Outcome | Placebo (n = 45) | Alfentanil (n = 45) | P value |
---|---|---|---|
Maximum pain score | 5.3 (2.5) | 3.0 (2.5) | <0.001 |
Pain score | Â | Â | Â |
1 right decubitus | 1.8 (2.4) | 0.4 (1.0) | <0.001 |
2 supine | 3.4 (2.6) | 1.4 (2.0) | <0.001 |
3 left decubitus | 5.1 (2.5) | 2.6 (2.2) | <0.001 |
4 prone | 3.0 (2.6) | 1.6 (2.5) | 0.01 |
Volume CO2 insufflation (litre) | 4.6 (1.4) | 4.7 (1.2) | 0.99 |
Pressure at end insufflation (mmHg) | 22 (20–25) | 22 (19–25) | 0.81 |
Procedural time (minutes) | 24.4 (4.2) | 24.8 (4.7) | 0.64 |