Research Article

Expert-Performed Endotracheal Intubation-Related Complications in Trauma Patients: Incidence, Possible Risk Factors, and Outcomes in the Prehospital Setting and Emergency Department

Table 2

Demographic characteristics of trauma patients, according to occurrence of ETI-related complications.

Number of ETI-related complications
≥ 1 (n =126)0 (n =411)P value

Age, years59 (32–74)60 (37–73)0.864
Male, n (%)80 (63.5)291 (70.8)0.121
Etiology of trauma, n (%)0.499
 Blunt injury102 (81.0)327 (79.6)
 Penetrating injury7 (5.6)25 (6.1)
 Burn17 (13.5)59 (14.4)
Anatomic parameters
AIS
 Head or neck3 (0–5)2 (0–5)0.036
 Face0 (0–1)0 (0–1)0.288
 Chest3 (0–4)3 (0–4)0.665
 Abdomen or pelvic contents0 (0–2)0 (0–2)0.526
 Extremities or pelvic girdle2 (0–3)1 (0–3)0.870
 External0 (0–0)0 (0–0)0.679
 ISS36 (25–45)29 (22–42)0.005
Physiological parameters
 GCS8 (3–12)12 (6–14)< 0.001
Initial recorded vital signs
Systolic blood pressure, mmHg (mean [SD])126 (41)125 (40)0.916
Heart rate, beats/min101 (85–120)92 (78–116)0.011
Shock index0.8 (0.6–1.1)0.8 (0.6–1.0)0.267
Respiratory rate, breaths/min24 (20–30)22 (18–30)0.072
Pulse oximetry saturation, %100 (95–100)100 (98–100)0.128
RTS5.9 (4.2–6.9)6.5 (5.1–7.8)< 0.001
Ps, %59.0 (18.8–85.4)80.9 (40.4–95.0)< 0.001
Charlson comorbidity index0 (0–1)0 (0–1)0.579
Off-hours presentation, n (%)76 (60.3)246 (59.9)0.926
Emergency operation, n (%)54 (42.9)204 (49.6)0.183
Prehospital ETI43 (34.1)94 (22.9)0.011
Prehospital times
From emergency call to scene arrival, min9 (7–13)10 (7–13)0.877
From scene arrival to departure, min12 (7–19)12 (7–21)0.96
From scene departure to hospital arrival, min12 (8–22)14 (8–24)0.473
Total prehospital time, min37 (27–57)38 (27–59)0.652
Characteristics of ETI
Three or more ETI attempts12 (9.5)2 (0.5)< 0.001
ETI method0.005
Without medication45 (35.7)90 (21.9)
Sedative/analgesic only28 (22.2)80 (19.5)
Paralytic agent only9 (7.1)31 (7.5)
Rapid sequence intubation technique44 (34.9)210 (51.1)
Hospital length of stay, days42 (12–63)43 (19–79)0.550

Data are expressed as the median (interquartile range) unless otherwise indicated.
AIS: Abbreviated Injury Scale, ED: emergency department, ETI: endotracheal intubation, GCS: Glasgow Coma Scale Score, ISS: Injury Severity Score, Ps: probability of survival, RTS: Revised Trauma Score, SD: standard deviation.
6:01 PM to 8:00 AM on weekdays plus all weekend hours.
Adjusted standardized residual > 1.96, adjusted standardized residual < −1.96.