Wound Dressing

Wound Dressing


Occlusive Dressings



Basic Information image



Procedure




• Hydrogels (Polyethylene oxide occlusive dressings)


image 3D network of hydrophilic polymers with 90% to 95% water content

image Available as sheets or gels

image Sheet hydrogels believed to possess most of the properties of an ideal wound dressing (eg, BioDres, DVM Pharmaceuticals, Inc. Miami, FL; Tegagel dressing, 3M Center St. Paul, MN; Nu-gel, Johnson & Johnson Products Inc, New Brunswick, NJ). When applied to dry wound they effectively hydrate it, creating an environment for moist wound healing.

image Amorphous hydrogels also possess a “moisture donor” effect for necrotic wounds that require autolytic debriding.

image Hydrogels containing acemannan (CarraVet, Veterinary Products Laboratories, Phoenix, AZ; Carrasorb, Carrington Laboratories, Irving, TX) stimulate healing over exposed bone.

image Some hydrogels contain hyaluronic acid and chondroitin sulfate within a chemically crosslinked glycosaminoglycan (GAG) hydro-film (Tegaderm, 3M Center, St. Paul, MN), which reportedly increases epithelialization and fibroplasia compared to Tegaderm alone.

image Other products contain gauze impregnated with a hydrogel (eg, FasCure, Ken Vet, Greeley, CO; Curafil, Tyco Healthcare Kendall, Mansfield, MA) and another contains 25% propylene glycol (Solugel, Johnson & Johnson Medical, North Ryde, Australia).

image A study evaluating the effects of Solugel on second intention healing in horses found no beneficial effects when compared to the control saline-soaked gauze dressing.

image In another study on equine limb wounds, the hydrogel sheet dressing (BioDres, DVM Pharmaceuticals, Inc.) was associated with excess exudate and prolonged wound healing (2× compared to controls) along with an increased need to trim exuberant granulation tissue, believed to result from continued application of the BioDres during the repair phase.
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Jul 24, 2016 | Posted by in SMALL ANIMAL | Comments Off on Wound Dressing

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