Table 4 Postoperative pain as assessed by visual analog scale (VAS) in patients undergoing OPCAB
Characteristic | Group | Time after surgery | |||
|---|---|---|---|---|---|
6 hours | 12 hours | 18 hours | 24 hours | ||
Control | 20 (0-30) | 20 (0-35) | 20 (0-30) | 10 (0-20) | |
VAS at rest | EI | 15 (0-30) | 10 (0-20) | 10 (0-20) | 0 (0-20) |
PCEA | 0 (0-20) | 0 (0-10)* | 0 (0-18) | 0 (0-18) | |
Control | 30 (0-55) | 30 (20-50) | 30 (20-50) | 30 (20-50) | |
VAS during coughing | EI | 20 (0-40) | 30 (20-40) | 30 (10-50) | 30 (20-40) |
PCEA | 20 (10-40) | 20 (0-30) | 30 (10-40) | 20 (20-40) | |