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Comparison of postoperative opioid consumption
| Total cumulative dose of morphine (mg) | Groups
|
p-value | |
|---|---|---|---|
| US (n=18) | LM (n=18) | ||
| 3 hours postoperative | 0 | 0.1±0.3 0 (0–1) |
0.151 |
| 6 hours postoperative | 0.2±0.5 0 (0–1) |
1.2±0.7 1 (0–2) |
0.001 |
| 24 hours postoperative | 0.5±0.5 0 (0.5–1) |
2.4±1.1 2.5 (0–4) |
0.001 |
Notes: Value are expressed as mean ± SD and median (minimum–maximum); n = number of subjects; Mann–Whitney U-test.
Abbreviations: LM, landmark; US, ultrasound.
