Related Experiment Video
Updated: Dec 23, 2025
06:56
Author Spotlight: Advancing Cardiac Procedure Testing Prior to Embarking on Large Animal Studies
Published on: August 25, 2023
1.5K
The anatomy of the aortic root
Denis Berdajs1, Patonay Lajos, Marko Turina
1Department of Anatomy, Embryology and Histology, Laboratory for Applied and Clinical Anatomy, Semmelweis University Budapest, Budapest, Hungary. denis_berdajs@hotmail.com
Cardiovascular Surgery (London, England)
|October 3, 2002
Summary
The aortic root
Area of Science:
- Cardiovascular Surgery
- Anatomy
- Cardiac Surgery
Background:
- Aortic root preserving methods are increasingly used in heart surgery.
- Accurate anatomical knowledge of the aortic root is crucial for surgical success.
- Discrepancies exist between surgical and anatomical descriptions of the aortic root.
Purpose of the Study:
- To investigate the surgical anatomy of the aortic root.
- To provide precise measurements of aortic root dimensions relevant to surgical procedures.
Main Methods:
- Measurements of distances between commissures, sinus base to sinotubular junction, and sinus heights.
- Determination of sinotubular junction and annuli fibrosi circumferences.
- Direct measurement of sinus volumes and histological analysis of annuli fibrosi.
Main Results:
- The right sinus structures exhibit the largest dimensions, followed by the non-coronary and then the left coronary sinus.
- A mean tilt angle of 5.47 degrees was found between the sinotubular junction and aortic root base.
- Histological analysis indicated the annuli fibrosi border is at the interleaflet triangles.
Conclusions:
- Aortic root dimensions follow a consistent pattern: right > non-coronary > left coronary sinus.
- The identified tilt angle and diameter differences have potential hemodynamic and surgical significance.
- Detailed anatomical data supports improved aortic root surgery techniques.
Related Concept Videos
01:30Aneurysm I: Introduction
207
An aortic aneurysm is a localized outpouching or dilation at a weak point in the artery wall. It may involve different parts of the aorta, such as the abdominal aorta, aortic arch, or thoracic aorta.Etiological factorsSeveral disorders are associated with aortic aneurysms.Congenital causes, such as primary connective tissue disorders like Marfan syndrome, impact the integrity and strength of connective tissues, notably affecting the aorta. Marfan syndrome is a genetic disorder that specifically...
207
01:22Aortic Regurgitation II: Clinical Features and Diagnostic Tests
290
Aortic valve regurgitation (AR) occurs when the aortic valve fails to close properly, allowing blood to flow backward from the aorta into the left ventricle. This backflow can result in two distinct clinical presentations: acute and chronic AR, each characterized by its own set of symptoms and physical findings.Acute Aortic RegurgitationAcute AR presents with a sudden onset of severe symptoms. Patients typically experience profound dyspnea (shortness of breath), chest pain, and signs of left...
290
01:14The Aorta
2.0K
The aorta is the largest artery in the human body. It originates from the left ventricle of the heart and extends down to the abdomen, where it splits into two smaller arteries. Structurally, it can be divided into four main parts: the ascending aorta, the aortic arch, the thoracic aorta, and the abdominal aorta.
The average diameter of the aorta is approximately 2-3 cm, but the size can vary depending on the section of the aorta and the individual's age, sex, and body size. The aorta is...
The average diameter of the aorta is approximately 2-3 cm, but the size can vary depending on the section of the aorta and the individual's age, sex, and body size. The aorta is...
2.0K
01:10The Arch of Aorta
1.5K
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...
1.5K
01:15Thoracic Aorta
1.3K
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,...
1.3K
01:25Abdominal Aorta
1.9K
Once the aorta traverses the diaphragmatic plane at the aortic hiatus, it is known as the abdominal aorta. This anatomical structure is positioned leftward of the spinal column, encased within a cocoon of adipose tissue behind the peritoneal cavity. It terminates at the L4 vertebra, where it splits into the common iliac arteries. Prior to this bifurcation, the abdominal aorta gives rise to several vital branches.
The celiac trunk, a singular artery, divides into the left gastric artery, which...
The celiac trunk, a singular artery, divides into the left gastric artery, which...
1.9K