Demonstration of recovery times for each infusion temperature for the spinal cord temperature to rise to within 0.6°C (1°F) of the core body temperature, as measured by a rectal probea
| Animal No. | Infusion Temp | Low Cord Temp | Body Temp | Recovery Time (min) |
|---|---|---|---|---|
| 1 | R | 31.9 | 34.3 | 9.0 |
| 1 | I | 30.7 | 34.2 | 12.0 |
| 1 | IB | 30.2 | 34.3 | 15.0 |
| 2 | R | 29.1 | 35.5 | 9.0 |
| 2 | I | 21.1 | 36.0 | 12.0 |
| 2 | IB | 16.8 | 36.2 | 15.0 |
| 3 | R | 34.8 | 38.0 | 6.0 |
| 3 | I | 32.8 | 38.4 | 6.0 |
| 3 | IB | 22.6 | 37.8 | 15.0 |
| 4 | R | 33.9 | 37.4 | 3.0 |
| 4 | I | 31.9 | 38.1 | 9.0 |
| 4 | IB | 18.8 | 38.1 | 15.0 |
| 5 | R | 34.6 | 36.8 | 3.0 |
| 5 | I | 34.7 | 37.5 | 6.0 |
| 5 | IB | 21.8 | 38.2 | 15.0 |
Note:—Temp indicates temperature; R, room; I, PL cooled in a refrigerator before infusion (temperature approximately 3°C); IB, cooled PL passed through extension tubing coiled in an IB immediately prior to entering the microcatheter. This step was added to correct for any warming that occurred between the hanging bag and the microcatheter as the fluid passed via the pump.
↵a Temperature measurements were obtained every 3 minutes during the observation period. Hence, recovery times are in 3-minute increments.