title: Horner's Syndrome after Superficial Cervical Plexus Block.
abstract: Ultrasound-guided nerve blocks are becoming more essential for the management of acute pain in the emergency department (ED). With increased block frequency comes unexpected complications that require prompt recognition and treatment. The superficial cervical plexus block (SCPB) has been recently described as a method for ED management of clavicle fracture pain. Horner's syndrome (HS) is a rare and self-limiting complication of regional anesthesia in neck region such as brachial and cervical plexus blocks. Herein we describe the first reported case of a HS after an ultrasound-guided SCPB performed in the ED and discuss the complex anatomy of the neck that contributes to the occurrence of this complication.
authors.affiliation: Highland Hospital-Alameda Health System, Department of Emergency Medicine, Oakland, California.
authors.forename: Stefan
authors.initials: S
authors.lastname: Flores
authors.affiliation: Highland Hospital-Alameda Health System, Department of Emergency Medicine, Oakland, California ; Alta Bates Medical Center, Department of Emergency Medicine, Oakland, California.
authors.forename: Christine
authors.initials: C
authors.lastname: Riguzzi
authors.affiliation: Highland Hospital-Alameda Health System, Department of Emergency Medicine, Oakland, California ; University of California, San Francisco, Department of Emergency Medicine, San Francisco, California.
authors.forename: Andrew A
authors.initials: AA
authors.lastname: Herring
authors.affiliation: Highland Hospital-Alameda Health System, Department of Emergency Medicine, Oakland, California ; University of California, San Francisco, Department of Emergency Medicine, San Francisco, California.
authors.forename: Arun
authors.initials: A
authors.lastname: Nagdev
mesh_terms: D000328:Adult; D000779:Anesthetics, Local / Q000008:administration & dosage / Q000009:adverse effects*; D001917:Brachial Plexus / Q000000981:diagnostic imaging / Q000187:drug effects; D066008:Cervical Plexus Block / Q000009:adverse effects* / Q000379:methods*; D004636:Emergency Service, Hospital; D006732:Horner Syndrome / Q000139:chemically induced / Q000175:diagnosis* / Q000209:etiology*; D006801:Humans; D008297:Male; D012075:Remission, Spontaneous; D020069:Shoulder Pain / Q000628:therapy*; D013997:Time Factors; D018084:Ultrasonography, Interventional / Q000379:methods; D057832:Watchful Waiting
chemical_list: D000779:Anesthetics, Local