Entrainment Mapping.
Mapping during ventricular tachycardia (VT) aims to elucidate mechanism, describe myocardial propagation, and identify the origin and critical regions of VT that can be targeted for ablation, most commonly with radiofrequency ablation. Most VTs in structural heart disease are due to macro-reentry in and around scar. A combination of mapping techniques, including mapping to identify the arrhythmia substrate, activation sequence mapping, pace-mapping, and entrainment mapping, may be used to identify putative ablation targets. This review describes the principles of entrainment mapping as it pertains to catheter ablation of scar-related VT.
Arrhythmia Service, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA.
Saurabh
S
Kumar
Arrhythmia Service, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA.
Usha B
UB
Tedrow
Arrhythmia Service, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA. Electronic address: wstevenson@partners.org.
William G
WG
Stevenson
D002304:Cardiac Pacing, Artificial; D017115:Catheter Ablation; D004562:Electrocardiography / Q000379:methods*; D006329:Heart Conduction System / Q000503:physiopathology; D006801:Humans; D009203:Myocardial Infarction / Q000503:physiopathology; D017180:Tachycardia, Ventricular / Q000175:diagnosis / Q000473:pathology / Q000503:physiopathology / Q000601:surgery
Catheter ablation; Concealed entrainment; Entrainment mapping; Fusion; Postinfarction; Resetting; Ventricular tachycardia