Prevalence and Characterization of Urinary Tract Infections in Dogs with Surgically Treated Type 1 Thoracolumbar Intervertebral Disc Extrusion

Authors

  • KEVIN S. STIFFLER DVM, Diplomate ACVS,

    1. Department of Small Animal Medicine and Surgery and the Athens Diagnostic Laboratory, University of Georgia, College of Veterinary Medicine, Athens, GA
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  • M.A. McCRACKIN STEVENSON DVM, PhD, Diplomate ACVS,

    1. Department of Small Animal Medicine and Surgery and the Athens Diagnostic Laboratory, University of Georgia, College of Veterinary Medicine, Athens, GA
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  • SUSAN SANCHEZ PhD,

    1. Department of Small Animal Medicine and Surgery and the Athens Diagnostic Laboratory, University of Georgia, College of Veterinary Medicine, Athens, GA
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  • JEANNE A. BARSANTI DVM, MS, Diplomate ACVIM,

    1. Department of Small Animal Medicine and Surgery and the Athens Diagnostic Laboratory, University of Georgia, College of Veterinary Medicine, Athens, GA
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  • ERIK HOFMEISTER DVM,

    1. Department of Small Animal Medicine and Surgery and the Athens Diagnostic Laboratory, University of Georgia, College of Veterinary Medicine, Athens, GA
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  • STEVEN C. BUDSBERG DVM, MS, Diplomate ACVS

    1. Department of Small Animal Medicine and Surgery and the Athens Diagnostic Laboratory, University of Georgia, College of Veterinary Medicine, Athens, GA
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  • Study was supported by a Grant from the University of Georgia College of Veterinary Medicine.

  • Presented at the Resident's Forum at the 39th Annual Scientific Meeting of the American College of Veterinary Surgeons, Denver, CO, October 9, 2004.

  • Dr. McCrackin Stevenson's present address is Laboratory Animal Resources, The University of Montana, 32 Campus Dr., UH116, Missoula, MT 59812.

  • Dr. Stiffler's present address is Veterinary Referral and Critical Care, 1596 Hockett Road, Manakin-Sabot, VA 23103.

Address reprint requests to Dr. Budsberg, DVM, MS, Diplomate ACVS, Department of Small Animal Medicine and Surgery, University of Georgia, College of Veterinary Medicine, Athens, GA 30602-7390.
E-mail: budsberg@vet.uga.edu

Abstract

Objective— To determine the prevalence of urinary tract infections (UTI), factors that correlate positively with UTI, and whether identified UTI are most likely community- or hospital acquired in dogs with surgically treated type 1 thoracolumbar intervertebral disc (IVD) extrusions.

Study Design— Prospective cross-sectional clinical study.

Sample Population— Dogs (n=92) that were surgically treated for a thoracolumbar extradural compressive spinal cord lesion that was consistent with type 1 IVD extrusion.

Methods— Dogs were evaluated for bacterial lower UTI when possible by cystocentesis and urine culture before surgery, and 48–72, 96–120 hours, and 7 days after surgery while hospitalized. Paraparesis, confirmation of thoracolumbar extruded nucleus pulposus, and informed owner consent were required for study inclusion. Urine specimens (n=297) were cultured and both objective and subjective clinical data were obtained.

Results— Prevalence of UTI in dogs with surgically treated type 1 thoracolumbar IVD extrusion was 27% (25 dogs). Temporal prevalence of UTI was 15% (13/89) before surgery, 12% (11/91) at 2–3 days, 16% (12/76) at 4–5 days, and 20% (8/41) at 7 days after surgery. Statistically significant factors affecting UTI prevalence included neurologic and urinary status, sex, administration of perioperative antibiotics, and amount of time body temperature was <35°C during anesthesia.

Conclusion— UTI are common in dogs with surgically treated type 1 thoracolumbar IVD extrusion. Females, dogs that cannot ambulate or voluntarily urinate, dogs not administered perioperative cefazolin, and dogs whose body temperature falls <35°C during anesthesia have a higher incidence of UTI.

Clinical Relevance— All dogs with surgically treated type 1 thoracolumbar IVD extrusion should be monitored for the presence of UTI; however, close attention should be paid to females and dogs that cannot ambulate or voluntarily urinate.

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