Pearce DJ, Raffetto J, Vallance SA. Transient Horner's syndrome in horses following cervical plexus local anesthesia.
Vet Surg 2024;
53:642-647. [PMID:
38010125 DOI:
10.1111/vsu.14053]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 10/10/2023] [Accepted: 11/09/2023] [Indexed: 11/29/2023]
Abstract
OBJECTIVE
To report the development of transient Horner's syndrome in horses following local anesthesia of the cervical plexus.
ANIMALS
A total of 37 horses.
STUDY DESIGN
Observational retrospective short case series.
METHODS
Medical records of cases undergoing ultrasound-guided cervical plexus anesthesia for standing prosthetic laryngoplasty at a single referral institution were evaluated (2019-2020).
RESULTS
Five of 37 horses (14%) developed transient signs of Horner's syndrome postoperatively. Obvious clinical signs began 2 to 5 h following local anesthesia and persisted for two to 4 h. Profuse unilateral sweating of the head and upper neck was the most apparent clinical sign.
CONCLUSION
Transient clinical signs of Horner's syndrome were seen following unilateral local anesthesia of the cervical plexus. Long-term adverse sequelae were not observed.
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