TABLE 2.
Medical history and status at time of anesthesia episodes
| Anesthesia episodes |
UK cohort |
UK % |
Remainder cohort b |
Remainder Cohort, % |
|---|---|---|---|---|
| Sex. male/female, % male |
575/301 n = 876 |
65.6 male |
3661/2005 n = 5666 |
64.6 male |
| Past history a | ||||
| Apnea/respiratory support | 389/876 | 44.4 | 3626/5666 | 64.0 |
| Intraventricular hemorrhage | 76/875 | 8.7 | 387/5666 | 6.8 |
| ECMO | 5/871 | 0.6 | 57/5666 | 1.0 |
| PDA | 192/875 | 21.9 | 1027/5666 | 18.2 |
| Previous surgery | 269/876 | 30.7 | 1362/5666 | 24.0 |
| Admission from | ||||
| Home/ward | 528/876 | 60.3 | 3698/5666 | 65.2 |
| ICU | 234/876 | 26.7 | 1578/5666 | 27.9 |
| Other hospital | 114/876 | 13.0 | 390/5666 | 6.9 |
| Respiratory status at time of anesthesia | ||||
| No additional support | 629/876 | 71.8 | 4979/5666 | 87.8 |
| On oxygen | 82/876 | 9.4 | 327/5666 | 5.8 |
| Noninvasive vent. or CPAP | 36/876 | 4.1 | 137/5666 | 2.4 |
| Intubated and ventilated | 128 c /876 | 14.6 | 745/5666 | 13.1 |
| ECMO | 1/876 | 0.1 | 18/5666 | 0.3 |
| Preoperative assessment a | ||||
| Respiratory problems | 231/872 | 26.4 | 963/5666 | 17.0 |
| Cardiovascular problems | 211/871 | 24.1 | 1193/5666 | 21.1 |
| Metabolic problems | 103/874 | 11.8 | 563/5666 | 9.9 |
| Neurological problems | 143/869 | 16.3 | 670/5666 | 11.8 |
| Renal problems | 57/872 | 6.5 | 405/5666 | 7.1 |
| ASA‐PS score a | ||||
| I | 155/871 | 17.7 | 602/5665 | 10.6 |
| II | 289/871 | 33.0 | 2859/5665 | 50.5 |
| III | 332/871 | 37.9 | 1591/5665 | 28.1 |
| IV | 92/871 | 10.5 | 578/5665 | 10.2 |
| V | 3/871 | 0.3 | 35/5665 | 0.6 |
| Urgency | ||||
| Elective | 305/876 | 34.8 | 1876/5664 | 64.7 |
| Urgent or emergency | 571/876 | 65.2 | 1735/5664 | 30.6 |
| Surgery | 699/876 | 79.8 | 4501/5666 | 79.4 |
| Nonsurgical procedure | 177/876 | 20.2 | 1164/5666 | 20.5 |
Note: Data presented as number reported/total available data.
Abbreviations: ASA‐PS, American Society of Anesthesiologists ‐ Physical Status score; CPAP, continuous positive airway pressure; ECMO, extracorporeal membrane oxygenation; ICU, intensive care unit; PDA, patent ductus arteriosus; vent., ventilation.
a
Data not reported for n = 2–7 episodes per category.
b
UK data subtracted from full NECTARINE Cohort (n = 6542 episodes in 5609 patients; Disma et al. Br J Anesth 2021 Supplementary Table A; https://doi.org/10.1016/j.bja.2021.02.016).
c
Conventional ventilation n = 126; high frequency oscillatory ventilation n = 2.