Right coronary artery arising from the pulmonary trunk
M Baskurt1, A Yýldýz, I M Caglar
1Institution of Cardiology, Istanbul University, 34306Istanbul, Turkey. drmuratbaskurt@yahoo.com
The Thoracic and Cardiovascular Surgeon
|October 2, 2009
Summary
Anomalous origin of the right coronary artery (RCA) from the pulmonary trunk is rare. Multislice computed tomography aids in diagnosing this coronary anomaly, potentially preventing myocardial ischemia.
Area of Science:
- Cardiology
- Medical Imaging
Background:
- Coronary artery anomalies affect 0.3-1% of the population.
- Anomalous origin of the right coronary artery (RCA) is a rare condition.
- This anomaly can lead to serious cardiac events, including myocardial ischemia and sudden death.
Observation:
- A 67-year-old woman presented with an anomalous origin of the RCA.
- The RCA originated from the pulmonary trunk, a highly unusual presentation.
- Diagnosis was initially made via cardiac catheterization.
Findings:
- Multislice computed tomography (MSCT) confirmed the anomalous RCA origin.
- MSCT provided excellent spatial resolution for visualizing the coronary vessel's origin and course.
- This noninvasive technique proved effective in diagnosing the rare anomaly.
Implications:
- Accurate diagnosis of coronary artery anomalies is crucial for patient management.
- Multislice computed tomography offers a valuable noninvasive tool for detecting coronary anomalies.
- Early and precise diagnosis can help prevent severe cardiovascular complications.
Related Concept Videos
Coronary Circulation
The heart, an organ critical to survival, gets nourishment not from the blood it pumps but from a separate circulation system known as coronary circulation. This is the shortest circulation in the body and is responsible for supplying the heart with the nutrients it needs to function effectively.
Coronary circulation begins at the base of the aorta, where two main arteries arise—the left and right coronary arteries. These arteries encircle the heart in the coronary sulcus and supply the...
Coronary circulation begins at the base of the aorta, where two main arteries arise—the left and right coronary arteries. These arteries encircle the heart in the coronary sulcus and supply the...
Overview of Pulmonary Circulation
The pulmonary circulation is a vital system in our body that acts as a bridge between the respiratory and cardiovascular systems. It serves as a transport network for deoxygenated blood from the heart to the lungs and then returns oxygen-rich blood back to the heart.
The process begins with the right ventricle of the heart pumping deoxygenated blood into the pulmonary trunk. This large vessel extends about 5 centimeters before splitting into the left and right pulmonary arteries. These arteries...
The process begins with the right ventricle of the heart pumping deoxygenated blood into the pulmonary trunk. This large vessel extends about 5 centimeters before splitting into the left and right pulmonary arteries. These arteries...
Overview of Systemic and Pulmonary Circulation
The systemic and pulmonary circuits are crucial components of the circulatory system, working together to transport blood between the heart, lungs, and the rest of the body. The process begins with pulmonary circulation, where deoxygenated blood is pumped from the right ventricle to the lungs via the pulmonary trunk and arteries. Upon reaching the lungs, the blood becomes oxygenated and returns to the heart, specifically to the left atrium, via the pulmonary veins.
The oxygenated blood is sent...
The oxygenated blood is sent...
The Arch of Aorta
The coronary arteries, originating from the ascending aorta, bifurcate from two sinuses located within the ascending aorta. Positioned just above the aortic semilunar valve, these sinuses house essential aortic baroreceptors and chemoreceptors, crucial for maintaining cardiac function. The left coronary artery and the right coronary artery branch off from the left posterior and anterior aortic sinuses, respectively.
Encircling the heart, the coronary arteries form a ring-like structure before...
Encircling the heart, the coronary arteries form a ring-like structure before...
Thoracic Aorta
The thoracic section of the aorta begins at the T5 vertebra and extends to the T12 level at the diaphragm, initially progressing through the mediastinum to the left of the spinal column. Throughout its course in the thoracic segment, the thoracic aorta emits various offshoots known collectively as visceral and parietal branches. The branches that predominantly supply blood to visceral organs are termed visceral branches and include bronchial, pericardial, esophageal, and mediastinal arteries,...
Physiology of the Heart: The Cardiac Cycle
The cardiac cycle describes the events from one heartbeat to the next. It includes three main phases: diastole, atrial systole, and ventricular systole, all driven by changes in chamber pressures and the function of heart valves.
Diastole: The Relaxation Phase
During diastole, all four heart chambers relax. The atrioventricular (AV) valves open, and the semilunar valves close. This phase sees the lowest chamber pressures, promoting ventricular filling. Venous blood enters the heart through the...
Diastole: The Relaxation Phase
During diastole, all four heart chambers relax. The atrioventricular (AV) valves open, and the semilunar valves close. This phase sees the lowest chamber pressures, promoting ventricular filling. Venous blood enters the heart through the...


