Clinical and echocardiographic parameters considered for the combined patients’ population before and immediately after ECV
| Before (AF) | After (SR) | p value | |
| Heart rate (beats/min) | 89.8±18.1 | 89.0±18.6 | 0.68 |
| LV EDV (mL) | 98.8±28.2 | 97.9±24.2 | 0.787 |
| LV SV (mL) | 45.6±12.5 | 49.9±12.8 | 0.04 |
| LV EF (%) | 47.2±8.9 | 51.6±7.5 | 0.007 |
| LA maximum volume (mL) | 70.0 (56.5–88.5) | 63.0 (54.5–80.0) | 0.124 |
| LA minimum volume (mL) | 49.2±16.9 | 52.8±15.8 | 0.212 |
| Conduit (mL) | 22.8±10.6 | 36.1±12.8 | <0.001 |
| Conduit (ratio to LV SV) | 0.50±0.19 | 0.71±0.15 | <0.0001 |
| Reservoir (mL) | 22.7±10.0 | 13.8±6.8 | <0.0001 |
| Reservoir (ratio to LV SV) | 0.51±0.19 | 0.29±0.15 | <0.0001 |
| TP-SD (%) | 11.1±5.2 | 8.5±4.8 | 0.02 |
| LA peak strain (%) | 10.9±5.0 | 19.4±7.6 | <0.001 |
| LV peak strain (%) | −14.1±4.3 | −14.7±3.7 | 0.417 |
| E (cm/s) | 91.4±24.5 | 88.9±26.5 | 0.629 |
| E’lateral (cm/s) | 11.78±3.51 | 9.50+2.50 | <0.001 |
| E/E’lateral | 8.51±3.68 | 9.97±4.20 | 0.03 |
| Mitral DT (msec) | 139 (117–161) | 186 (146–215) | <0.001 |
| Klv (mm Hg/mL) | 0.40 (0.33–0.48) | 0.19 (0.13–0.31) | <0.001 |
| EDP (mm Hg) | 17.0±2.2 | 17.9±2.5 | 0.03 |
| Kla (mm Hg/mL) | 0.85 (0.56–1.01) | 1.29 (0.97–2.40) | <0.001 |
| Kla/Klv | 4.96 (2.46–7.50) | 7.49 (5.14–14.5) | <0.001 |
AF, atrial fibrillation; DT, deceleration time; ECV, electrical cardioversion; EDP, end-diastolic pressure; EDV, end-diastolic volume; EF, ejection fraction; LA, left atrial; LV, left ventricle; SR, sinus rhythm;SV, stroke volume; TP-SD, time-to-peak SD of segmental longitudinal atrial strains (expressed as a percentage of the R–R’ interval).