The Utility of Coronary Revascularization to Reduce Ventricular Arrhythmias in Coronary Artery Disease Patients: A Systematic Review.

Ventricular arrhythmias (VA) are a major cause of morbidity and mortality in patients with coronary artery disease (CAD). Current guidelines recommend revascularization of significant CAD to improve survival in patients with ventricular fibrillation (VF), polymorphic ventricular tachycardia (VT), or those who are post-cardiac arrest. However, revascularization is not recommended for CAD patients with suspected scar-mediated monomorphic VT. There is a paucity of data detailing the utility of revascularization in reducing VA in CAD patients who do not present with acute coronary syndrome (ACS) and are not immediately post-cardiac arrest, which is the focus of this review. Medline, Scopus, and the Cochrane Central Register of Controlled Trials were systematically searched to identify relevant studies addressing this question. Studies that included patients presenting with ACS or those who were immediately post-cardiac arrest at the time of revascularization were excluded. In total, five studies comprising 2663 patients were reviewed.