Table 1.
Summary of clinical findings in 12 ARVD/C afflicted boxer dogs. M = male, F = female, VT = ventricular tachycardia, AF = atrial fibrillation, APC = atrial premature complexes, N = no clinical signs, L = lethargy, S = syncope, A = ascites, PE = pulmonary edema, PLE = pleural effusion, LVDD = left ventricular diameter during diastole, LVDS = left ventricular diameter during systole, FS = % fractional shortening, LA/Ao = left atrial/aortic root ratio
| Dog ID | Age at Death (mos) | Sex | Rhythm | Clinical Signs | Echocardiography** | |||
|---|---|---|---|---|---|---|---|---|
| LVDD (mm) | LVSD (mm) | FS (%) | LA/Ao | |||||
| 1 | 52 | M | VT | L | 49.3 | 42.4 | 14 | 1.9 |
| 2 | 49 | F | VT | S | 35.9 | 24.6 | 31.5 | 1.85 |
| 3 | 136* | F | VT | S | 42.6 | 27.7 | 35 | 2.14 |
| 4 | 99* | M | VT | N | 55 | 42.7 | 22 | 2.07 |
| 5 | 93 | F | VT/AF | A | 45.2 | 44.3 | 2.2 | 2.23 |
| 6 | 153* | F | VT | N | 40 | 28.9 | 27.7 | 2.02 |
| 7 | 15* | F | AF | PE | 66.7 | 47.2 | 29 | 5.6 |
| 8 | 101 | F | VT | S/A/PLE | 62.7 | 44.7 | 28.7 | 2.44 |
| 9 | 94* | F | VT | L/PE | 52.3 | 41 | 21.1 | 1.74 |
| 10 | 118 | F | VT | L, S | 53.2 | 42.1 | 20.1 | 2.3 |
| 11 | 96 | M | VT | N | - | - | - | - |
| 12 | 58* | M | APC | PLE | 66 | 56.3 | 14.7 | 3.6 |
*
Indicates dog died suddenly rather than euthanized for medical reasons.
**
For unaffected boxer LVDD < 46 mm, LVDS < 29, FS > 27%, LA/Ao < 1.8