Table 1.
Population characteristics, clinical presentation data and echocardiographic data for healthy control cats with no evidence of left ventricular hypertrophy
| Cats diagnosed with HCM (n = 60) | Healthy control cats (n = 16) | |
|---|---|---|
| Age (years) | 8.0 (1.0–19.0) | 13.2 (10.0–20.0) |
| Weight (kg) | 4.55 (3.13–8.83) | 4.13 (3.05–6.46) |
| IGF-1 (ng/ml) | 501 (25–1179) | 439 (207–681) |
| Pedigree | 10 (16.7) | 0 |
| Male | 38 (63.3) | 8 (50) |
| Heart murmur grade III or louder | 30 (50) | 1 (6) |
| Arrhythmia | 16 (26.7) | 0 |
| LV maximum thickness (mm) | 7.0 (6.0–12.6) | 5.0 (4.1–5.8) |
| LVIDd (mm) | 14.0 (8.3–28.0) | 14.4 (11.3–16.9) |
| LA:Ao | 1.54 (1.02–3.61) | 1.22 (1.01–1.39) |
| LA diameter (mm) | 17.00 (2.00–30.00) | 13.94 (11.20–17.44) |
Data are given as median (range). Categorical variables are displayed as n (%) of cats with the clinical sign or echocardiographic criteria
HCM = hypertrophic cardiomyopathy; IGF-1 = insulin-like growth factor-1; LV = left ventricle; LVIDd = left ventricular internal diameter in diastole; LA:Ao = left atrium to aortic ratio in a short-axis view; LA = left atrium