Cited by 69Cardiac Arrhythmias and TreatmentsCardiac electrophysiology and arrhythmiasCardiac pacing and defibrillation studies

Catheter ablation of sinoatrial node reentrant tachycardia

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Sanders, William E., Sorrentino, Robert A., Greenfield, Ruth Ann, Shenasa, Hossein, Hamer, Mark E., Wharton, J.Marcus·1994·Journal of the American College of Cardiology

Abstract

Objectives This study evaluates 1) the safety and efficacy of catheter delivery of radiofrequency current to eliminate sustained sinoatrial node reentrant tachycardia; 2) the incidence of sinoatrial node reentrant tachycardia in the current group of patients undergoing electrophysiologic study for paroxysmal supraventricular tachycardia; and 3) the association of sinoatrial node reentrant tachycardia with other tachyarrhythmias.Background Sustained sinoatrial node reentrant tachycardia is an uncommon cause of paroxysmal supraventricular tachycardia that is reported to occur infrequently in conjunction with other arrhythmias. Although pharmacologic and surgical therapies are available, there is limited information with regard to catheter ablation of sinoatrial node reentrant tachycardia.Methods Ten patients with sustained sinoatrial node reentrant tachycardia underwent electrophysiologic study and radiofrequency current ablation. Patients were followed up for 9.2 +/- 6.0 months.Results Of 343 consecutive patients referred for electrophysiologic evaluation of paroxysmal supraventricular tachycardia, 11 (3.2%) were found to have inducible sustained sinoatrial node reentrant tachycardia. Nine of the 11 patients had other associated arrhythmias, including atrioventricular (AV) node reentrant tachycardia (6 patients), AV reciprocating tachycardia (2 patients), ectopic atrial tachycardia (2 patients) and bundle branch reentrant tachycardia (1 patient). In 10 patients, direct ablation of sinoatrial node reentrant tachycardia was attempted and was successful in all (confidence interval for failure 0-0.26). Sinoatrial node reentrant tachycardia was eliminated with a median of four radiofrequency current applications (range 1 to 10) at 20 to 30 W. Successful ablation site characteristics during sinoatrial node reentrant tachycardia included 1) atrial activation > or = 35 ms (mean 44 +/- 8 ms) before the onset of the surface P wave, 2) atrial activation > or = 20 ms (mean 28 +/- 6 ms) before the onset of high right atrial activation, and 3) significantly prolonged and fractionated electrograms (mean duration 87 +/- 21 ms). No complications were encountered, and there have been no recurrences of sinoatrial node reentrant tachycardia.Conclusions Sinoatrial node reentrant tachycardia may be effectively and safely treated with radiofrequency current ablation at the site of earliest atrial activation.

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  1. Han J, Malozzi MA, Moe SK . Sinoatrial reciprocation in the i :olated rabbit heart. Circ Res 1968 ;22:35"2 .
  2. L In R, Guirvation GM, Gw*a ME et al . Refractory paroxysmal sinus twhycardia: numagement by subtotal right atrigi exclusion . J Am 00 Cardiol 1964 ;3 :400-4 .
  3. Do Paola AA, Horowitz LN, Vattimo AC, ct al . Treatment of chronic non paroxysmal sinus tachycardia . Am J Cardiol t992 ;70 :128-30.

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Authors
Sanders, W. E., Sorrentino, R. A., Greenfield, R. A., Shenasa, H., Hamer, M. E., & Wharton, J. M.
Affiliations
Duke University (US)
Corresponding author
Wharton, J.Marcus
Venue
Journal of the American College of Cardiology
Publisher
Elsevier BV
Published
1994-03
Volume
23
Issue
4
Pages
926-934
ISSN
0735-1097 (ISSN-L)
OpenAlex
W1986919313
Cited by
69
References
31
Citations by year
2026: 1 · 2025: 2 · 2022: 2 · 2021: 2 · 2020: 2 · 2019: 3 · 2018: 1 · 2016: 3 · 2015: 4 · 2014: 1 · 2013: 1
FWCI
3.47
Type
journal article
Language
en
Open access
Locations
  • Journal of the American College of Cardiology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5p50hl017670-19, HL-17670)
  • National Heart, Lung, and Blood Institute (HL17670)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Arrhythmias and Treatments
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac electrophysiology and arrhythmias
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac pacing and defibrillation studies
Keywords
catheter ablation, radiofrequency ablation, paroxysmal supraventricular tachycardia, atrioventricular nodal reentrant tachycardia, atrioventricular reciprocating tachycardia, ectopic atrial tachycardia, electrophysiological study
MeSH terms
Adult, Electrocardiography, Female, Humans, Male, Middle Aged, Sinoatrial Node, Tachycardia, Sinoatrial Nodal Reentry, Tachycardia, Supraventricular, Incidence, Catheter Ablation

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