Table 2.
Occurrence and characteristics of chronic postoperative pain in 3 months after operation
| Variables | Control group (n = 28) |
Lidocaine group (n = 29) |
p-value | Total |
|---|---|---|---|---|
| Number of people with CPSP | 13 | 6 | 0.04* | 19 |
| NRS | 2.61 ± 0.87 | 2.66 ± 1.37 | 0.92 | |
| Pain degree | 0.56 | |||
| Mild | 11 | 5 | 16 (84.2%) | |
| Moderate | 2 | 1 | 3 (15.8%) | |
| Severe | 0 | 0 | 0 (0.0%) | |
| Location | 0.78 | |||
| Partial incision | 6 | 4 | 10 (52.7%) | |
| Chest wall | 7 | 2 | 9 (47.3%) | |
| Pain form | 0.38 | |||
| Spontaneous pain | 3 | 3 | 6 (31.6%) | |
| Stretch pain | 8 | 3 | 11 (57.9%) | |
| Cough pain | 2 | 0 | 2 (10.5%) | |
| Duration | 0.32 | |||
| Always | 0 | 1 | 1 (5.3%) | |
| Intermittent | 13 | 5 | 18 (94.7%) | |
| Analgesic use | 1.00 | |||
| Unused | 11 | 5 | 16 (84.2%) | |
| Used | 2 | 1 | 3 (15.8%) |
CPSP Chronic postsurgical pain, NRS Numerical rating scales
*Chi-square test, P < 0.05