Table 3.
Intra-operative variables
| Variable | Morbidly obese, n = 183 | Super morbidly obese, n = 96 | P value |
|---|---|---|---|
| Premedication: midazolam (mg) | 0.3 ± 0.9 | 0.2 ± 0.6 | 0.508 |
| Difficult Intubation, n (%) | 08/183 (4.4) | 08/96 (8.3) | 0.176 |
| Cormack-Lehane grade | |||
| Grade I | 93/183 (50.8) | 44/96 (45.8) | 0.639 |
| Grade II | 74/183 (40.4) | 46/96 (47.9) | |
| Grade III | 14/183 (7.7) | 05/96 (5.2) | |
| Grade IV | 02/183 (1.1) | 01/96 (1.0) | |
| Airway intubation method, n (%) | |||
| Regular laryngoscope | 138/183 (75.4) | 57/96 (59.4) | 0.033 |
| Video -assisted | 37/183 (20.2) | 29/96 (30.2) | |
| Fibre-optic intubation | 05/183 (2.7) | 06/96 (6.3) | |
| Retro molar device | 03/183 (1.6) | 04/96 (4.2) | |
| Total crystalloids (mL) | 2293.7 ± 778.1 | 2694.8 ± 835.8 | ˂ 0.001 |
| Total blood loss (mL) | 19.8 ± 97.4 | 59.0 ± 321.2 | 0.367 |
| Total urine output (mL) | 103.4 ± 272.9 | 190.1 ± 385.2 | 0.017 |
| Total anaesthesia time (min) | 127.7 ± 38.1 | 137.6 ± 42.6 | 0.033 |
| Total surgery time (min) | 102.7 ± 35.1 | 107.2 ± 39.3 | 0.366 |
Values are either mean ± SD or number and percentage. P ˂ 0.05 considered statistically significant
Cormack and Lehane, Grade 1: most of the glottic opening can be seen with. Grade 2, only the posterior portion of the glottis or only arytenoid cartilages are visible. Grade 3, only the epiglottis but no portion of the glottis is visible, whereas in Grade 4, neither the glottis nor the epiglottis can be see