Cited by 71Cardiac electrophysiology and arrhythmiasCardiac Arrhythmias and TreatmentsCardiac pacing and defibrillation studies

Atrial Arrhythmias in long-QT syndrome under daily life conditions: a nested case control study

ZELLERHOFF, STEPHAN, PISTULLI, RUDIN, MÖNNIG, GEROLD, HINTERSEER, MARTIN, BECKMANN, BRITT‐MARIA, KÖBE, JULIA, STEINBECK, GERHARD, KÄÄB, STEFAN +7 more·2009·Journal of Cardiovascular Electrophysiology

Abstract

BACKGROUND: The long-QT syndromes (LQTS) are inherited electrical cardiomyopathies characterized by prolonged ventricular repolarization and ventricular arrhythmias. Several genetic reports have associated defects in LQTS-causing genes with atrial fibrillation (AF). We therefore studied whether atrial arrhythmias occur in patients with LQTS under daily-life conditions. METHODS: We systematically assessed atrial arrhythmias in LQTS patients and matched controls using implanted defibrillators or pacemakers as monitors of atrial rhythm in a nested case-control study. Twenty-one LQTS patients (3 male; 39 +/- 18 years old; 18 on beta blocker, ICD therapy duration 6.3 +/- 2.7 years; 4 LQT1, 6 LQT2, 2 LQT3) were matched to 21 control subjects (13 male; 50 +/- 19 years old; 3 on beta blocker; pacemaker therapy duration 8.5 +/- 5.5 years; 19 higher-degree AV block, 2 others). LQTS patients were identified by a systematic search of the LQTS patient databases in Münster and Munich. RESULTS: One-third (7 of 21) of the LQTS patients developed self-terminating atrial arrhythmias (atrial cycle lengths <250 ms). Only one control patient developed a single episode of postoperative AF (P < 0.05 vs LQTS). CONCLUSIONS: LQTS patients at high risk for ventricular arrhythmias may develop short-lasting atrial arrhythmias under daily-life conditions, suggesting that prolonged atrial repolarization may contribute to the initiation of AF.

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Crossref · 10.1111/j.1540-8167.2008.01339.x

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Authors
ZELLERHOFF, S., PISTULLI, R., MÖNNIG, G., HINTERSEER, M., BECKMANN, B., KÖBE, J., STEINBECK, G., KÄÄB, S., HAVERKAMP, W., FABRITZ, L., GRADAUS, R., BREITHARDT, G., SCHULZE‐BAHR, E., BÖCKER, D., & KIRCHHOF, P.
Affiliations
  • University of Münster (DE)
  • Ludwig-Maximilians-Universität München (DE)
  • Atrial Fibrillation NETwork (DE)
  • Charité – Universitätsmedizin Berlin (DE)
Venue
Journal of Cardiovascular Electrophysiology
Publisher
Wiley
Published
2009-03-23
Volume
20
Issue
4
Pages
401-407
ISSN
  • 1045-3873 (ISSN-L)
  • 1540-8167
OpenAlex
W2046450194
Cited by
71
References
33
Citations by year
2026: 3 · 2025: 1 · 2024: 4 · 2023: 4 · 2021: 5 · 2020: 5 · 2019: 1 · 2018: 5 · 2017: 4 · 2016: 7 · 2015: 3 · 2014: 4 · 2013: 4 · 2012: 6
FWCI
3.64
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Cardiovascular Electrophysiology (publishedVersion)
  • PubMed (publishedVersion)
  • University of Birmingham Research Portal (University of Birmingham) (submittedVersion)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac electrophysiology and arrhythmias
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Arrhythmias and Treatments
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac pacing and defibrillation studies
Keywords
long QT syndrome, atrial arrhythmias, atrial fibrillation, atrial repolarization, LQT1, long QT syndrome type 2, long QT syndrome type 3, ventricular arrhythmia risk
MeSH terms
Activities of Daily Living, Adolescent, Adrenergic beta-Antagonists, Adult, Aged, Aged, 80 and over, Atrial Fibrillation, Child, Electrocardiography, Female, Germany, Humans, Long QT Syndrome, Male, Middle Aged, Pacemaker, Artificial, Time Factors, Case-Control Studies, Treatment Outcome, Defibrillators, Implantable, Young Adult

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