Table 1.

Within-day variability of echocardiographic variables in five healthy cats before and after an intramuscular injection with dexmedetomidine and buprenorphine

Variable	SD	CV (%) and range
Pre-sedation RVIDd	0.02	10.4 (4.9–15.8)
Pre-sedation LVIDd	0.09	4.0 (2.7–14.9)
Pre-sedation LVIDs	0.10	13.2 (4.3–23.0)
Pre-sedation FS	5.60	12.1 (6.2–16.6)
Pre-sedation LA	0.10	7.8 (4.0–14.0)
Pre-sedation Ao	0.07	7.1 (4.1–11.0)
Pre-sedation LA/Ao	0.06	5.7 (3.0–7.8)
Pre-sedation IVSd	0.02	4.9 (4.5–5.7)
Pre-sedation IVSs	0.09	11.0 (3.2–15.8)
Pre-sedation LVPWd	0.03	7.2 (4.7–9.5)
Pre-sedation LVPWs	0.07	10.7 (3.4–27.0)
Pre-sedation PA Vmax	0.03	5.4 (2.0–8.0)
Pre-sedation Ao Vmax	0.04	5.6 (3.9–7.7)
Post-sedation RVIDd	0.05	15.8 (9.0–21.0)
Post-sedation LVIDd	0.15	9.7 (6.9–13.4)
Post-sedation LVIDs	0.13	11.8 (7.2–19.4)
Post-sedation FS	4.50	12.3 (2.7–22.0)
Post-sedation LA	0.11	10.3 (7.0–12.5)
Post-sedation Ao	0.09	9.3 (5.3–12.7)
Post-sedation LA/Ao	0.08	7.3 (4.3–10.5)
Post-sedation IVSd	0.03	7.8 (4.0–18.9)
Post-sedation IVSs	0.06	8.8 (1.7–15.6)
Post-sedation LVPWd	0.07	5.4 (2.4–9.6)
Post-sedation LVPWs	0.06	10.1 (5.8–15.5)
Post-sedation PA Vmax	0.06	13.8 (2.0–33.0)
Post-sedation Ao Vmax	0.06	11.1 (3.1–37.7)

CV = coefficient of variation; RVIDd = right ventricular internal diameter at end-diastole; LVIDd = left ventricular internal diameter at end-diastole; LVIDs = left ventricular internal diameter at end-systole; FS = fractional shortening; LA = left atrial diameter; Ao = aortic diameter; IVSd = interventricular septum at end-diastole; IVSs = interventricular septum at end-systole; LVPWd = left ventricular posterior wall at end-diastole; LVPWs = left ventricular posterior wall at end-systole; PA V_max = maximum velocity in pulmonary artery; Ao V_max = maximum velocity in aorta