Table 3. Relationship between echocardiographic parameters and the mean left atrial pressure.
| Multiple linear regression | β | 95% CI | p value |
|---|---|---|---|
| LVEF | −0.193 | −0.40, 0.15 | 0.068 |
| LVMI | −0.038 | −0.09, 0.01 | 0.146 |
| LA volume index | −0.018 | −0.08, 0.05 | 0.572 |
| LA emptying fraction | −0.007 | −0.07, 0.08 | 0.845 |
| E | −0.074 | −0.17, 0.02 | 0.125 |
| DT | −0.004 | −0.03, 0.17 | 0.725 |
| e′ medial | 0.758 | −0.03, 1.54 | 0.920 |
| E/e′ medial | 0.932 | 0.32, 1.55 | 0.003 |
| TR Vmax | 0.103 | −0.29, 0.50 | 0.608 |
The correlation of the mean LAP calculated after adjusting for the clinical related factors of LV diastolic function (age, sex, hypertension, diabetes, coronary artery disease, and stroke), heart rate and rhythm status on echocardiography, and AF type and duration.
AF = atrial fibrillation; CI = confidence interval; DT = deceleration time, LA = left atrial; LAP = left atrial pressure; LV = left ventricular; LVEF = left ventricular ejection fraction; LVMI = left ventricular mass index; TR Vmax = tricuspid regurgitation maximal velocity.