Table 6.
Analysis of the signal quality measured by a transmittance pulse oximeter probe placed on the tongue or by a reflectance pulse oximeter probe placed on the tail or tibia in anesthetized dogs that had or had not received dexmedetomidine.
| n | Signal quality m (min-max) | Signal quality m (min-max) | P-value | |
|---|---|---|---|---|
| Tongue vs. tail | Tongue | Tail | ||
| BUT | 132 | 10/10 (4–10/10) | 10/10 (3–10/10) | 0.0066 |
| DEX | 100 | 10/10 (3–10/10) | 9/10 (3–10/10) | 0.0009 |
| Tongue vs. tibia | Tongue | Tibia | ||
| BUT | 92 | 10/10 (9–10/10) | 10/10 (3–10/10) | <0.0001 |
| DEX | 60 | 10/10 (3–10/10) | 5/10 (3–10/10) | <0.0001 |
| Tail vs. tibia | Tail | Tibia | ||
| BUT | 85 | 10/10 (3–10/10) | 10/10 (3–10/10) | <0.0001 |
| DEX | 49 | 10/10 (3–10/10) | 5/10 (3–10/10) | 0.0002 |
Values were only included if measurements for both positions were available and analyzed as paired values.
n, number of measurements; tongue, transmittance pulse oximeter probe placed on the tongue; tail, reflectance pulse oximeter probe placed at the ventral tail base; tibia, transmittance pulse oximeter probe placed on the medial aspect of the proximal tibia; BUT, premedication butorphanol 0.2 mg/kg IV; DEX, premedication dexmedetomidine 5 μg/ g + butorphanol 0.2 mg/kg IV; m, median. Bold values mean significant differences.