Impact of timing of recurrence following catheter ablation of scar‐related ventricular tachycardia on subsequent mortality

Abstract

Timing of VT recurrence following CA of scar-related VT impacts subsequent risk of mortality. Patients experiencing VT recurrence within 1-6 months from the procedure are at particularly high risk. These data support the importance of intense postablation monitoring for at least 6 months after the procedure to identify patients with early VT recurrence who may benefit from additional therapeutic interventions to improve outcomes.

Arrhythmias in Dilated Cardiomyopathy: Diagnosis and Treatment

“…Radiofrequency CA has proven to be highly effective in controlling VT compared to AADs. However, a clear mortality benefit related to CA has never been reproduced [50,[58][59][60]. Outcomes after CA of VT in the setting of DCM are heterogeneous and generally poorer compared to ischemic cardiomyopathy (Table 10.2).…”

Identifying Risk and Management of Acute Haemodynamic Decompensation During Catheter Ablation of Ventricular Tachycardia

“…Structural and functional changes related to advanced HF, such as progressive myocardial fibrosis, adrenergic hyperactivity, mechanical and electrical remodelling, and metabolic dysregulation, all contribute to the genesis and maintenance of VT, which may occur in up to 30 % of these patients. 5 Moreover, indicators of advanced HF, such as very low ejection fraction and advanced New York Heart Association (NYHA) functional class, have been associated with an increased rate of periprocedural complications, VT recurrence and mortality in patients undergoing CA of VT. [6][7][8][9] Ventricular arrhythmias (VAs) may worsen HF status, increasing mortality and hospitalisations. 5,7 In this setting, pre-procedural risk stratification to identify high-risk patients can allow for preprocedural planning and optimisation of overall clinical status before the procedure, improving patient safety and post-procedural outcomes.…”