Ultrasound-guided...
Due to the introduction of ultrasound, the acquisition of new anatomy and sonoanatomy knowledge, as well as recent discoveries on the role of the fascia, regional anesthesia has undergone a process of "evolution-revolution" in the last decade and now is playing a key-role in surgery and postoperative pain management, allowing opioid-sparing or opioid-free strategies, in line with the ERAS pathway.