Myocardial Infarction: A Comprehensive Review

Abstract

Myocardial infarction (MI), commonly known as a heart attack, is a critical medical condition resulting from the blockage of one or more coronary arteries. MI has been classified differently over time, with the most recent classification proposed by the European Society of Cardiology and the American College of Cardiology. This new classification considers various types of MI based on clinical presentations and underlying mechanisms. MI is a significant public health issue globally, with a high prevalence and a substantial impact on healthcare resources and the economy. The pathophysiology of MI is multifactorial, with factors such as atherosclerosis, thrombosis, and inflammation playing crucial roles. Complications of MI can include heart failure, cardiogenic shock, and arrhythmias. Diagnosis of MI involves clinical evaluation, imaging studies, and biomarker testing. Treatment of MI includes reperfusion therapy, medical management, and cardiac rehabilitation. Reperfusion therapy, including thrombolytic therapy and primary percutaneous coronary intervention, is the cornerstone of treatment for ST-segment elevation MI. Medical management involves antiplatelet and anticoagulation therapy, as well as beta-blockers, while cardiac rehabilitation can help improve cardiovascular function and reduce the risk of further cardiac events. Prompt diagnosis and appropriate treatment are essential for improving outcomes and reducing morbidity and mortality associated with MI.