Post-myocardial infarction syndrome

We may not know much about post-myocardial infarction syndrome, but this disease often occurs in elderly people over 60 years old. Therefore, if there are elderly people at home, you should promptly understand the relevant symptoms and treatments of this disease to avoid feeling helpless after the disease suddenly comes. In fact, this disease sounds scary, but in fact it is not that scary if it is discovered in time and treated with certain medical means.

Post-myocardial infarction syndrome (PMIS), also known as Dressler syndrome, refers to a syndrome characterized by non-specific inflammation such as fever, pericarditis, pleurisy, pneumonia, etc. that occurs a few days to weeks after an acute myocardial infarction and tends to recur. The most common syndrome is acute myocardial infarction.

In recent years, with the deepening of understanding of this syndrome, it has been reported that this syndrome can occur not only after acute myocardial infarction, but also in other situations where myocardial damage exists, such as: pulmonary embolism, pneumonia, coronary artery bypass grafting, pacemaker implantation, radiofrequency ablation, etc.

In the early stage, when only a small amount of pericardial effusion occurs, there is no obvious effect on hemodynamics. When a large amount of pericardial effusion occurs, it can affect ventricular filling, reduce the amount of blood ejected per beat, lower blood pressure, and compensatory increase in heart rate and peripheral vascular resistance. At the same time, it can cause a decrease in the amount of blood returning to the heart, increased venous pressure, and systemic congestion. If constrictive pericarditis occurs in the late stage, it can cause severe restriction of ventricular filling, significantly reduced cardiac output, and persistent hypotension. At the same time, there is obvious systemic congestion and systemic wasting symptoms.

All patients undergoing cardiac surgery should be excluded from pericardial effusion due to surgical complications. However, most of these patients only present with pericardial effusion without other systemic manifestations or manifestations of other serous cavity effusions; and surgery-related pericardial effusions often occur immediately or within a short period of time after surgery, while this disease often occurs 2 weeks after heart injury.