Research Progress on Coronary Artery Injury and Myocardial Ischemia in Multisystem Inflammatory Syndrome in Children

Multisystem inflammatory syndrome in children (MIS-C) is a severe systemic inflammatory complication triggered by prior SARS-CoV-2 infection. It predominantly affects the cardiovascular system, and coronary artery injury, myocardial dysfunction, and myocardial ischemia are closely associated with disease severity and clinical outcomes. This article reviews the immunopathological characteristics and clinical manifestations of MIS-C-related coronary artery lesions, including coronary artery dilation and aneurysm formation, as well as the key pathophysiological mechanisms leading to myocardial ischemia. Based on recent clinical and translational research, we summarize current approaches to diagnosis, risk stratification, acute medical management, and long-term follow-up strategies. By synthesizing updated evidence, this review aims to provide theoretical support and practical clinical guidance for the early identification, timely intervention, and optimized management of affected children, ultimately improving their long-term cardiovascular prognosis.