Pain at 12 and 24 hours
All the identified RA techniques were evaluated for this outcome.
Pain at 12 postoperative hours was evaluated for the ESP block in three studies, PIF block in four studies, TTMP block in five studies, and PECS I block in one study. Pain at 24 postoperative hours was evaluated in two studies with an ESP block group, in four studies with a PIF block group, in six studies with a TTMP block group, and one study with a PECS I block group. However, there were no statistically significant differences in any of these comparisons.