Causes of Elevated BNP After Acute Myocardial Infarction Surgery

Elevated BNP levels primarily indicate heart failure. After a myocardial infarction, extensive myocardial cell necrosis leads to dyssynchronous cardiac motion and even reduced myocardial contractile function, resulting in heart failure. Although surgery may partially alleviate this condition, surgical intervention itself can also impair cardiac contractility. Therefore, heart failure following myocardial infarction is common.