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Mean left atrial voltage (LAVOL) and interatrial septal (IAS) thickness according to CHADS2 score and CHA2DS2-VASc score. (A, C) There were no statistically significant differences in mean LAVOL or IAS thickness according to CHADS2 score. (B, D) However, mean LAVOL was significantly lower and IAS thickness was significantly higher in high-risk CHA2DS2-VASc level (≥ 2).
