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Subtourniquet pressures generated by application of wide-rubber tourniquets in standing, sedated horses.
Plunkett, Amanda H; Schoonover, Mike J; Young, Jenna M; Taylor, Jared D; Holbrook, Todd C.
Affiliation
  • Plunkett AH; Department of Veterinary Clinical Sciences, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, Oklahoma.
  • Schoonover MJ; Department of Veterinary Clinical Sciences, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, Oklahoma.
  • Young JM; Department of Veterinary Clinical Sciences, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, Oklahoma.
  • Taylor JD; Department of Veterinary Pathobiology, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, Oklahoma.
  • Holbrook TC; Department of Veterinary Clinical Sciences, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, Oklahoma.
Vet Surg ; 48(3): 417-423, 2019 Apr.
Article in En | MEDLINE | ID: mdl-30773652
ABSTRACT

OBJECTIVE:

To determine the influence of location and movement on subtourniquet pressure (STP) generated by application of a wide-rubber tourniquet (WRT) on equine limbs. STUDY

DESIGN:

Randomized experimental cross-over design. ANIMALS Six standing, sedated horses.

METHODS:

Horses were sedated with detomidine hydrochloride (0.2 µg/kg IV), and 4 investigators applied WRTs to the antebrachium (AB), gaskin (GK), and midmetacarpus (MC) of each horse in a predetermined, randomized order. Subtourniquet pressure was consequently measured at 10-minute intervals (T0, T10, T20, T30) for 30 minutes. Indirect systolic blood pressure (SBP) was measured presedation, postsedation, and throughout the tourniquet application period. Target STP was established as SBP + 100 mm Hg. Limb movements at each location were classified as none, low, moderate, or high, on the basis of counts and magnitude.

RESULTS:

Mean STP did not change with time (P = .93) and exceeded SBP by 163 mm Hg (95% CI 122-205), 185 mm Hg (95% CI 156-214), and 402 mm Hg (95% CI 351-454) at the AB, GK, and MC, respectively. Mean STP at each location exceeded the target STP in 59 of 70 (81%) of the trials. Limb movements affected STP generated by tourniquets at the AB (P = .04) and MC (P < .0001) but not at the GK (P = .67).

CONCLUSION:

Wide-rubber tourniquets applied at the AB, GK, and MC generated STP >100 mm Hg above SBP for 30 minutes in standing, sedated horses. CLINICAL

SIGNIFICANCE:

Wide-rubber tourniquets as applied in this study can achieve and maintain the current recommended STP (SBP + 100 mm Hg) for equine IV regional limb perfusion. Number and magnitude of limb movement can decrease STP over time, potentially reducing the efficacy of a WRT.
Subject(s)

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Pressure / Tourniquets / Horses Limits: Animals Language: En Journal: Vet Surg Year: 2019 Document type: Article

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Pressure / Tourniquets / Horses Limits: Animals Language: En Journal: Vet Surg Year: 2019 Document type: Article