Arrhythmias & electrophysiology

Time to benefit and harm of direct oral anticoagulants in device-detected atrial fibrillation: A pooled analysis of the NOAH-AFNET 6 and ARTESiA trials

Heart RhythmPublished Pooled analysis of randomised trials

Pooled result · StrokeResult — go to the resultHazard ratio 0.67 95% CI 0.50–0.90

Authors' conclusion

In elderly patients with low durations of DD-AFib, DOACs result in a delayed and restricted stroke-preventive benefit while posing an early-onset bleeding risk.

Study context

Population
Adults with device-detected AF (mean age >75 years; median atrial high-rate episode duration 1.5 to 2.8 hours)
Participants
6,548 adults2 RCTs
Comparison
Direct oral anticoagulants (DOACs) vs no DOAC in device-detected AF
Outcome
Time to first stroke (efficacy); time to first major bleeding (safety)
Methodological detailsreconstructed patient-level data, Weibull model and Markov chain Monte Carlo simulation, Studies identified from PubMed until November 2023
  • Reconstructed patient-level data
  • Weibull model and Markov chain Monte Carlo simulation
  • Studies identified from PubMed until November 2023

Pooled result

Stroke

Hazard ratio

0.67

95% CI 0.50–0.90

DOACsvs no DOAC in device-detected AF
HR 0.67 (95% CI 0.50–0.90)

As reported in the abstract

Time to benefit (TTB) to prevent 1 stroke per 100 DOAC-treated patients
2.67 years

Safety

Major bleeding

HR (95% CI)
DOACs1.57 (1.21–2.04)
Major bleeding — time to harm (TTH) to observe 1 major bleeding
1.67 years

Original publication

Time to benefit and harm of direct oral anticoagulants in device-detected atrial fibrillation: A pooled analysis of the NOAH-AFNET 6 and ARTESiA trials. Heart Rhythm. Published 24 June 2024. doi:10.1016/j.hrthm.2024.06.038

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

Get them every week

New studies on this topic in My Week and in your Monday e-mail.

We e-mail you a sign-in link and a code. No password, no spam.