Common Atrium in a Dog

Surgical repair of a common atrium in an adult.

We report a rare successful surgical repair of a common atrium (CA) with mild tricuspid valve (TV) regurgitation due to valvular annulus enlargement in a 39-year-old man, who had a complete atrial septum defect (ASD) without the characteristic of an endocardial cushion defect. The left-to-right shunt ratio was 85 percent and the Qp/Qs was 6.7 due to the CA. Left ventriculogram revealed no evide...

Adenosine-guanosine interactions in the isolated dog atrium.

Pharmacological analysis of dopamine action on the isolated dog atrium.

The isolated right atrium of the dog was perfused with arterial blood introduced from a carotid artery of a support dog. The selective injection of dopamine, tyramine and norepinephrine into the cannulated sinus node artery induced dose-relatedly positive chronotropic and inotropic effects. However, for an equal increase in sinus rate, dopamine caused less increase in tension development than n...

Common Atrium: A Rare Cause of Acute Decompensated Heart Failure

We report a rare case of common atrium and acute decompensated heart failure most likely precipitated by acute bacterial pericarditis leading to premature death, in a 25-year-old male footballer. The silent course of the disease for decades as well as the diagnostic and management pitfalls of this case illustrates the importance of early detection by echocardiography and urgent appropriate trea...

Budd-Chiari-Like Syndrome Associated with a Pheochromocytoma Invading the Right Atrium in a Dog

Rosa, C. 180 INTRODUCTION Budd-Chiari-like syndrome (BCLS) refers to hepatic venous outflow obstruction, resulting in post-sinusoidal portal hypertension and peritoneal effusion. The obstruction may occur anywhere along the post-hepatic veins, caudal vena cava (CVC), up to the right atrium (1, 2). Causes of BCLS include CVC intra-luminal obstruction (e.g., thrombosis and neoplasia) (2, 3, 4), e...