Acute heart failure is due to acute cardiac disease caused by a sudden, obvious, rapid decline in cardiac output, and the body tissue and organ perfusion deficiency and acute stasis syndrome. The common causes of acute heart failure are as follows: 1, some patients with coronary artery disease, acute extensive anterior wall myocardial infarction or ischemia caused by papillary muscle infarction rupture, as well as infarction after the perforation of the ventricular septum rupture of the acute heart failure; 2, some patients with infective endocarditis, due to the perforation of valves, tendon cords of the fracture, which can lead to acute valvular reflux, thus appearing in the heart failure; 3, there are also Hypertensive heart disease patients, due to a sudden and rapid increase in blood pressure, acute heart failure also occurs. 4, some patients themselves have the basis of heart disease, on the basis of which, the emergence of tachyarrhythmia, or the emergence of serious slow arrhythmia, resulting in acute heart failure. 5, there are also patients who do not have the basis of cardiac pathology, but in the short term infusion of too much too fast and the emergence of acute heart failure.