• Takaaki Mori, Osamu Nomura, and Takateru Ihara.
• Division of Pediatric Emergency Medicine, Department of Pediatric Emergency and Critical Care Medicine, Tokyo Metropolitan Children's Medical Center, Japan. Electronic address: dr.mori@vietnammedicalpractice.com.
• Am J Emerg Med. 2019 Mar 1; 37 (3): 489-493.

AbstractAlthough ultrasound-guided peripheral nerve block (UGPNB) has recently been introduced into pediatric emergency departments (EDs), knowledge of its use is still limited among pediatric emergency physicians. Ultrasound-guided ulnar nerve block (UGUNB) is a form of peripheral nerve block available for controlling the pain caused by phalangeal injuries, but studies of its use in pediatric patients are still scarce. The aim of this case series was to describe the experience of UGUNB use for pediatric phalangeal fractures in a pediatric ED setting. In all the patients with phalangeal fractures, the ulnar nerve was successfully visualized using a hockey-stick type transducer. Approximately 0.1-0.2 mg/kg of 1% lidocaine was used as the nerve block. The procedure was effective for pain control, and fracture reduction was successfully performed without the need for rescue analgesia. This case series demonstrated that UGUNB has the potential to be a useful alternative to conventional pain management in pediatric fifth digit injuries.Copyright © 2018 Elsevier Inc. All rights reserved.

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