Arrhythmias & electrophysiology

Percutaneous left atrial appendage closure for stroke prevention in hypertrophic cardiomyopathy patients with atrial fibrillation

Heart RhythmPublished Retrospective cohort study

Main finding · Ischemic strokeResult — go to the resultHazard ratio 1.9

Authors' conclusion

These real-world data do not support percutaneous LAAC in HCM-AF patients as the primary treatment strategy during long-term AC to reduce stroke risk.

Study context

Population
Patients with hypertrophic cardiomyopathy and atrial fibrillation (AF), TriNetX Global Research Network, 2015–2024matched cohort
Participants
14,867 patients
Exposure
Percutaneous left atrial appendage closure (LAAC) vs anticoagulation (AC) alone
  • LAACn = 364
  • ACn = 14,503reference
Outcome
Ischemic stroke
Follow-up
3 years
Methodological detailspropensity-score matched
  • Propensity-score matched

Main finding

As reported in the abstract

Hazard ratio

1.9

P = 0.006

By group

Observational data: associations, not effects.

Further findings

Systemic embolism · matched cohort

HR 1.8 · P = 0.006

All-cause mortality

No difference in mortality
  • Matched cohort

Original publication

Percutaneous left atrial appendage closure for stroke prevention in hypertrophic cardiomyopathy patients with atrial fibrillation. Heart Rhythm. Published 24 May 2024. doi:10.1016/j.hrthm.2024.05.038

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

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