Table 1.
Basic echocardiographic measures in normal and SAS‐affected Boxers
| Normal (215 dogs) | SAS‐affected (19 dogs) | |
|---|---|---|
| IVSd (mm) | 9.9 ± 1.6 | 10.1 ± 1.3 |
| LVDd (mm) | 41.8 ± 5.1 | 40 ± 4.7 |
| LVPWd (mm) | 9.4 ± 1.6 | 10.3 ± 0.8 |
| IVSs (mm) | 15 ± 11.6 | 15.9 ± 2.4 |
| LVDs (mm) | 28.5 ± 4.0 | 31.3 ± 5.6 |
| LVPWs (mm) | 16.2 ± 2.6 | 16.2 ± 1.6 |
| LA/Ao | 1.5 ± 0.1 | 1.6 ± 0.3 |
| EDVI (mL/m2) | 86.5 ± 22.4 | 85.5 ± 20.3 |
| ESVI (mL/m2) | 33.8 ± 6.3 | 34.2 ± 5.6 |
| FS (%) | 31.5 ± 3.6 | 31.2 ± 7.1 |
| EF (%) | 59.4 ± 8.0 | 58.6 ± 10.4 |
| CW‐Pulmonic peak velocity (m/s) | 1.4 ± 0.2 | 1.45 ± 0.3 |
Values are reported as mean ± SD. The LA/Ao ratio was calculated from the right parasternal short‐axis view of the heart base according to Hansson et al.35
IVSd, interventricular septum diastole; LVDd, left ventricular diameter diastole; LVPWd, left ventricular posterior wall diastole; IVSs, interventricular septum systole; LVDs, left ventricular diameter systole; LVPWs, left ventricular posterior wall systole; LA/Ao, left atrial/aortic ratio; EDVI, end diastolic volume index; ESVI, end‐systolic volume index; SF, shortening fraction; EF, ejection fraction; CW, continuous‐wave Doppler.