Cited by 75Cardiac Arrhythmias and TreatmentsCongenital Heart Disease StudiesCardiac electrophysiology and arrhythmias

Mechanism and ablation of arrhythmia following total cavopulmonary connection

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Correa, Rafael, Sherwin, Elizabeth D., Kovach, Joshua, Mah, Douglas Y., Alexander, Mark E., Cecchin, Frank, Walsh, Edward P., Triedman, John K. +1 more·2015·Circulation Arrhythmia and Electrophysiology

Abstract

BACKGROUND: The ability to identify and ablate different arrhythmia mechanisms after the total cavopulmonary connection has not been studied in detail. METHODS AND RESULTS: After obtaining Institutional Review Board approval according to institutional guidelines, consecutive patients after a total cavopulmonary connection undergoing electrophysiology study over a 6-year period were included (2006-2012). Arrhythmia mechanism was determined, and the procedural outcome was defined as complete, partial success, or failure. A 12-point arrhythmia severity score was calculated for each patient at baseline and on follow-up. Fifty-seven procedures were performed on 52 patients (18.4 ± 11.8 years; 53.0 ± 27.2 kg). Access to the pulmonary venous atrium was necessary in 33 procedures, via fenestration (16) or transbaffle puncture (17), and in 2 cases, an additional retrograde approach was used. In total, 80 arrhythmias were identified in 47 cases: macroreentrant (n = 25) or focal atrial tachycardia (n = 8), atrioventricular nodal reentry tachycardia (n = 13), reentry via an accessory pathway (n = 4) or via twin atrioventricular nodes (n = 4), ventricular tachycardia (n = 5), and undefined atrial tachycardia (n = 21). Procedural outcome in 32 patients who underwent ablation was complete success (n = 25), partial success (n = 3), failure (n = 3), or empirical ablation (n = 1). After successful ablation, there was a significant decrease in arrhythmia score over 18.2 (4-32) months follow-up, with a sustained trend even in the face of arrhythmia recurrence (50%). CONCLUSIONS: Arrhythmia mechanism post total cavopulmonary connection is highly varied, encompassing simple and more complex substrates, documentation of which facilitates a strategic approach to invasive arrhythmia management. Despite the anatomic limitations, successful and clinically meaningful ablation is possible.

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Crossref · 10.1161/circep.114.001758

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  1. Epstein MR, Saul JP, Weindling SN, Triedman JK, Walsh EP. Atrioventricular reciprocating pu pu pu pulm lm lm lmon on on onar ar ar ary y y y ar ar ar arte te te tery ry ry S S Su Surg rg. m Y, Iyengar AJ, Cochrane AD, Grigg LE, Ramsay JM, Wheaton GR, Penny DJ P son EA, Lu M, Berul CI, Etheridge SP, Idriss SF, Margossian R, Reed JH, Praka A, Vetter VL, Blaufox AD, Pediatric Heart Network I. Arrhythmias in a contemp o J l 2010;56:890 896

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Authors
Correa, R., Sherwin, E. D., Kovach, J., Mah, D. Y., Alexander, M. E., Cecchin, F., Walsh, E. P., Triedman, J. K., & Abrams, D. J.
Affiliations
Boston Children's Hospital (US)
Corresponding author
  • Sherwin, Elizabeth D.
  • Kovach, Joshua
Venue
Circulation Arrhythmia and Electrophysiology
Published
2015-04
Volume
8
Issue
2
Pages
318-325
ISSN
  • 1941-3084 (ISSN-L)
  • 1941-3149
OpenAlex
W1976257944
Cited by
75
References
22
Citations by year
2026: 4 · 2025: 8 · 2024: 2 · 2023: 4 · 2022: 7 · 2021: 3 · 2020: 4 · 2019: 5 · 2018: 9 · 2017: 16 · 2016: 7 · 2015: 6
FWCI
9.21
Type
journal article
Language
en
Open access
Locations
  • Circulation Arrhythmia and Electrophysiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Arrhythmias and Treatments
  • Health Sciences › Medicine › Epidemiology › Congenital Heart Disease Studies
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac electrophysiology and arrhythmias
Keywords
total cavopulmonary connection, congenital heart disease, arrhythmia mechanisms, catheter ablation, atrial tachycardia, atrioventricular nodal reentrant tachycardia, ventricular tachycardia, macroreentrant tachycardia, accessory pathway, arrhythmia recurrence
MeSH terms
Action Potentials, Adolescent, Adult, Arrhythmias, Cardiac, Child, Female, Heart Defects, Congenital, Heart Rate, Humans, Male, Predictive Value of Tests, Recurrence, Retrospective Studies, Risk Factors, Severity of Illness Index, Time Factors, Treatment Outcome, Catheter Ablation, Heart Bypass, Right, Electrophysiologic Techniques, Cardiac, Young Adult

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