Table 1 Patient characteristics and intraoperative parameters related to surgery and anaesthesia
Full cohort n = 711 | Missing data | |
|---|---|---|
Age (yrs.), median (IQR) | 40 (32–49) | 12 |
Sex, n (%) | 12 | |
Male | 199 (28) | |
Female | 500 (72) | |
BMI (kg/m2), median (IQR) | 45 (41–49) | 12 |
ASA, n (%) | 12 | |
II | 416 (60) | |
III | 278 (40) | |
IV | 5 (1) | |
Comorbidities, n (%) | 12 | |
Hypertension | 353 (50) | |
T2DM | 200 (29) | |
Dyslipidaemia | 89 (13) | |
OSAS | 144 (21) | |
COPD | 32 (5) | |
Reflux/hiatal hernia | 352 (50) | |
Previous gastric banding, n (%) | 83 (12) | 12 |
Surgery time (min), median (IQR) | 145 (120–173) | 12 |
Gastric bypass, n (%) | 25 | |
Laparoscopic | 676 (99) | |
Conversion to open | 10 (1) | |
Blood loss (ml), median (IQR) | 25 (10–50) | 14 |
Monitoring, n (%) | 12 | |
Arterial Catheter | 540 (77) | |
Central venous catheter | 98 (14) | |
Pulmonary artery catheter | 3 (< 1) | |
Intubation, n (%) | 16 | |
Rapid sequence induction, conventional laryngoscopy | 360 (52) | |
Awake fibreoptic | 215 (31) | |
Conventional induction, conventional laryngoscopy | 69 (10) | |
Rapid sequence induction with Sensascope® | 28 (4) | |
Conventional induction, with Sensascope® | 13 (2) | |
Conventional induction, asleep fibreoptic | 9 (1) | |
Mallampati, n (%) | 228 | |
I | 146 (30) | |
II | 216 (45) | |
III | 100 (21) | |
IV | 21 (4) |