Ablation lesion size correlates with pacing threshold: A physiological basis for use of pacing to assess ablation lesions

PACE - Pacing and Clinical Electrophysiology

Volumn 27, Issue 7, 2004, Pages 933-937

  Sapp, John L ^a   Soejima, Kyoko ^c   Cooper, Joshua M ^b   Epstein, Laurence M ^c   Stevenson, William G ^c  

^a DALHOUSIE UNIVERSITY   (Canada)

^b HOSPITAL OF THE UNIVERSITY OF PENNSYLVANIA   (United States)

^c BRIGHAM AND WOMEN S HOSPITAL   (United States)

Author keywords

Catheter ablation; Electrogram amplitude; Pacing threshold; Radiofrequency lesions; Virtual electrode

Indexed keywords

AMPLITUDE MODULATION; ANIMAL EXPERIMENT; ANIMAL MODEL; ARTICLE; CATHETER ABLATION; CONTROLLED STUDY; CORRELATION ANALYSIS; ELECTRODE; ELECTROGRAPHY; HEART ELECTROPHYSIOLOGY; HEART INJURY; HEART PACING; MALE; MODEL; NONHUMAN; SWINE; VIRTUAL REALITY;

ANIMALS; CARDIAC PACING, ARTIFICIAL; CATHETER ABLATION; ELECTROCARDIOGRAPHY; ELECTROPHYSIOLOGIC TECHNIQUES, CARDIAC; HEART VENTRICLES; MALE; SWINE;

EID: 3242801305     PISSN: 01478389     EISSN: None     Source Type: Journal    
DOI: 10.1111/j.1540-8159.2004.00561.x     Document Type: Article

References (13)

1. Wikswo JP Jr, Wisialowski TA, Altemeier WA, et al. Virtual cathode effects during stimulation of cardiac muscle: Two-dimensional in vivo experiments. Circ Res 1991; 68:513-530.
2. Avitall B, Khan M, Krum D, et al. Physics and engineering of transcatheter cardiac tissue ablation. J Am Coll Cardiol 1993; 22:921-932.
3. Haines D. The biophysics of radiofrequency catheter ablation in the heart: The importance of temperature monitoring. PACE 1993; 16:586-591.
4. Huang SK, Bharati S, Graham AR, et al. Closed chest catheter desiccation of the atrioventricular junction using radiofrequency energy - a new method of catheter ablation. J Am Coll Cardiol 1987; 9:349-358.
5. Delacretaz E, Soejima K, Brunckhorst CB, et al. Assessment of radiofrequency ablation effect from unipolar pacing threshold. PACE 2003; 26:1993-1996.
6. Meesman M, Marchlinski F. Effect of pacing current strength on indexes of myocardial activation in humans: Influence of chronic infarction and polarity of pacing. J Am Coll Cardiol 1990; 15:393-401.
7. Soejima K, Stevenson WG, Sapp JL, et al. The effect of pacing stimulus strength on the virtual electrode size: Implications for mapping and ablation. PACE 2002; 25:616.
8. van Rensburg H, Willems R, Holemans P, et al. Simultaneous creation and evaluation of linear radiofrequency lesions. J Interv Card Electrophysiol 2002; 6:215-224.
9. Liem LB, Pomeranz M, Riseling K, et al. Electrophysiological correlates of transmural linear ablation. PACE 2000; 23:40-46.
10. Jumrussirikul P, Atiga WL, Lardo AC, et al. Prospective comparison of lesions created using a multipolar microcatheter ablation system with those created using pullback approach with standard radiofrequency ablation in the canine atrium. PACE 2000; 23:203-213.
11. Soejima K, Stevenson WG, Maisel WH, et al. Electrically unexcitable scar mapping based on pacing threshold for identification of the reentry circuit isthmus: Feasibility for guiding ventricular tachycardia ablation. Circulation 2002; 106:1678-1683.
12. O'Donnell D, Bourke JP, Furniss SS. Progressive lengthening of the interval from pacing stimulus to surface ECG QRS onset during reduction in stimulus voltage - allows identification of the critical isthmus zone of postmyocardial infarction ventricular tachycardia during sinus rhythm mapping. PACE 2002; 25:544.
13. Soejima K, Stevenson WG, Sapp JL, et al. QRS morphology change during pace mapping with different pacing stimulus strength. Circulation 2002; 106:19.