Table 2. Correlation between heart rate turbulence of dogs with MMVD and echocardiographic parameters.
| TO (%) | TS (ms/RR) | |||
|---|---|---|---|---|
| R | p | R | p | |
| LA/Ao | 0.4367 | 0.0178* | −0.5559 | 0.0009* |
| LVIDd | 0.0290 | 0.8813 | −0.2327 | 0.1999 |
| LVDNN | 0.3410 | 0.0702 | −0.3147 | 0.0793 |
| LVIDs | −0.0870 | 0.6535 | −0.1601 | 0.3814 |
| LVDSN | 0.1041 | 0.5909 | −0.2214 | 0.2233 |
| FS | 0.2513 | 0.1885 | 0.0031 | 0.9864 |
| E | 0.4228 | 0.0223* | −0.6092 | 0.0002* |
| E/A | 0.1269 | 0.5198 | −0.4535 | 0.0091* |
| IVRT | 0.0444 | 0.8191 | 0.3846 | 0.0297 |
| E/IVRT | 0.1044 | 0.5900 | −0.5443 | 0.0013* |
| E´ | 0.0689 | 0.7381 | −0.3084 | 0.0914 |
| E/E´ | 0.4083 | 0.0384* | −0.4068 | 0.0231* |
| TAPSE | −0.0109 | 0.9596 | −0.3463 | 0.0710 |
p ≤ 0.05.
E: Peak velocity of early diastolic transmitral flow; E´: Peak velocity of early diastolic mitral annular motion as determined by pulsed wave Doppler; E/A: Ratio of E to A. E/E´: Ratio of E to E´; E/TRIV: Ratio of E to IVRT; FS: Fractional shortening; IVRT: Isovolumetric relaxation time; LA/Ao: Ratio of the left atrial dimension to the aortic annulus dimension; LVIDd: Left ventricle internal diameter in diastole; LVDNN: Left ventricle internal diameter in diastole corrected by the body surface area; LVIDs: Left ventricle internal diameter in systole; LVSNN: Left ventricle diameter in systole corrected by the body surface area; p: Statistical difference; R: Correlation coefficient; TAPSE: Tricuspid annular plane systolic excursion; TO: Turbulence onset; TS: Turbulence slope.