Table 2 Gastric antral cross-sectional area, laparoscopic surgical grade and amount of gastric volume
Ventilation group (n = 119) | Apnea group (n = 111) | P-value | |
|---|---|---|---|
Cross-sectional area; cm2 | |||
Pre-induction (PI) Post-intubation (PT) Changes* | 3.97 (1.36) 4.01 (1.45) 0.04 (0.3) | 4.16 (1.32) 4.15 (1.41) 0.02 (0.28) | 0.36 0.502 0.225 |
Laparoscopic surgical grade | |||
1 2 3 4 | 43 (36%) 68 (57%) 8 (7%) 0 (0) | 52 (47%) 52 (47%) 7 (6%) 0 (0) | 0.249 |
Gastric volume; mL | |||
Air Fluid Total | 16.4 (17.6) 14.1 (18.0) 30.5 (28.6) | 15.6 (13.5) 13.9 (16.7) 29.5 (25.8) | 0.779 0.990 0.943 |