AI Summary & Key Takeaways
AI InsightConclusion: The LA expansion index is useful for predicting recurrent stroke.
📌 3 Key Takeaways
Özet
Objective: Although left atrial (LA) expansion index is associated with cardiovascular prognosis, whether it affects recurrent strokes is still unknown. Methods: This study enrolled 176 patients hospitalized with first ischemic stroke. Their stroke subtypes were classified as cardioembolic stroke (CE), noncardioembolic stroke (NCE), embolic stroke of undetermined source (ESUS), or transient ischemic attack. The LA expansion index was calculated as (Volmax−Volmin) × 100%/Volmin, where Volmax was defined as maximal LA volume and Volmin as minimal LA volume. The study endpoint was recurrent ischemic stroke. Results: Over a five-year (mean 4.9 years) follow-up period, 21 (11.9%) participants reached the study endpoint, including 10 with CE, five with NCE, and six with ESUS. The LA expansion index was lower in the event groups compared with the non-event group. For predicting recurrent stroke, LA expansion index 62.5% (log rank p<0.001). The LA expansion index was a significant independent predictor of recurrent stroke (hazard ratio=0.873; 95% confidence interval: 0.790–0.973 per 10% increase in LA expansion index; p=0.009). Conclusion: The LA expansion index is useful for predicting recurrent stroke.