What is a myocardial infarction?

Myocardial infarction, also known as myocardial infarction, refers to the occurrence of acute ischemic necrosis of the corresponding myocardium due to severe and prolonged acute ischemia of the coronary artery based on a drastic reduction or interruption of coronary blood supply. The clinical manifestations are sudden, severe and persistent retrosternal pain, characteristic electrocardiographic dynamic derivation and increase of serum enzymes, which can occur as arrhythmia, heart failure, shock and other comorbidities and can often be life-threatening. How should a patient save himself when he has a sudden heart attack? Myocardial infarction self-help method: If myocardial infarction is highly suspected, the patient should immediately lie down, and then the family members should call 120 in time. If nitroglycerin type drugs are available, patients with angina can take nitroglycerin; if aspirin is available, they can take 300mg, and go to the hospital in time for necessary examination and timely treatment. Can patients with myocardial infarction work normally after stenting? The concept of myocardial infarction is the sudden occlusion of the coronary artery, resulting in coagulative necrosis of the myocardium supplied by the vessel. After a myocardial infarction, the degree of impact on life varies depending on the specific condition of each patient. If a myocardial infarction occurs, the area of infarction is relatively large, and the opening of blood vessels and reperfusion time exceeds a certain period of time, such as after 90 minutes or even after six hours, less myocardium will be salvaged. If stenting is done in time after myocardial infarction, but the prognosis is poor if the heart function is poor and the EF value is low, the prognosis will also be poor, and the patient will soon have heart failure, arrhythmia, and the risk of bleeding. Both of these cases have a poor prognosis and will have different degrees of impact on the patient’s life after the stent is placed. However, if the infarct area is relatively small and the treatment is timely, then the impact of putting in a stent on the later life will be relatively small. What should I do if a ventricular wall tumor forms after a myocardial infarction? If a ventricular wall tumor forms after a myocardial infarction, the prognosis is poor. Physiologically speaking, when the heart contracts, the effective beat synchronization of the myocardium is impaired, which often results in a low EF value and a high risk of arrhythmia and ventricular thrombosis. In foreign countries, the level of surgery is higher, and surgery will be performed to remove ventricular wall tumor, and then bypass and coronary artery reconstruction surgery; in China, often in the case of ventricular wall tumor surgery is not much experience, only internal treatment, internal treatment can improve cardiac function, nutrition of myocardium, anti-myocardial ischemia, do stent intervention to save the viable myocardium. Can I have surgery for septal perforation after myocardial infarction? A septal perforation after myocardial infarction requires surgery. If the condition is stable, the surgeon will perform the repair surgery. However, the mortality rate in the acute phase is very high. In the acute phase of myocardial infarction, combined with septal perforation, or heart rupture, surgical intervention should be requested immediately, but the risk of surgery is very high. In China, there are cases of myocardial infarction combined with septal perforation in which interventional occlusion was successfully performed, but in general, the success rate is very low because the infarcted myocardial tissue is fragile, unlike the surrounding tissue of patients with simple septal defects, which is intact.