Table 2.
Preoperative transthoracic echocardiography
| DD group (n=100) | Control group (n=206) | P value | |
|---|---|---|---|
| Two-dimensional | |||
| LVIDs (mm) | 31.7±3.7 | 31.6±3.6 | 0.77 |
| LVIDd (mm) | 45.5±5.2 | 44.7±5.1 | 0.25 |
| LA (mm) | 32.5±4.5 | 31.8±4.1 | 0.21 |
| LVESV (mL) | 38.7±7.3 | 40.0±6.9 | 0.15 |
| LVEDV (mL)* | 100.3±13.5 | 103.9±13.8 | 0.03 |
| LVEF (%) | 61.3±4.3 | 61.4±5.0 | 0.83 |
| Doppler | |||
| DT (ms)* | 268.6±27.6 | 200.0±24.5 | <0.01 |
| E/A* | 0.7±0.1 | 1.1±0.2 | <0.01 |
| E/e′* | 10.0±1.4 | 8.3±1.2 | <0.01 |
Values are expressed as Mean±SD Values are expressed as Mean±SD.
*
P<0.05 compared with DD group.
Abbreviations: LVIDs, left ventricle systolic internal dimension; LVIDd, left ventricle diastolic internal dimension; LA, left atrium; LVESV, left ventricular end systolic volume; LVEDV, left ventricular end diastolic volume; LVEF, left ventricle ejection fraction; DT, mitral early deceleration time; E, peak mitral flow velocity in early diastole; A, peak mitral flow velocity in late diastole; e′, early diastolic mitral annular velocity.