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Multimodality Imaging of Sudden Cardiac Death and Acute Complications in Acute Coronary Syndrome

Journal

JOURNAL OF CLINICAL MEDICINE
Volume 11, Issue 19, Pages -

Publisher

MDPI
DOI: 10.3390/jcm11195663

Keywords

ischemic cardiomyopathy; acute myocardial infarction; cardiac arrhythmias; myocardial edema; late gadolinium enhancement; ventricular thrombus

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Sudden cardiac death is often due to cardiac arrhythmia, with CAD being a common underlying cause. Arrhythmic complications can occur in ACS patients, with ECG and echocardiography being useful for diagnosis. CMR can assess post-ACS function and complications.
Sudden cardiac death (SCD) is a potentially fatal event usually caused by a cardiac arrhythmia, which is often the result of coronary artery disease (CAD). Up to 80% of patients suffering from SCD have concomitant CAD. Arrhythmic complications may occur in patients with acute coronary syndrome (ACS) before admission, during revascularization procedures, and in hospital intensive care monitoring. In addition, about 20% of patients who survive cardiac arrest develop a transmural myocardial infarction (MI). Prevention of ACS can be evaluated in selected patients using cardiac computed tomography angiography (CCTA), while diagnosis can be depicted using electrocardiography (ECG), and complications can be evaluated with cardiac magnetic resonance (CMR) and echocardiography. CCTA can evaluate plaque, burden of disease, stenosis, and adverse plaque characteristics, in patients with chest pain. ECG and echocardiography are the first-line tests for ACS and are affordable and useful for diagnosis. CMR can evaluate function and the presence of complications after ACS, such as development of ventricular thrombus and presence of myocardial tissue characterization abnormalities that can be the substrate of ventricular arrhythmias.

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