Arrhythmias & electrophysiology

Stroke Prevention With Prophylactic Left Atrial Appendage Occlusion in Cardiac Surgery Patients Without Atrial Fibrillation: A Meta-Analysis of Randomized and Propensity-Score Studies

Circ Cardiovasc IntervPublished Systematic review and meta-analysis of randomised and propensity-score studies

Pooled result · CVAResult — go to the resultHazard ratio 0.65 95% CI 0.45–0.94

Authors' conclusion

In this meta-analysis of patients without previous AF undergoing cardiac surgery, LAAO was associated with a decreased risk of CVA, no difference in the incidence of postoperative atrial fibrillation, and a significant overall survival benefit at a 4-year landmark analysis.

Study context

Population
Patients without previous atrial fibrillation (AF) (normal sinus rhythm) undergoing cardiac surgery
Participants
4,130 patients6 studies
Comparison
Concomitant left atrial appendage occlusion (LAAO) vs no LAAO during cardiac surgery
  • LAAOn = 2,146
  • no-LAAOn = 1,984reference
Outcome
Incidence of cerebrovascular accidents (CVAs)

Pooled result

CVA · 5 years

Hazard ratio

0.65

95% CI 0.45–0.94

P = 0.022

By group

no-LAAO

6.8±1.0%

LAAO

4.3±0.8%

LAAOvs no-LAAO
HR 0.65 (95% CI 0.45–0.94); P = 0.022

As reported in the abstract

Further pooled results

OutcomeRR (95% CI)P value
Postoperative AF1.05 (0.86–1.28)P = 0.628
OutcomeLAAOno-LAAOP value
Overall survival (landmark analysis) · 4 years89.6±11.0%86±12.2%P = 0.041

Original publication

Stroke Prevention With Prophylactic Left Atrial Appendage Occlusion in Cardiac Surgery Patients Without Atrial Fibrillation: A Meta-Analysis of Randomized and Propensity-Score Studies. Circ Cardiovasc Interv. Published 11 September 2024. doi:10.1161/circinterventions.124.014296

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