Horner's Syndrome Associated with Disseminated Thoracic Melanoma in a Lipizzaner Horse

Transient Horner's syndrome in horses following cervical plexus local anesthesia

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.

Negative pressure wound therapy for patients with mediastinitis: A meta-analysis

To evaluate clinical effects between conditional treatment and negative pressure wound therapy for mediastinal infection. Multiple databases were searched to identify relevant studies, and the articles that eventually satisfied the criteria were included. All the meta-analyses were conducted with the Review Manager 5.2. To estimate the quality of each article, risk of bias table was performed. Finally, nine studies including 648 patients met the eligibility criteria. The negative pressure wound therapy (NPWT) group and the control group included 353 and 295 patients, respectively. The meta-analysis showed no significant difference in operative time (RR = -6.13, 95%CI [-50.00, 37.74], P = .78; P for heterogeneity <.000001, I2 = 100%). The length of hospital stay (MD = -3.07, 95%CI [-4.38, -1.77], P < .00001; P for heterogeneity = .99, I2 = 0%), re-infection (RR = 0.18, 100%CI [0.08, 0.40], P < .00001; P for heterogeneity = 0.48, I2 = 0%), and mortality were significantly different between the two groups (RR = 0.27, 95%CI [0.12, 0.63], P of overall effect = .002). NPWT is a better therapy than conventional treatment for mediastinitis.