Table 2. The echocardiographic and tissue Doppler parameters of occlusive group before and immediately after percutaneous transluminal angioplasty .
| Occlusive group (n = 26) | Before PTA | After PTA | p value |
| Systolic blood pressure (mmHg) | 157.7 ± 27.9 | 152.5 ± 20.5 | 0.21 |
| Diastolic blood pressure (mmHg) | 73.3 ± 15.6 | 70.1 ± 16.3 | 0.23 |
| Heart rare (beats per minutes) | 69.2 ± 15.2 | 77.5 ± 13.8 | 0.09 |
| 2-D Variable | |||
| RVEF (%) | 46.8 ± 4.9 | 44.7 ± 3.4 | 0.18 |
| LVEF (%) | 57.9 ± 8.3 | 57.7 ± 8.0 | 0.93 |
| M-mode variable | |||
| RV TAPSE (cm) | 2.3 ± 0.4 | 2.1 ± 0.3 | 0.08 |
| Doppler variable | |||
| RVOT TVI (m/s) | 19.8 ± 2.5 | 20.3 ± 2.8 | 0.40 |
| LVOT TVI (m/s) | 20.6 ± 3.0 | 20.1 ± 3.8 | 0.86 |
| Mitral E (cm/s) | 73.2 ± 25.0 | 66.8 ± 23.2 | 0.03 |
| Mitral A (cm/s) | 89.2 ± 19.5 | 87.0 ± 16.5 | 0.66 |
| Deceleration time (ms) | 189.9 ± 56.1 | 207.7 ± 63.8 | 0.63 |
| PASP (mmHg) | 31.6 ± 11.3 | 42.6 ± 12.0 | 0.001 |
| Calculation index | |||
| M-index (cm/s) | 156.3 ± 63.1 | 109.7 ± 58.8 | 0.02 |
| RV stroke volume (ml) | 59.5 ± 21.3 | 60.4 ± 19.3 | 0.80 |
| LV stroke volume (ml) | 60.3 ± 19.0 | 60.8 ± 20.3 | 0.92 |
| RV (lateral tricuspid annulus) | |||
| Sm (cm/s) | 11.8 ± 1.4 | 10.7 ± 2.5 | 0.16 |
| Em (cm/s) | 9.0 ± 2.8 | 8.3 ± 3.1 | 0.49 |
| Am (cm/s) | 13.8 ± 3.4 | 15.9 ± 4.6 | 0.57 |
| IVCT (ms) | 63.9 ± 10.3 | 67.9 ± 15.3 | 0.41 |
| IVRT (ms) | 75.1 ± 12.9 | 98.4 ± 27.7 | p < 0.001 |
| MPI | 0.46 ± 0.08 | 0.62 ± 0.13 | p < 0.001 |
Variables area means ± standard deviations.
Am, peak late diastolic myocardial velocity derived by pulsed-wave Doppler tissue; Em, peak early diastolic myocardial velocity derived by pulsed-wave Doppler tissue; IVCT, isovolumic contraction time derived from Doppler tissue imaging; IVRT, isovolumic relaxation time derived from Doppler tissue imaging; LV, left ventricle; LVEF, left ventricular ejection fraction; LVOT, left ventricular outflow tract; Mitral A, peak velocity of late diastolic mitral inflow; Mitral E, peak velocity of early diastolic mitral inflow; MPI, myocardial performance index, defined as the sum of isovolumetric contraction time and isovolumetric relaxation time divided by the ejection time obtained by Doppler tissue image; M-index, defined as Mitral E divided by RV MPI; PASP, pulmonary artery systolic pressure; RV, right ventricle; RVEF, right ventricular ejection fraction; RVOT, right ventricular outflow tract; Sm, peak systolic myocardial velocity derived by pulsed-wave Doppler tissue; TAPSE, tricuspid annular plane systolic excursion; TVI, time velocity integral.