Table 1: Characteristics of cooling intervention.
Cardiac Arrest |
Neurogenic fever |
COVID-19 |
|
Total patients |
N = 39 |
N = 43 |
N = 10 |
Start temperature |
|
|
|
< 35 °C |
16 (41%) |
0 (0%) |
0 (0%) |
35 °C - 37 °C |
23 (59%) |
18 (41.8%) |
1 (10%) |
37 °C - 39 °C |
0 (0%) |
22 (51.2%) |
2 (20%) |
> 39 °C |
0 (0%) |
3 (7%) |
7 (70%) |
Target temperature |
|
|
|
33 °C |
22 (56.4%) |
0 (0%) |
0 (0%) |
36 °C |
17 (43.6%) |
22 (51.2%) |
5 (50%) |
37 °C |
0 (0%) |
21 (48.8%) |
5 (50%) |
Hypothermia treatment (induction & maintenance phases) |
|
|
|
Hypothermia duration (h) |
19.4 ± 9.4 h |
18.5 ± 16.3 h |
19.0 ± 12.3 h |
Time from start to target* (h) |
2.8 ± 1.3 h |
2.3 ± 0.8 h |
3.1+ ± 1.6 h |
Cooling rate (°C/h) |
1.1 ± 0.4 °C/h |
0.8 ± 0.3 °C/h |
1.0 ± 0.4 °C |
Fluctuations in maintenance |
|
|
|
Variation at target (Mean ± SD °C) |
0.4 ± 0.2 °C |
0.4 ± 0.2 °C |
0.3 ± 0.2 °C |
% of time in target ± 0.5 °C |
80.3 ± 25.3% |
81.1 ± 20.0% |
81.3 ± 29.0% |
% of time 0.5-1.0 °C under target |
4.6 ± 6.3% |
4.8 ± 6.2% |
3.2 ± 5.0% |
% of time > 1.0 °C under target |
1.0 ± 2.4% |
2.3 ± 6.8% |
0.2 ± 0.4% |
% of time 0.5-1.0 °C above target |
11.2 ± 16.0% |
9.1 ± 13.2% |
2.6 ± 3.7% |
% of time > 1.0 °C above target |
5.0 ± 10.7% |
2.0 ± 4.9% |
7.4 ± 15.8% |
Lowest temperature (°C) |
32.7 ± 2.2 °C |
35.2 ± 1.5 °C |
35.8 ± 2.5 °C |
Normothermia treatment |
|
|
|
Number of Rewarm/Maintenance phase |
17/12 |
4/3 |
- |
Normothermia duration (h) |
12.3 ± 21.0h |
0.6 ± 2.0h |
- |
Avg. Rewarming rate (°C/h) |
0.2 ± 0.1°C/h |
0.5 ± 0.2 °C/h |
- |
% of time rewarming rate > 0.5 °C/h |
23.6 ± 22.7% |
54.1 ± 29.3% |
- |