Table 3 Adverse events and survival for patients undergoing extracorporeal membrane oxygenation (ECMO) transferred by helicopter
Adverse events/survival | Daytime | Night-time | Total | p |
|---|---|---|---|---|
Numbers | 134 (70.2) | 57 (29.8) | 191 (100) | |
Missions with adverse events | 21 (15.7) | 16 (28.1) | 37 (19.4) | |
Primary missions | 9 (45.0) | 7 (46.7) | 16 (45.7) | |
Secondary missions | 11 (55.0) | 8 (53.3) | 19 (54.3) | |
Classification missing | 1 | 1 | 2 | |
Total adverse events* | 25 (100) | 19 (100) | 44 (100) | |
Medical adverse events | 18 (72.0) | 13 (68.4) | 31 (70.5) | |
Hypotension | 6 (33.3) | 7 (53.8) | 13 (41.9) | |
Hypoxemia | 3 (16.6) | 2 (15.4) | 5 (16.1) | |
Ventilation | 4 (22.2) | – | 4 (12.9) | |
ECMO relateda | 5 (27.8) | 4 (30.8) | 9 (29.1) | |
During insertion | 3 (16.7) | 3 (23.1) | 6 (19.4) | |
During transport | 2 (11.1) | 1 (7.7) | 3 (9.7) | |
Non-medical adverse events | 7 (28.0) | 6 (31.6) | 13 (29.5) | |
Organisationb | 5 (71.4) | 6 (100) | 11 (84.6) | |
Weather-relatedc (wind) | 2 (28.6) | – | 2 (15.4) | |
Patient survival | ||||
Transport survivors | 134 (100) | 57 (100) | 191 (100) | |
Alive at day 28/ICU discharge | 0.901 | |||
Yes | 61 (54.5) | 25 (55.6) | 86 (54.8) | |
No | 51 (45.6) | 20 (44.4) | 71 (45.2) | |
Missing | 22 | 12 | 34 | |
Alive at hospital discharge | 0.592 | |||
Yes | 44 (44.9) | 19 (50.0) | 63 (46.3) | |
No | 54 (55.1) | 19 (50.0) | 73 (53.7) | |
Missing | 36 | 19 | 55 |