THE pulmonary circulation is of paramount importance in failure of the heart. The presence of dyspnea, orthopnea and hemoptysis and a diminution in vital capacity imply a profound change in the blood ...

The Fontan operation and its variants have become the procedures of choice in patients with one anatomical or functional ventricular chamber. In a normal biventricular heart, the systemic and ...

The shape of the heart cavities and the angle at which the pulmonary veins reach them are not always the same; rather, they vary according to the anatomical characteristics of each subject. Recently, ...

A new American Heart Association scientific statement suggests surgery be considered for more people with high-risk pulmonary embolism (PE). The statement, published today in the American Heart ...

—Bradley Allen Maron, MD, of Brigham and Women’s Hospital and Harvard Medical School, discusses what we know—and especially what we don’t--about the epidemiology, pathophysiology, diagnosis, prognosis ...

A pulmonary arteriovenous malformation is an abnormal connection between an artery and a vein within the lungs that allows deoxygenated venous blood to pass directly into the system circulation.

The health of your heart and circulatory system is critical to your overall well-being, and one of the most powerful ways to support these systems is through daily exercise. Incorporating physical ...

Biologists often show oxygenated blood as red, and deoxygenated blood as blue. This is just a way of illustrating it in biological diagrams. It's also helpful in showing the different regions of the ...