Arrhythmias & electrophysiology
Interatrial Block Association With Adverse Cardiovascular Outcomes in Patients Without a History of Atrial Fibrillation
Main finding · StrokeResult — go to the resultRMTLRC 1.43 95% CI 1.35–1.51Authors' conclusion
IAB is independently associated with stroke in patients with no history of AF/AFL even after adjustment for incident AF/AFL and CHA2DS2-VASc score.
Study context
- Population
- Patients without prior atrial fibrillation (AF)/atrial flutter (AFL)no prior AF/AFL
- Participants
- 458,994 patients
- Exposure
- Interatrial block (IAB) vs no IAB
- IABn = 86,317
- No IABn = 355,032reference
- Outcome
- Stroke
Methodological details5-center
- 5-center
Main finding
As reported in the abstract
RMTLRC
1.43
95% CI 1.35–1.51
Observational data: associations, not effects.
Further findings
| Outcome | RMTLRC (95% CI) |
|---|---|
| MortalityTau = 1,924 | 1.14 (1.07–1.21) |
| HFTau = 1,921 | 1.94 (1.83–2.04) |
| Systemic thromboembolismTau = 1,897 | 1.62 (1.53–1.71) |
| Incident AF/AFLTau = 1,888 | 1.16 (1.10–1.22) |
IAB prevalence
- Overall
- 19.6%
- Black
- 26.1%
- White
- 20.9%
- Hispanic
- 18.5%
- Native Americans
- 9.2%
Stroke in pre-existing AF/AFL (subgroup)
- IAB not associated with stroke
Original publication
Interatrial Block Association With Adverse Cardiovascular Outcomes in Patients Without a History of Atrial Fibrillation. JACC Clin Electrophysiol. Published 21 June 2023. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →