Table 1.
Basic Characteristics
| Variables | RISS (n=49) | Control Group (n=49) | P |
|---|---|---|---|
| Age, mean ± SD | 52.10 ± 14.78 | 54.06 ± 12.44 | 0.654 |
| Sex, male, n (%) | 20 (40.8%) | 23 (46.9%) | 0.541 |
| Body mass index (kg/m2), mean ± SD | 25.05 ± 3.99 | 24.16 ± 3.87 | 0.265 |
| Comorbidities, n (%) | 19 (38.8%) | 20 (40.8%) | 0.836 |
| Hypertension, n (%) | 13 (26.5%) | 15 (30.6%) | 0.655 |
| Diabetes, n (%) | 9 (18.4%) | 6 (12.2%) | 0.400 |
| Surgical duration (min), mean ± SD | 109.18 ± 36.33 | 107.76 ± 40.79 | 0.855 |
| Anesthesia duration (min), mean ± SD | 150.20 ± 43.77 | 142.45 ± 42.56 | 0.376 |
| ASA class I /II, n (%) | 44 (89.8%) | 44 (89.8%) | > 0.999 |
| Surgical incision (left/right chest) | 16/33 | 20/29 | 0.402 |
| Intraoperative fluid volume (mL), mean ± SD | 900.00 ± 328.35 | 861.22 ± 414.99 | 0.420 |
| Intraoperative blood loss (mL), mean ± SD | 33.47 ± 36.19 | 24.08 ± 19.38 | 0.468 |
| Total intraoperative analgesic, mean ± SD | |||
| Sufentanil (µg) | 21.43 ± 3.39 | 23.37 ± 3.87 | 0.002 |
| Remifentanil (µg) | 750.21 ± 287.48 | 1049.41 ± 459.26 | < 0.001 |
| Total postoperative analgesic dose, mean ± SD | |||
| Sufentanil (µg) | 48.06 ± 10.55 | 160.41 ± 32.40 | < 0.001 |
| Postoperative analgesia pump press times, mean ± SD | |||
| 24 h | 0.08 ± 0.28 | 0.80 ± 0.76 | < 0.001 |
| 48 h | 0.10 ± 0.37 | 1.78 ± 0.74 | < 0.001 |