A 57-year-old man who went to the emergency room for swelling of his extremities learned that his symptoms had an unusual cause: a massively enlarged chamber of his heart, according to a brief report ...

A 54-year-old woman presents with new onset of paroxysmal atrial fibrillation documented on Holter monitoring. The patient does not report any cardiac complaints such as dyspnea, angina, or ...

An 84-year-old woman with a history of atrial fibrillation presented with cough, lethargy and symptoms of progressive heart failure. She had not seen a physician for many years, despite persistent ...

Tricuspid regurgitation develops when the tricuspid valve between the right atrium and right ventricle does not close properly. The tricuspid valve controls the blood flow from the right atrium to the ...

An atrial septal defect of the secundum type is relatively common and occurs from failure of the septum secundum to develop. This results in a communication between the left and right atrium directly ...