Table 2.
Outcomes of all percutaneous liver tumor microwave ablation procedures
| Entire cohort | General anesthesia | Midazolam group | Propofol group | P value | |
|---|---|---|---|---|---|
| Procedures | 114 | 22 | 32 | 60 | |
| Mean procedure time (min), ± SD | 101 ± 50 | 108 ± 69 | 105 ± 63 | 97 ± 36 | 0.956§ |
| Intraprocedural pain | 12 | – | 11 | 1 | < 0.001‡ |
| First measured postprocedural pain (VAS)* | 1 (0–8) | 0 (0–5) | 3 (0–8) | 1 (0–5) | < 0.001§ |
| Second measured postprocedural pain (VAS)* | 1 (0–7) | 0 (0–2) | 2 (0–7) | 0 (0–5) | < 0.001§ |
| No. of procedures after which the first measured postprocedural pain (VAS) score was ≥ 5–10 | 12 | 1 | 10 | 1 | < 0.001‡ |
| No. of procedures after which the second measured postprocedural pain (VAS) score was ≥ 5–10 | 4 | – | 3 | 1 | 0.101‡ |
| Intraprocedural complication(s) | 5 | – | 1 | 4 | 0.392‡ |
| Pneumothorax | – | – | 1 | 1 | |
| Bleeding | – | – | – | 2 | |
| Respiratory insufficiency | – | – | – | 1 |
Statistics are reported as number (with or without percentage; %)
Min minutes, VAS visual analog scale
*Median (interquartile range, IQR) or †mean (standard deviation, ± SD)
‡Pearson χ2 test between groups; §Kruskal–Wallis test