Table 1.
Transthoracic echocardiographic parameters
| NR (n = 6) | SHR (n = 6) | P value | Mean difference [95% CI] | |
|---|---|---|---|---|
| HR (beats min–1) | 310 ± 21 | 333 ± 48 | 0.3 | 22 [−18,58] |
| IVSd (cm)** | 1.9 ± 0.2 | 2.6 ± 0.2 | 0.001 | 0.7 [0.5,0.9] |
| IVSs (cm)** | 3.0 ± 0.1 | 3.7 ± 0.3 | 0.002 | 0.7 [0.4,0.9] |
| LVIDd (cm) | 6.7 ± 0.4 | 6.5 ± 0.9 | 0.7 | −0.2 [−0.9,0.6] |
| LVIDs (cm) | 3.8 ± 0.3 | 3.8 ± 1.1 | 0.9 | 0.0 [−0.8,0.9] |
| LVPWd (cm)* | 2.0 ± 0.3 | 2.4 ± 0.3 | 0.03 | 0.4 [0.1,0.8] |
| LVPWs (cm)* | 2.9 ± 0.2 | 3.4 ± 0.5 | 0.03 | 0.5 [0.2,0.9] |
| RWT | 0.58 ± 0.07 | 0.78 ± 0.16 | 0.02 | 0.2 [0.07,0.33] |
| LVFS (%) | 44 ± 2 | 43 ± 9 | 0.9 | −1 [−8,6] |
| LVEF (%) | 74 ± 3 | 72 ± 11 | 0.6 | −2 [−11,6] |
| MV E (mm s−1) | 652 ± 76 | 729 ± 128 | 0.2 | 77 [−29,188] |
| MV A (mm s−1) | 460 ± 106 | 477 ± 63 | 0.7 | 17 [−66,113] |
| MV E/A | 1.5 ± 0.4 | 1.5 ± 0.3 | 0.7 | 0.0 [−0.3,0.4] |
| PA peak vel (mm s−1) | 1048 ± 92 | 1080 ± 130 | 0.6 | 32 [−82,146] |
Data are reported as the mean ± SD. *P < 0.05, **P < 0.005; the bootstrap method. LV thickness was measured at the mid LV level. HR, heart rate; IVSd and IVSs, interventricular septal thickness during diastole and systole, respectively; LVIDd and LVIDs, left ventricular internal diameter during diastole and systole, respectively; LVPWd and LVPWs, left ventricular posterior wall thickness during diastole and systole, respectively; LVFS, left ventricular fractional shortening; E, early ventricular filling phase; A, ventricular filling during atrial contraction; MV E, mitral valve E velocity; MV A, mitral valve A velocity; MV E/A, mitral valve E/A ratio; PA peak vel, pulmonary artery peak velocity.