Key result
Impaired LAA mechanical function is linked to stroke history in AF patients.
Why the study?
Does left atrial appendage angiography improve stroke risk prediction in patients with atrial fibrillation?
Cross-Sectional
Does left atrial appendage angiography improve stroke risk prediction in patients with atrial fibrillation?
p-value: p=0.048
Assessment of contrast retention using LAA angiography improves stroke risk stratification beyond standard clinical scores in patients with atrial fibrillation.
LAA angiography may aid AF stroke risk stratification; leaves open prospective validation beyond clinical scores.
BACKGROUND: The current risk stratification schemes for stroke in patients with atrial fibrillation (AF) are insufficient for an accurate assessment of stroke risk. AIMS: This study evaluates the association between the mechanical function of the left atrial appendage (LAA), as assessed by angiography, and the risk of stroke. METHODS: We conducted a cross-sectional study to assess the mechanical function of the LAA by measuring the left atrial appendage ejection fraction (LAAEF) and grading the contrast retention (CR) using angiography. RESULTS: -VASc score alone]; p=0.048) Conclusions: Impaired mechanical function of the LAA, indicated by a low LAAEF and CR, is associated with a history of stroke in patients with AF. Assessment of CR using LAA angiography helps improve the stratification scheme for stroke risk prediction.
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Jiang et al. (2023) conducted a cross-sectional in Atrial fibrillation. Left atrial appendage angiography was evaluated on History of stroke (p=0.048). Impaired mechanical function of the left atrial appendage, indicated by low ejection fraction and contrast retention on angiography, is associated with a history of stroke in AF patients (p=0.048).
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