|
| HOME | SUBSCRIPTIONS | CURRENT ISSUE | PAST ISSUES | CARDIOSOURCE | SEARCH | HELP | FEEDBACK |
|
|
|
|||||||||
|
|||||||||||
|
J Am Coll Cardiol, 1991; 18:1753-1758 © 1991 by the American College of Cardiology Foundation |
University Hospital, University of British Columbia, Department of Medicine, Vancouver, Canada.
Radiofrequency current was introduced as an alternative energy source for transcatheter ablation of cardiac arrhythmias to avoid the complications associated with direct current shocks. Initial use of radiofrequency current for complete ablation of the atrioventricular (AV) node yielded only moderate success rates, presumably because of the small size of electrodes and difficulty in localizing the AV node. The use of a larger 4-mm tip electrode for delivery of radiofrequency current and a method to better localize the AV node were prospectively studied in 32 patients undergoing catheter ablation of the AV node. There were 21 men and 11 women with a mean age of 62 +/- 12 years. Complete AV block was achieved immediately in 31 patients (97%) and it persisted in 28 patients (88%) during a mean follow-up period of 12 +/- 6 months. Three patients who had return of AV condition required no drug therapy for control of ventricular rate during atrial fibrillation. The number of radiofrequency pulses used to achieve complete AV block ranged from 1 to 5 (mean 1.9 +/- 1.1). In greater than 50% of the cases, only one radiofrequency pulse was required. The mean power and duration of radiofrequency pulses were 21.2 +/- 4.5 W and 33 +/- 15 s, respectively. All patients developed a stable junctional escape rhythm within 45 min of successful ablation. The QRS configuration was unchanged in 30 patients. One patient had a new right bundle branch block after ablation. There were no complications related to the ablation procedure.(ABSTRACT TRUNCATED AT 250 WORDS)
This article has been cited by other articles:
|
|
 |
|
  I. G. Diab and M. J. Earley Ablation of supraventricular tachycardia in a 96 year old Age Ageing, May 1, 2007; 36(3): 346 - 348. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 K J Lipscomb, A M Zaidi, A P Fitzpatrick, and D LEFROY Slow pathway modification for atrioventricular node re-entrant tachycardia: fast junctional tachycardia predicts adverse prognosis Heart, January 1, 2001; 85(1): 44 - 47. [Abstract] [Full Text]
|
|
|
|
 |
|
 E. S. Zado, D. J. Callans, C. D. Gottlieb, S. P. Kutalek, S. L. Wilbur, F. L. Samuels, S. E. Hessen, C. M. Movsowitz, J. M. Fontaine, S. E. Kimmel, et al. Efficacy and safety of catheter ablation in octogenarians J. Am. Coll. Cardiol., February 1, 2000; 35(2): 458 - 462. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
G A Ng, W Martin, and A C Rankin Imaging of adenosine bolus transit following intravenous administration: insights into antiarrhythmic efficacy Heart, August 1, 1999; 82(2): 163 - 169. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C.-P. Lau, H.-F. Tse, and G. M. Ayers Defibrillation-guided radiofrequency ablation of atrial fibrillation secondary to an atrial focus J. Am. Coll. Cardiol., April 1, 1999; 33(5): 1217 - 1226. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 S. Levy Atrioventricular junctional ablation and pacing for paroxysmal atrial fibrillation: the Barcelona recommendations Europace, January 1, 1999; 1(1): 2 - 4. [PDF]
|
|
|
|
|
|
M. Brignole, M. Gammage, L. Jordaens, R. Sutton, and on behalf of the Barcelona Discussion Group Report of a study group on ablate and pace therapy for paroxysmal atrial fibrillation Europace, January 1, 1999; 1(1): 8 - 13. [Abstract] [PDF]
|
|
|
|
|
|
M BRIGNOLE Ablate and pace: a pragmatic approach to paroxysmal atrial fibrillation not controlled by antiarrhythmic drugs Heart, June 1, 1998; 79(6): 531 - 533. [Full Text]
|
|
|
|
|
|
H J Marshall, Z I Harris, M J Griffith, and M D Gammage Atrioventricular nodal ablation and implantation of mode switching dual chamber pacemakers: effective treatment for drug refractory paroxysmal atrial fibrillation Heart, June 1, 1998; 79(6): 543 - 547. [Abstract] [Full Text]
|
|
|
|
 |
|
 A. D. Krahn, G. J. Klein, R. Yee, M. N. Basta, and J. K. Lee Progressive Anterior Ablation in the Coronary Sinus Region : Evidence to Support the Presence of a `Slow Pathway' Input in Normal Patients? Circulation, November 18, 1997; 96(10): 3477 - 3483. [Abstract] [Full Text]
|
|
|
|
 |
|
 S. G. Kim, V. Sompalli, A. Rameneni, M. K. Gadde, M. Pamidi, R. Pathapati, K. J. Ferrick, J. Gross, U. Ben-Zur, S. Furman, et al. Symptomatic Improvement After AV Nodal Ablation and Pacemaker Implantation for Refractory Atrial Fibrillation and Atrial Flutter Angiology, November 1, 1997; 48(11): 933 - 938. [Abstract] [PDF]
|
|
|
|
|
|
S.-A. Chen, S.-H. Lee, C.-E. Chiang, C.-T. Tai, T.-J. Wu, C.-C. Cheng, Z.-C. Wen, C.-W. Chiou, K.-C. Ueng, and M.-S. Chang Electrophysiological Mechanisms in Successful Radiofrequency Catheter Modification of Atrioventricular Junction for Patients With Medically Refractory Paroxysmal Atrial Fibrillation Circulation, May 1, 1996; 93(9): 1690 - 1701. [Abstract] [Full Text]
|
|
|
|
|
|
S. Nath, J. P. DiMarco, J. P. Mounsey, J. H. Lobban, and D. E. Haines Correlation of Temperature and Pathophysiological Effect During Radiofrequency Catheter Ablation of the AV Junction Circulation, September 1, 1995; 92(5): 1188 - 1192. [Abstract] [Full Text]
|
|
|
|
|
|
J. F. Alison, J. A. Yeung-Lai-Wah, M. Schulzer, and C. R. Kerr Characterization of Junctional Rhythm After Atrioventricular Node Ablation Circulation, January 1, 1995; 91(1): 84 - 90. [Abstract] [Full Text]
|
|
|
|
 |
|
 B. D. Williamson, K. C. Man, E. Daoud, M. Niebauer, S. A. Strickberger, and F. Morady Radiofrequency Catheter Modification of Atrioventricular Conduction to Control the Ventricular Rate during Atrial Fibrillation N. Engl. J. Med., October 6, 1994; 331(14): 910 - 917. [Abstract] [Full Text]
|
|
| HOME | SUBSCRIPTIONS | CURRENT ISSUE | PAST ISSUES | CARDIOSOURCE | SEARCH | HELP | FEEDBACK |
