Related Experiment Video
Updated: Jun 13, 2026

Donor Posterior Atrial Flap Rotation for Left Atrial Cuff Reconstruction in Lung Transplantation
Published on: October 11, 2024
A sinus of Valsalva-right atrium fistula without aneurysm formation
Yumiko Kanzaki1, Fumio Terasaki, Shigeo Fuji
1Department of Internal Medicine III, Osaka Medical College, Takatsuki. in3089@poh.osaka-med.ac.jp
Abstract:
A 61-year-old man was admitted to the hospital because of orthopnea and was diagnosed with heart failure with a continuous heart murmur. A transthoracic echocardiogram revealed turbulent flow from the right coronary sinus of Valsalva to the right atrium throughout the cardiac cycle. Aortography confirmed the presence of a shunt jet from the right coronary sinus of Valsalva to the right atrium. Cardiac catheterization revealed a left-right shunt rate of 47% and a pulmonary to systemic blood flow ratio of 1.81. Transesophageal echocardiography confirmed the existence of the shunt jet and revealed no deformity of the sinus of Valsalva. We report a rare case of sinus of Valsalva-right atrium fistula without typical aneurysmal formation.
Related Concept Videos
Chambers of the Heart
Deoxygenated blood from the body is received in the right...
Coronary Circulation
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 Systemic Veins
The coronary sinus, the heart's principal vein, resides in the coronary sulcus on the heart's posterior aspect. This broad venous channel receives nearly all venous blood from the myocardium, the heart muscle. It is fed by three primary veins: the great cardiac vein, the middle...
Mitral Stenosis I: Introduction
Aneurysm I: Introduction
Development of the Heart
As the embryo undergoes lateral folding, these paired tubes approach each other, merging into a single primitive heart tube by...

