Abstract:【Objective】To explore the significance of ultrasound cardiac structure in evaluation of non-valvular atrial fibrillation (AF) stroke risks. 【Methods】A total of 91 AF patients, including 38 cases with stroke and 53 cases without stroke were collected retrospectively. The data were compared to 102 recently recruited AF patients, who served as the control group. All the subjects above accepted ultrasonic cardiogram to detect right atrium diameter (RAD), interventricular septal thickness (IVS), left ventricular diameter (LVD), posterior wall of left ventricle (LVPW) and left atrium diameter (LAD). Further analysis of the correlation between clinic symptom scores (CHADS2 and CHA2DS2-VASc scores) and cardiac structural parameters in the control group were evaluated.【Results】The retrospective study indicated that IVS (OR=2.698,P=0.018), LVPW (OR=2.703,P=0.013) and LAD (OR=3.708,P=0.022) were the risk factors of stroke in AF patients. Our study also showed that RAD (rs=0.562,P=0.020), IVS (rs=0.497,P=0.013), LVPW (rs=0.398,P=0.046) and LAD (rs=0.701,P=0.007) were positively correlated with CHADS2 scores in AF patients. Similarly, positive correlations were found between CHA2DS2 - VASc scores and IVS (rs=0.668,P=0.019), LVPW (rs=0.481,P=0.032), LAD (rs=0.649,P=0.011). 【Conclusion】Indicators of ultrasound cardiac structure have a certain significance in predicting the risk of stroke in non-valvular atrial fibrillation patients.
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