Table 2.
Comparison of 2D-STE measures for RV between two groups of study.
| Variables | PS (n=24) | Control (n=25) | P value |
|---|---|---|---|
| Strain | |||
| Global | -16.10 ± 5.37 | -22.15 ± 2.86 | 0.001 |
| Apical lateral | -17.10 ± 10.91 | -13.48 ± 7.31 | 0.178 |
| Middle lateral | -19.66 ± 12.0 | -22.32 ± 4.13 | 0.302 |
| Basal lateral | -23.26 ± 12.58 | -23.74 ± 5.90 | 0.863 |
| Apical septal | -15.17 ± 5.80 | -9.89 ± 9.52 | 0.024 |
| Middle septal | -15.32 ± 3.88 | -22.70 ± 6.78 | 0.001 |
| Basal septal | -19.89 ± 7.35 | -37.21 ± 10.76 | 0.001 |
| Strain rate | |||
| Global | 2.05 ± 0.75 | 2.15 ± 0.43 | 0.580 |
| Apical lateral | 2.77 ± 0.90 | 1.65 ± 1.60 | 0.001 |
| Middle lateral | 3.21 ± 1.83 | 1.79 ± 1.62 | 0.007 |
| Basal lateral | 3.65 ± 2.24 | 0.78 ± 2.59 | 0.001 |
| Apical septal | 2.14 ± 0.68 | 0.23 ± 2.22 | 0.001 |
| Middle septal | 2.20 ± 0.68 | 1.79 ± 1.91 | 0.324 |
| Basal septal | 2.87 ± 1.09 | 3.87 ± 2.51 | 0.079 |
| TAPSE | 14.09 ± 4.49 | 18.48 ± 2.77 | 0.001 |
| LVEF | 74.20 ± 6.48 | 75.16 ± 7.07 | 0.626 |
2D-STE, two-dimensional speckle tracking echocardiography; LVEF, left ventricular
ejection fraction; PS, pulmonary stenosis; RV, right ventricle; TAPSE, tricuspid annular
plane systolic excursion.
Continuous data are presented as mean ± standard deviation and analyzed using independent student t
test. P ≤0.05 was considered statistically significant.