Overview of patients receiving non-invasive ventilation (NIV)
| Characteristic | All retrieval NIV patients (n=106) | NIV for transport (n=58) | Failed a trial of NIV (n=20) | NIV removed for transport (n=28) |
|---|---|---|---|---|
| Median age | 63 (14–85) | 62 (14–85) | 62.5 (20–83) | 64 (18–82) |
| Doctor grade—consultant | 34 | 19 | 3 | 12 |
| Doctor grade—registrar | 72 | 39 | 17 | 16 |
| Female gender | 47 | 23 | 10 | 14 |
| Male gender | 59 | 35 | 10 | 14 |
| Median O2 saturations (start) | 97 (61–100) | 96 (61–100) | 96 (84–100) | 97 (80–100) |
| Median O2 saturations (end) | 98 (83–100) | 98 (83–100) | 98 (90–100) | 97 (84–100) |
| Median systolic BP (start) | 130 (60–270) | 135 (80–270) | 135 (80–195) | 113 (60–190) |
| Median systolic BP (end) | 126 (95–200) | 129.5 (98–200) | 130 (100–180) | 117 (95–150) |
| Median RR (start) | 26 (12–45) | 25.5 (12–42) | 26.5 (13–45) | 25.5 (18–39) |
| Median RR (end) | 22 (12–38) | 24.5 (12–38) | 15 (12–28) | 25 (14–35) |
| Median pulse rate (start) | 95 (36–150) | 91 (36–140) | 110.5 (66–150) | 92.5 (50–140) |
| Median pulse rate (end) | 94 (50–150) | 90 (51–140) | 101 (58–135) | 90 (50–140) |
| Inotropic support required at 24 hours | 13 (12.3%) | 6 (10.3%) | 2 (10%) | 5 (17.9%) |
| Death in mission or at 24 hours | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) |
| ECMO or IABP at 24 hours | 2 (1.89%) | 1 (1.72%) | 1 (5%) | 0 (0%) |
| Intubation required at 24 hours | 17 (19.8%) | 12 (20.7%) | N/A | 5 (17.8%) |