Heart failure is a syndrome of ventricular dysfunction. Left ventricular failure causes shortness of breath and fatigue, and right ventricular failure causes peripheral and abdominal fluid accumulation; both ventricles are usually involved to some extent. Diagnosis is clinical, supported by chest x-ray and echocardiography. Treatment:-Diuresis, digoxin, vasodilators, inotropics, angiotensin converting enzyme inhibitors, and oxygen. Please see the web pages for more details on Heart failure.