TABLE 1.
Breed, median age, sex, and ventricular septal defect type of the affected horses
| Isolated VSD with clinical signs (n = 6) | Isolated VSD without clinical signs (n = 36) | VSD as part of complex congenital cardiac anomaly (n = 12) | |
|---|---|---|---|
| Breed |
5 Warmbloods 1 Pony |
20 Warmbloods 5 Ponies 5 Draft horses 2 Welsh ponies 1 Arabian horse 1 Lusitano 1 Thoroughbred 1 Trotter |
6 Warmbloods 1 Draft horse 2 Welsh ponies 2 Arabian horses 1 Arabian x Friesian |
| Median (range) age | 4 (0‐14) years | 6 (0‐26) years | 1 (0‐8) years |
| Sex |
2 Stallions 1 Gelding 3 Mares |
14 Stallions 11 Geldings 11 Mares |
4 Stallions 3 Geldings 5 Mares |
| VSD type |
5 Perimembranous 1 Infundibular |
31 Perimembranous 3 Infundibular 2 Muscular |
11 Perimembranous 1 Muscular |
Abbreviations: n, number of horses; VSD, ventricular septum defect(s).