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Compendium February 2011 (Vol 33, No 2)

Clinical Snapshot—Transient Localized Sweating in a Horse After Administration of Procaine Penicillin

by Valerie Moorman, DVM, MS, DACVS, Allison J. Stewart, BVSc (hons), MS, DACVIM-LAIM, DACVECC, Ram C. Purohit, DVM, PhD, DACVT

    A 13-year-old Tennessee Walking horse gelding was treated for aspiration pneumonia secondary to an acute obstruction in the cranial esophagus that occurred 24 hours previously. The obstruction resolved with hydropulsion and copious lavage for a period of approximately 2 hours. The gelding was treated for pneumonia with gentamicin (6.6 mg/kg IV q24h via a left jugular catheter), metronidazole (15 mg/kg PO q8h), and procaine penicillin G (22,000 IU/kg IM q12h). On the second day of treatment, the gelding developed unilateral sweating over the left caudal neck, shoulder, and pectorals with well-defined borders that did not cross midline.

    The sweating persisted for approximately 6 to 8 hours and then dissipated. The patient recovered uneventfully from the pneumonia with no further signs of sweating.

    1. How can the transient unilateral sweating be explained?

    To see the answers, download the pdf.

    NEXT: Surgical Views: Paranasal Sinus Disease in Horses [CE]


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