Gaston Labat stated in the forward to his seminal “Regional Anesthesia” textbook, “I do not look forward to the day when regional anesthesia will wholly displace general anesthesia; but undoubtedly it will reach and hold a very high position in surgical practice” (Regional Anesthesia: Its Technic and Clinical Applications. 1922). The development of point-of-care ultrasonography (POCUS) as a technique for guiding regional anesthesia has further advanced the role of nerve blocks as part of a balanced anesthetic by decreasing the risks associated with landmark techniques. This is particularly true in children, in whom the margin of safety for needle placement is often just a few millimeters and the distance between critical structures is even less than in adults.

Particular interest has developed in the use of regional anesthesia in pediatrics as an adjunct to managing postoperative pain and reducing opioid consumption. In addition to constipation, altered mental status, and respiratory...

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