Table 3.
Characteristics of the surgical procedure and postoperative cognition
| VV group (n=79) | CV group (n=83) | P-value | |
|---|---|---|---|
| Duration of surgery (min) | 167.2±65.3 | 159.6±80.2 | 0.51 |
| Duration of anesthesia (min) | 192.4±66.4 | 189.3±59.9 | 0.76 |
| Estimated blood loss (ml) | 298.3±107.5 | 314.3±134.4 | 0.41 |
| Duration of hospital stay (days) | 10.3±3.4 | 10.7±3.9 | 0.49 |
| Anaesthetic | |||
| Propofol (TIVA) | 30 (38.0%) | 34 (41.0%) | |
| Volatile anaesthesia | 49 (62.0%) | 49 (59.0%) | 0.70 |
| Drugs | |||
| Fentanyl | 60 (75.9%) | 55 (66.3%) | |
| Remifentanil | 19 (24.1%) | 28 (33.7%) | 0.17 |
| Postoperative delirium (DSM-IV) | 12 (16.5%) | 24 (28.9%) | 0.036* |
| POCD 7th postoperative day | 14 (17.7%) | 26 (31.3%) | 0.045* |
TIVA: total intravenous anesthesia; VV, variable ventilation; CV, conventional ventilation; POCD, Postoperative Cognitive Dysfunction; DSM, Diagnostic and Statistical Manual of Mental Disorders. P-values were calculated by Chi-square test or Mann-Whitney U-test.
*
P value<0.05.