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Measurement of distal limb sub‐bandage pressure over 96 hours in horses
Author(s) -
Canada N.C.,
Beard W.L.,
Guyan M.E.,
White B.J.
Publication year - 2017
Publication title -
equine veterinary journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.82
H-Index - 87
eISSN - 2042-3306
pISSN - 0425-1644
DOI - 10.1111/evj.12601
Subject(s) - bandage , medicine , compression bandage , compression (physics) , dorsum , pressure measurement , pressure sensor , biomedical engineering , surgery , anesthesia , materials science , anatomy , mechanical engineering , physics , engineering , composite material , thermodynamics
Summary Reasons for performing study Currently, there is no objective information quantifying pressures exerted by distal limb bandages. Objectives To quantify the pressure exerted by each compression layer, a polo wrap (DLP), a compression bandage (DLC), and to measure the effect of time on sub‐bandage pressure. Study design Longitudinal observational experiment. Methods A DLC construct included a cotton roll compressed with brown gauze and elastic layers and the DLP construct included a pillow pad compressed by a cloth wrap. Dorsal and lateral sensors were placed on the mid‐metacarpus. In healthy horses, sub‐bandage pressures were recorded during application (n = 8) and at scheduled time points over the 24 (n = 9) and 96 h periods (n = 8). A generalised linear model was used to evaluate associations between pressure and sensor location, bandage type and time (P<0.05). Results For the DLC, dorsal and lateral sensor pressures were 187 mmHg (95% CI 185–189 mmHg) and 142 mmHg (95% CI 133–151 mmHg). Combined sensor pressure after application of the brown gauze was 80 mmHg (95% CI 75–85 mmHg) and rose to 165 mmHg (95% CI 160–170 mmHg) after the elastic layer. Combined pressure at the end of the 96 h period was 135 mmHg (95% CI 123–147 mmHg). For the DLP bandage, location but not time was significant. Combined pressures ranged between 75 mmHg (95% CI 53–97 mmHg) and 85 mmHg (95% CI 63–107 mmHg). Conclusions Pressure distribution was not uniform. The DLP pressures were maintained for a 24 h period. The DLC maintained high pressures for 96 h, but a significant decrease in pressure occurred between 6 and 12 h. Providing there are no other reasons to change a bandage, a 4 day interval between bandages may be appropriate if maintaining distal limb compression is the principal indication.