{Reference Type}: Journal Article
{Title}: Transient Horner's syndrome in horses following cervical plexus local anesthesia.
{Author}: Pearce DJ;Raffetto J;Vallance SA;
{Journal}: Vet Surg
{Volume}: 53
{Issue}: 4
{Year}: 2024 May 27
{Factor}: 1.618
{DOI}: 10.1111/vsu.14053
{Abstract}: <B>OBJECTIVE: </B>To report the development of transient Horner's syndrome in horses following local anesthesia of the cervical plexus.<BR><B>METHODS: </B>A total of 37 horses.<BR><B>METHODS: </B>Observational retrospective short case series.<BR><B>METHODS: </B>Medical records of cases undergoing ultrasound-guided cervical plexus anesthesia for standing prosthetic laryngoplasty at a single referral institution were evaluated (2019-2020).<BR><B>RESULTS: </B>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.<BR><B>CONCLUSIONS: </B>Transient clinical signs of Horner's syndrome were seen following unilateral local anesthesia of the cervical plexus. Long-term adverse sequelae were not observed.