Premature ventricular contrac- tion-induced cardiomyopathy: a treatable condition. Circ Arrhythm Electrophysiol. 2012;5:229 36. S9-4. Singh SN, Fletcher RD, Fisher SG, et al. Amiodarone in patients with congestive heart failure and asymptomatic ventricular arrhythmia. Survival Trial of Antiarrhythmic Therapy in Congestive Heart Failure. N Engl J Med. 1995;333:77 82. S9-5. Baman TS, Lange DC, Ilg KJ, et al. Relationship between burden of premature ventricular complexes and left ventricular function. Heart Rhythm. 2010;7:865 9. S9-6. Ban JE, Park HC, Park JS, et al. Electrocardiographic and electrophys- iological characteristics of premature ventricular complexes associ- ated with left ventricular dysfunction in patients without structural heart disease. Europace. 2013;15:735 41. S9-7. Bogun F, Crawford T, Reich S, et al. Radiofrequency ablation of frequent, idiopathic premature ventricular complexes: compari- son with a control group without intervention. Heart Rhythm. 2007;4:863 7. S9-8. Carballeira Pol L, Deyell MW, Frankel DS, et al. Ventricular prema- ture depolarization QRS duration as a new marker of risk for the development of ventricular premature depolarization-induced car- diomyopathy. Heart Rhythm. 2014;11:299 306. S9-9. Del Carpio Munoz F, Syed FF, Noheria A, et al. Characteristics of premature ventricular complexes as correlates of reduced left ven- tricular systolic function: study of the burden, duration, coupling interval, morphology and site of origin of PVCs. J Cardiovasc Electrophysiol. 2011;22:791 8. S9-10. Deyell MW, Park KM, Han Y, et al. Predictors of recovery of left ven- tricular dysfunction after ablation of frequent ventricular premature depolarizations. Heart Rhythm. 2012;9:1465 72. S9-11. Hamon D, Blaye-Felice MS, Bradfield JS, et al. A new combined parameter to predict premature ventricular complexes induced CLINICAL STATEMENTS AND GUIDELINES cardiomyopathy: impact and recognition of epicardial origin. J Cardiovasc Electrophysiol. 2016;27:709 17. S9-12. Hasdemir C, Ulucan C, Yavuzgil O, et al. 