Arrhythmias & electrophysiology

Dronedarone Versus Sotalol in Antiarrhythmic Drug–Naive Veterans With Atrial Fibrillation

Circ Arrhythm ElectrophysiolPublished Retrospective cohort study

Authors' conclusion

Dronedarone, compared with sotalol, was associated with a lower risk of ventricular proarrhythmic events and conduction disorders while having no difference in risk of incident cardiovascular hospitalization and mortality.

Study context

Population
Antiarrhythmic drug-naive veterans with AF prescribed dronedarone or sotalol in 2012 or later, without conduction disease, pacemaker/ICD, ventricular arrhythmia, cancer, renal failure, liver disease or HFmatched cohort n = 6212
Participants
11,296 veterans
Exposure
Dronedarone vs sotalol
  • Dronedaronen = 3,106
  • Sotaloln = 3,106reference
Outcome
CV hospitalization and all-cause mortality
Methodological detailspropensity-score matched, Falsification analyses with nonplausible outcomes were not significant
  • Propensity-score matched
  • Falsification analyses with nonplausible outcomes were not significant

Main finding

As reported in the abstract

Dronedarone vs SotalolHazard ratio (95% CI)
CV hospitalization
1.03(0.88–1.21)
All-cause mortality
0.89(0.68–1.16)

Observational data: associations, not effects.

Further findings

Mean

OutcomeDronedaroneSotalol
Baseline LVEF55 (SD 11)58 (SD 10)

Safety

OutcomeHR (95% CI)
Ventricular proarrhythmic events and symptomatic bradycardiaDronedaronevs SotalolVentricular proarrhythmic events0.53 (0.38–0.74)
Ventricular proarrhythmic events and symptomatic bradycardiaDronedaronevs SotalolSymptomatic bradycardia0.56 (0.37–0.87)

Original publication

Dronedarone Versus Sotalol in Antiarrhythmic Drug–Naive Veterans With Atrial Fibrillation. Circ Arrhythm Electrophysiol. Published 24 July 2023. doi:10.1161/circep.123.011893

Composed by AI from the published abstract and checked against it. How Briefs are made →

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