 (10%) subjects and co-dominant circulation was found in 5(3.33%) subjects. Conclusion: The right coronary artery dominance is more prevalent in Kashmiri population. Knowledge about coronary artery dominance provides helpful information to anatomist and is essential for interventional cardiologist.

scholarly journals Coronary Angioplasty of the Circumflex Artery with anomalous Left Coronary Artery and origin from the Right Sinus of Valsalva ¨A Case Report¨

2021 ◽  
Vol 4 (14) ◽  
pp. 01-04
Author(s):  
Rodrigo A. Martin ◽  
Ricardo Marcelo Cetera ◽  
Amalia Descalzo ◽  
Sergio Zolorza
Keyword(s):  
Coronary Artery ◽  
Coronary Angioplasty ◽  
Left Coronary Artery ◽  
Atherosclerotic Lesion ◽  
Anomalous Left Coronary Artery ◽  
Circumflex Artery ◽  
History Of ◽  
The Right ◽  
Sixth Decade ◽  
Anomalous Left Coronary

We report a patient in the sixth decade of life with a benign anomalous course and a history of atherosclerotic disease in the right coronary artery with the presence of ischemia. We present a clinical case of infrequent finding of abnormal left coronary artery and obstructive atherosclerotic lesion in the circumflex artery. The authors decided to perform coronary angioplasty on the lesion found. Because it is an infrequent condition, we conducted a literature search in which we focused on the statistical findings, the clinical presentation and detailed the treatment of the patient by means of coronary angioplasty. Despite the difficulty of the case, success was achieved.

Giant right coronary artery aneurysm

2020 ◽  
Vol 28 ◽  
pp. 1-3
Author(s):  
Alexandre Bonfim ◽  
Ronald Souza ◽  
Sérgio Beraldo ◽  
Frederico Nunes ◽  
Daniel Beraldo
Keyword(s):  
Coronary Artery ◽  
Right Coronary Artery ◽  
Coronary Artery Aneurysm ◽  
Clinical Course ◽  
Artery Aneurysm ◽  
Giant Aneurysm ◽  
Coronary Artery Aneurysms ◽  
History Of ◽  
Artery Disease ◽  
The Right

Right coronary artery aneurysms are rare and may result from severe coronary disease, with few cases described in the literature. Mortality is high, and therapy is still controversial. We report the case of a 72-year-old woman with arterial hypertension, and a family history of coronary artery disease, who evolved for 2 months with episodes of palpitations and dyspnea on moderate exertion. During the evaluation, a giant aneurysm was found in the proximal third of the right coronary artery. The patient underwent surgical treatment with grafting of the radial artery to the right coronary artery and ligation of the aneurysmal sac, with good clinical course.

MORPHOMETRIC ANATOMY AND INTRAORGAN TOPOGRAPHY OF THE CORONARY ORIFICES IN HEART OF ADULT HUMAN

2020 ◽  
pp. 40-47
Author(s):  
Андрей Аркадьевич Якимов ◽  
Евгения Германовна Дмитриева
Keyword(s):  
Coronary Artery ◽  
Blood Supply ◽  
Coronary Sinus ◽  
Left Coronary Artery ◽  
Rare Variants ◽  
Vertical Axis ◽  
Aortic Valves ◽  
Sinotubular Junction ◽  
Adult Human ◽  
The Right

Цель - выявить варианты строения и внутриорганной топографии устьев венечных артерий у взрослого человека при разных типах кровоснабжения желудочкового комплекса сердца. Материал и методы. На вскрытых через некоронарные синусы аорты 65 препаратах клапанов аорты взрослых людей изучили положение устьев венечных артерий, штангенциркулем измеряли минимальный и максимальный диаметры каждого устья, определяли их форму по соотношению диаметров. Результаты. Для устьев обеих артерий типичной была округлая, реже овальная форма. В большинстве случаев левая венечная артерия начиналась в центральной трети, правая - в центральной или задней трети «своего» синуса на уровне верхнего края полулунной заслонки или между ним и синотубулярным соединением. Локализация устьев в пределах синусов, на уровне синотубулярного соединения или выше него была редкой для обеих артерий. В 20 % случаев в правом синусе аорты спереди от устья правой венечной артерии имелось устье конусной артерии. Выводы. Типичные и редкие варианты формы правого и левого устьев, варианты их положения по вертикальной оси аорты одинаковы, варианты их положения по горизонтали различны. Зависимость вариантов формы и положения устьев от типа кровоснабжения желудочков сердца не выявлена. Objective - to reveal common and rare variants of the anatomy and intraorganic topography of the coronary orifices in normal hearts of adult human with regard to patterns of cardiac ventricular blood supply. Material and methods. On 65 specimens of aortic valves opened through non-coronary sinus, the minimal and maximal diameters of each orifice were measured with a caliper, the shape of the orifices was determined according to the ratio of the diameters, and the position of the orifices was studied. Results. The orifices of both right and left coronary arteries were mostly found to be round, less frequently oval. In most cases, the left coronary artery arose from the central third and the right artery arose from the central or posterior third of corresponding sinus at the level of the upper edge of the semilunar cusp or between the edge and the sinotubular junction. The localization of the arterial orifice within the sinuses at the level of sinotubular junction or above it was uncommon for the both arteries. In 20 % of cases, the conal artery arose with its own orifice in front of the mouth of the right coronary artery. Conclusions. Typical and rare shapes of the coronary orifices, variants of their position regarding to vertical axis of the aorta are the same, whereas variants of their position in horizontal axis are different. There is no relationship between variants of form of the orifices, position of the orifices and types of blood supply of heart ventricles.

scholarly journals Prenatally Diagnosed Isolated Coronary Arterial Fistula Leading to Severe Complications at Birth

2018 ◽  
Vol 2018 ◽  
pp. 1-3
Author(s):  
A. Wacker-Gussmann ◽  
T. Esser ◽  
S. M. Lobmaier ◽  
M. O. Vogt ◽  
E. Ostermayer ◽  
...  
Keyword(s):  
Prenatal Diagnosis ◽  
Coronary Artery ◽  
Right Ventricle ◽  
Doppler Echocardiography ◽  
Left Coronary Artery ◽  
Coronary Artery Fistula ◽  
The Right

Prenatal diagnosis of a huge coronary artery fistula between the left coronary artery and the right ventricle was made by Doppler echocardiography at 22 weeks of gestation. Progression of the dilated fistula was monitored throughout pregnancy. The size of the fistula increased enormously up to 11 mm. Death occurred at birth. Monitoring of these fetuses is essential as severe complications can occur during pregnancy or at birth.

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