Arrhythmias in dilated cardiomyopathy.
Patients with dilated cardiomyopathies (DCM) face a significant burden of arrhythmias, including conduction defects such as atrioventricular block and interventricular delay in the form of left bundle branch block, resulting in altered electromechanical coupling that can exacerbate heart failure. Atrial fibrillation is common and carries an adverse prognosis. Ventricular arrhythmias and sudden cardiac death generally occur late in the disease course. Sustained monomorphic ventricular tachycardia accounts for most of the sustained ventricular arrhythmias in DCM. This article summarizes common forms of arrhythmias encountered in patients with DCM, and reviews the relevant electrophysiologic basis of these arrhythmias and their management.
['Kumar|Saurabh|S|', 'Stevenson|William G|WG|', 'John|Roy M|RM|']
D001145:Arrhythmias, Cardiac D002311:Cardiomyopathy, Dilated D017115:Catheter Ablation D006801:Humans
Dilated cardiomyopathy Atrioventricular block Atrial fibrillation Ventricular tachycardia Atrial flutter Catheter ablation Lamin A/C cardiomyopathy