Arrhythmias & electrophysiology

Predictors of paroxysmal atrial fibrillation in patients with a cryptogenic stroke: Selecting patients for long-term rhythm monitoring

Heart RhythmPublished Retrospective cohort study

Authors' conclusion

The ACL score enables clinicians to better predict which patients are more likely to be diagnosed with device-detected AF after a cryptogenic stroke.

Study context

Population
Patients admitted with cryptogenic stroke or TIA who underwent long-term rhythm monitoring with an implantable cardiac monitor, Montefiore Medical Center, May 2017–June 2022
Exposure
ACL score vs CHA2DS2-VASc and C2HEST scores for predicting device-detected atrial fibrillation (AF)
Outcome
Predictors of clinically significant AF (device-detected AF)
Methodological detailssingle-centre
  • Single-centre

Main finding

As reported in the abstract

Variables positively associated with clinically significant AF
Age
P <.001
Race
P = .022
DM
P = .026
Chronic obstructive pulmonary disease
P = .012
Presence of atrial runs
P = .003
Number of atrial runs per 24 h
P <.001
Total atrial run beats per 24 h
P <.001
Beats in longest atrial run
P <.001
Left atrial enlargement
P = .007
At least mild mitral regurgitation
P = .009

Observational data: associations, not effects.

Further findings

Prediction of device-detected AF by risk score

ACL score superior to CHA2DS2-VASc and comparable to C2HEST

Original publication

Predictors of paroxysmal atrial fibrillation in patients with a cryptogenic stroke: Selecting patients for long-term rhythm monitoring. Heart Rhythm. Published 4 July 2024. doi:10.1016/j.hrthm.2024.07.004

Summarised from the published abstract; every number is checked against it

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