Author + information
- Received March 30, 2018
- Revision received June 14, 2018
- Accepted June 15, 2018
- Published online August 29, 2018.
- Katja Zeppenfeld, MD, PhD∗ ()
- ↵∗Address for correspondence:
Dr. Katja Zeppenfeld, Department of Cardiology, Leiden University Medical Center, P.O. Box 9600, 2300 RC Leiden, the Netherlands.
Catheter ablation is being increasingly performed as adjunctive treatment to prevent recurrent implantable cardioverter-defibrillator therapies in patients with nonischemic cardiomyopathy and ventricular tachycardia (VT). In the context of VT ablation, nonischemic cardiomyopathy usually refers to dilated cardiomyopathy (DCM) as one morphological phenotype. Over the past decades, progress has been made to better characterize distinct subtypes and to differentiate between causes of DCM, which has important practical and prognostic implications. The goal of this review is to summarize available data on VT ablation in patients with DCM and, more specifically, review procedural and outcome data in specific etiologies and substrate location. It will focus on our current understanding of nonischemic scars, as well as the value of multimodal imaging, image integration, and electroanatomic mapping for substrate identification, procedural planning, and ablation. In addition, recent findings from whole human heart histology of patients with DCM and VT and their potential implications for imaging and mapping will be discussed.
Dr. Zeppenfeld has reported that she has no relationships relevant to the contents of this paper to disclose.
The author attests she is in compliance with human studies committees and animal welfare regulations of the authors’ institutions and Food and Drug Administration guidelines, including patient consent where appropriate. For more information, visit the JACC: Clinical Electrophysiology author instructions page.
- Received March 30, 2018.
- Revision received June 14, 2018.
- Accepted June 15, 2018.
- 2018 American College of Cardiology Foundation
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