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Defining the substrate for ventricular tachycardia ablation: The impact of rhythm at the time of mapping
- Source :
- Indian Pacing and Electrophysiology Journal, Vol 20, Iss 4, Pp 147-153 (2020)
- Publication Year :
- 2020
- Publisher :
- Elsevier, 2020.
-
Abstract
- Background: Voltage mapping is critical to define substrate during ablation. In ventricular tachycardia, abnormal potentials may be targets. However, wavefront of activation could impact local signal characteristics. This may be particularly true when comparing sinus rhythm versus paced rhythms. We sought to determine how activation wavefront impacts electrogram characteristics. Methods: Patients with ischemic cardiomyopathy, ventricular tachycardia, and without fascicular or bundle branch block were included. Point by point mapping was done and at each point, one was obtained during an atrial paced rhythm and one during a right ventricular paced rhythm. Signals were adjudicated after ablation to define late potentials, fractionated potentials, and quantify local voltage. Areas of abnormal voltage (defined as
Details
- Language :
- English
- ISSN :
- 09726292
- Volume :
- 20
- Issue :
- 4
- Database :
- Directory of Open Access Journals
- Journal :
- Indian Pacing and Electrophysiology Journal
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.0e45c670619a4c2f9ac214f7afe7afae
- Document Type :
- article
- Full Text :
- https://doi.org/10.1016/j.ipej.2020.03.005