%0 Journal Article
%T Transient Horner's syndrome in horses following cervical plexus local anesthesia.
%A Pearce DJ
%A Raffetto J
%A Vallance SA
%J Vet Surg
%V 53
%N 4
%D 2024 May 27
%M 38010125
%F 1.618
%R 10.1111/vsu.14053
%X OBJECTIVE: To report the development of transient Horner's syndrome in horses following local anesthesia of the cervical plexus.
METHODS: A total of 37 horses.
METHODS: 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.
CONCLUSIONS: Transient clinical signs of Horner's syndrome were seen following unilateral local anesthesia of the cervical plexus. Long-term adverse sequelae were not observed.