Ablation of Ventricular Tachycardia in Patients with Ischemic Cardiomyopathy

Paul Garabelli; Stavros Stavrakis; Sunny S Po

doi:10.1016/j.ccep.2015.10.013

Ablation of Ventricular Tachycardia in Patients with Ischemic Cardiomyopathy

Card Electrophysiol Clin. 2016 Mar;8(1):121-9. doi: 10.1016/j.ccep.2015.10.013. Epub 2016 Jan 8.

Authors

Paul Garabelli¹, Stavros Stavrakis¹, Sunny S Po²

Affiliations

¹ Department of Medicine, Heart Rhythm Institute, University of Oklahoma Health Sciences Center, 1200 Everett Drive, Oklahoma City, OK 73104, USA.
² Department of Medicine, Heart Rhythm Institute, University of Oklahoma Health Sciences Center, 1200 Everett Drive, Oklahoma City, OK 73104, USA. Electronic address: sunny-po@ouhsc.edu.

PMID: 26920180
DOI: 10.1016/j.ccep.2015.10.013

Abstract

Ventricular tachycardias (VTs) occurring after prior myocardial infarction are usually caused by reentrant circuits formed by surviving myocardial bundles. Although part of the reentrant circuits may be located in the midmyocardium or epicardium, most of the VTs can be safely and successfully ablated by endocardial ablation targeting the late potentials/local abnormal ventricular activation, which are surrogates for the surviving myocardial bundles. A combination of activation, substrate, pace, and entrainment mapping, as well as the use of contact force catheters, further improves ablation success and safety.

Keywords: Ablation; Ischemic cardiomyopathy; Ventricular arrhythmia; Ventricular tachycardia.

Publication types

Case Reports
Review

MeSH terms

Aged
Algorithms
Catheter Ablation*
Electrocardiography
Humans
Male
Myocardial Ischemia / complications*
Tachycardia, Ventricular* / complications
Tachycardia, Ventricular* / diagnosis
Tachycardia, Ventricular* / physiopathology
Tachycardia, Ventricular* / surgery