Cited by 65Atrial Fibrillation Management and OutcomesCardiac Arrhythmias and TreatmentsCardiac pacing and defibrillation studies

Maintenance of sinus rhythm with metoprolol CR initiated before cardioversion and repeated cardioversion of atrial fibrillation: a randomized double-blind placebo-controlled study

Nergardh, A. K, Rosenqvist, M., Nordlander, R., Frick, M.·2007·European Heart Journal

Abstract

AIMS: To assess the effect of metoprolol in combination with repeated cardioversion on maintenance of sinus rhythm (SR). METHODS AND RESULTS: Consecutive outpatients with persistent atrial fibrillation (AF) were randomized to treatment with metoprolol CR or placebo in a double-blind fashion. Study treatment was started at least one week before direct current (DC) cardioversion. Patients were followed once a week during the first 6 weeks after cardioversion. In case of relapse during this period, a second cardioversion was performed. Total treatment time was 6 months. A total of 168 patients were randomized to metoprolol (n = 83) or placebo (n = 85). The dose of study treatment at cardioversion was 169 +/- 47 mg in the metoprolol group and 180 +/- 40 mg in the placebo group (P = 0.12). In an intention-to-treat analysis, 46 patients (55%) in the metoprolol group and 34 patients (40%) in the placebo group (P = 0.04) had SR 1 week after cardioversion, and 38 patients (46%) in the metoprolol group compared with 22 patients (26%) in the placebo group had SR after 6 months (P < 0.01). CONCLUSION: A treatment strategy of metoprolol CR started before cardioversion in combination with prompt second cardioversion in case of early relapse (1-6 weeks) significantly increases the proportion of patients in SR during six months of follow-up.

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Crossref · 10.1093/eurheartj/ehl544

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Authors
Nergardh, A. K., Rosenqvist, M., Nordlander, R., & Frick, M.
Affiliations
Karolinska Institutet (SE)
Venue
European Heart Journal
Published
2007-06-01
Volume
28
Issue
11
Pages
1351-1357
ISSN
  • 0195-668X (ISSN-L)
  • 1522-9645
OpenAlex
W2136795635
Cited by
65
References
29
Citations by year
2026: 1 · 2025: 3 · 2024: 3 · 2023: 6 · 2022: 6 · 2021: 5 · 2020: 2 · 2019: 6 · 2018: 3 · 2017: 4 · 2016: 3 · 2015: 3 · 2014: 5 · 2013: 5 · 2012: 5
FWCI
0.70
Type
journal article
Language
en
Open access
closed
Locations
  • European Heart Journal (publishedVersion)
  • PubMed (publishedVersion)
  • HighWire Press Open Archive (submittedVersion)
Funders
Hjärt-Lungfonden
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Atrial Fibrillation Management and Outcomes
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Arrhythmias and Treatments
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac pacing and defibrillation studies
Keywords
metoprolol, atrial fibrillation, cardioversion, sinus rhythm maintenance, atrial fibrillation recurrence, persistent atrial fibrillation, antiarrhythmic therapy
MeSH terms
Aged, Anti-Arrhythmia Agents, Atrial Fibrillation, Combined Modality Therapy, Double-Blind Method, Electric Countershock, Female, Humans, Male, Metoprolol, Recurrence, Treatment Outcome, Retreatment

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