Table 6 Correlation between Craniocaudal dye spread and patient satisfaction with the overall analgesic technique in each ESPB group
|  | Standard volume group (n = 20) | High volume group (n = 20) | ||
|---|---|---|---|---|
R | p | R | p | |
Craniocaudal dye spread vs. patient satisfaction | −0.357 | 0.122 | −0.008 | 0.972 |