The acute myocardial infarction risk period refers to 4-6 weeks, but one cannot rely on time staging alone and depends on the treatment of patients with acute myocardial infarction. Acute myocardial infarction refers to acute occlusion of the coronary arteries of the heart, often with plaque rupture and thrombosis, when patients must be evaluated for hemodynamic reconstruction, whether the prognosis is different for patients with hemodynamic reconstruction, and whether the time is timely for patients with hemodynamic reconstruction. Hemodynamic reconstruction refers to acute myocardial infarction thrombolytic therapy, emergency intervention, or emergency bypass therapy, several common clinical means is thrombolytic or interventional therapy, emergency bypass is relatively less done. Generally, in the acute stage, patients are in an unstable state because of myocardial electrical instability, myocardial remodeling, cell necrosis, and the heart is in an unstable state, and it is easy to have serious complications, such as malignant arrhythmia, and patients will have ventricular fibrillation, including mechanical complications, such as papillary muscle rupture, septal perforation, ventricular wall tumor formation, and intraventricular thrombosis, which need to be treated specifically, rather than simply looking at the value and time, and should be combined with the patient The severity of the disease must wait until the patient is out of the acute phase of life threatening conditions.