Myocardial infarction, also known as heart attack, is a cardiovascular medical disease that generally occurs in middle-aged and elderly people. It seriously endangers the health of patients and even threatens their lives. 
Myocardial infarction is the necrosis of the myocardium after ischemia (restricted or reduced blood flow), when the necrotic myocardium cannot be regenerated. 
Prevent Scar Formation
How can the necrotic myocardium be repaired? 
The human body replaces it with scar tissue, also known as cardiac remodeling. This is similar to growing a scar after a skin break, but the scar tissue that grows does not have the same function as normal skin tissue. Likewise, scar tissue in the heart is not equivalent to normal heart muscle tissue. …