Table 4.
Block-related data
| Lateral QLB, n=32 | Posterior QLB, n=32 | P | |
| Successful block before surgerya | 29 (90.6%) | 29 (90.6%) | >0.999 |
| Onset time (min) | 10 [6 to 15] [2] | 10 [5 to 13] [4] | 0.758 |
| Time to fixed sensory block (min) | 19 [15 to 25] [6] | 21 [15 to 30] [8] | 0.290 |
| Range of blocked dermatomes, n | 5 [3 to 6] | 4 [3 to 6] | 0.189 |
| Successful block at 24 h after surgerya | 4 (12.5%) | 9 (28.1%) | 0.120 |
Data are number (%) or median [IQR]. Single numbers in square brackets indicate patients with missing data. QLB, quadratus lumborum block.
a
Defined as decreased or loss of pinprick sensation in the area, which covered the main incision of surgery in the lateral abdomen just below the tip of the 12th rib.