“…The anesthetics for pectoral nerve block were 0.25% bupivacaine or 3.75 mg/mL ropivacaine. Among the 5 RCTs, 4 studies reported pain scores at 1 hour, [15][16][17]23] reported maximal pain scores at 1 to 6 hours and maximal pain scores at 6 to 24 hours, [5,15,17,23] 3 studies reported rescue analgesic, [15,17,23] as well as 2 studies reported nausea and vomiting. [15,17] Jadad scores of the 5 eligible studies varied from 4 to 5, and thus these studies were thought to have high quality.…”