This international consensus statement of the European Heart Rhythm Association (EHRA), Heart Rhythm Society (HRS), and Asia Pacific Heart Rhythm Society is intended to provide clinical guidance for the management of patients with ventricular arrhythmias (VAs). It summarizes the consensus of the international writing group members and is based on a systematic review of the medical literature regarding VAs. The spectrum of VAs ranges from those that are benign and asymptomatic to those that produce severe symptoms including sudden cardiac death (SCD). In addition, many patients exhibit multiple forms of VAs over time. Thus, clinicians who encounter patients with VAs face important questions regarding which diagnostic tests are needed and which treatments, if any, should be offered. The Writing Committee recognizes that the manner in which patients present with VAs varies greatly. The electrocardiographic recording of a VA may be the first and only manifestation of a cardiac abnormality; alternatively, patients with a prior diagnosis of cardiac disease may later develop these arrhythmias. Thus, the specific arrhythmia and the underlying structural heart disease (SHD), if any, may have important prognostic and treatment implications. This document addresses the indications for diagnostic testing, the present state of prognostic risk stratification, and the treatment strategies that have been demonstrated to improve the clinical outcome of patients with VAs. In addition, this document includes recommendations for referral of patients to centres with specialized expertise in the management of arrhythmias. Wherever appropriate, the reader is referred to other publications regarding the indications for implantable cardioverter-defibrillator (ICD) implantation,1,2 catheter ablation,3 inherited arrhythmia syndromes,4,4a,5 congenital heart disease (CHD),6 the use of amiodarone,7 and the management of patient with ICD shocks,8 syncope,9 or those nearing end of life.10 The consensus recommendations in this document …