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@ 1960¶s Moist wound healing 1990¶s Advanced technological products 1999¶s Wound Bed Preparation »Tissue engineered products
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| Coagulation: 0-2 hours Inflammation: 0-3 days Cell migration and proliferation: 3-21 days Angiogenesis Remodeling: 21 days -1.5 years
Age
Body Build Stress Nutrition
Medications
Tissue Oxygenation Immunity Concomitant Disease
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Traditional Treatment Modalities ± Hydrogels: Normlgel, Hypergel, Clearsite, etc ± Hydrocolloids: Duoderm, Comfeel, Restore, Tegasorb, Replicare ± Transparent films: Opsite, Tegaderm, bioclusive, epiview ± Wet to dry dressing ± Foam dressings: Allevyn, Biatain, Hydrasorb, etc. ± Calcium alginates: Sorbsan, AlgiSite, Curasorb, Kaltostat ± Enzymatic: Santyl, Panafil, Accuzyme, Gladase, ± Biological: Maggot therapy ± Antibacterial: Acticoat, Iodosorb, Prisma
Normlgel, Hypergel, Clearsite, Curasol gel, Solosite, Intrasite, Hydrogel, Nu-Gel, Skintegrity, Clearsite, etc
Hydrophillic / glycerin based gels High water content, viscosity varies by manufacturer Limited absorptive capacity Autolytic debridement of necrotic / slough tissues Partial or full thickness wounds Hydrogels help maintain a moist wound healing environment for granulation, epithelialization, and facilitation of autolytic debridement.
Flexderm, Vigilon, Flexigel, Curasol Gel, Restore, CarraGauze, etc
Higher rate of absorption Cooling, soothing effect on superficial wounds
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Duoderm, Comfeel, Restore, Tegasorb, Replicare, NuDerm, Dermatell, Curaderm, Hydrocol
Components of gelatin, pectin or cellulose More occlusive compare to other dressings Waterproof Partial thickness wounds with low - moderate exudate Contraindicated for clinical infected wounds Conformable Adhesive, may damage fragile periwound skin
Advanced wound care device comprised of a sterile freeze dried composite of 45% oxidized regenerated cellulose (ORC) and 55% collagen. ± Maintains moist microenvironment at the wound surface ± Enhances granulation tissue formation, epithelization and rapid wound healing.
PRISMA: Anti-Bacterial property
á Opsite, Tegaderm, Bioclusive, Epiview
á Polyurethane or co-polyester composition Waterproof and gas permeable Superficial wounds with no / minimal exudate Promote autolysis of necrotic / slough tissue Permit evaluation of wound progress Can tear healthy skin if improperly removed Occlusion may reduce pain
á Autolytic Debridement
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Sorbsan, AlgiSite, Curasorb, Kaltostat, Gentell, Restore, SeaSorb, Maxorb, Curasorb, AlgiDerm
Non-woven fibers V V V Useful for filling moderate exudate wounds Interact with fluid to form a gel-like Safe to use with clinical infected wounds Will not debride hard eschar
Hydrofiber Dressing
á Nanocrystalline Silver Slow release cadexomer iodine
i Centuries of proven imicrobilcivi Cytotoxicity concerns associated with carriers not silver - ex. Silver nitrate, Silver sulfadiazine15 Traditional delivery required repeated applications due to binding with chlorine and proteins Contemporary silver dressings allow for continued release up to 7 days Broad spectrum - inactivates almost all know bacteria including MRSA and VRE15 No documented cases of bacterial resistance15 Ex: Silver Cel, Acticaot G
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Commonly used in variety of wounds Effective against broad range of resistant organisms Painless upon application Difficult to remove May form pseudoeschar
Used in 1943 in treatment of burns Wide spectrum of activity No known bacterial resistance Staining of skin Frequent dressing changes Not effective with eschar
| Enzymatic Panafil, Accuzyme, Gladase, Kovia ointment, Ziox ointment, Ethezyme
i decreased size of silver particles leads to increased proportion of surface atoms compared with internal atoms1 Magnification of Normal Silver
it is believed that the nanocrystalline structure is responsible for the rapid and long lasting action1 Broad spectrum - inactivates almost all know bacteria including MRSA and VRE Magnification of Nanocrystalline Silver (<1 micron) @
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| Growth Factor/Cytokine Preparations: ± Regranex ± Procurren Solutions Dermal Equivalent Skin Substitutes ± Alloderm: Decellularized cadaver dermis ± Biobrane: acellular, porcine collagen chemically bound to nylon mesh ± Dermagraft: Human fibroblasts on matrix mesh ± Integra: biovine collagen and chondroitin-6-sulfate ± Oasis ± Graft-Jacket, Mediskin, EZ derm, Primatrix Bilayered Skin Substitutes ± Apligraf: Human fibroblasts and keratoinocytes in a bovine collagen matrix.
á ! Tissue engineered xenografts ± Oasis, MediSkin, EZ Derm Tissue engineered allografts ± Apligraf, Dermagraft, GammaGraft, Alloderm Tissue engineered acellular dermal replacements: ± GraftJacket, GammaGraft, Integra, Primatrix
0 : Freeze dried porcine xenograft, stored at room temperature, long shelf life.
0 2 : Porcine xenografts, long shelf live, stored at room temperature
0 R: frozen epidermal/dermal porcine modified xenograft; must be kept frozen at less than 32 degrees Fahrenheit, thawed at room temperature 1-2 hours prior to application.
Small Intestine Submucosa ± Derived from porcine small intestine ± Complex matrix of collagen, growth factors and other proteins
0 ` : Bi-layered laminate of epidermis and dermis and grown from neonatal foreskin; shelf life up to 10 days when stored in its own shipping container.
0 : human fibroblast derived dermal skin substitutes
0 : Contains dermal elements and no epidermis, allow rapid revascularization and cell re-popularization, can use on tendons, capsule, exposed bone
Bilayered living skin substitute ± Epidermal layer of human keratinocytes ± Dermal layer of human fibroblasts ± Bovine type I collagen lattice
Mechanism of Action ± Provide a collagen scaffolding ± Provide cellular structures ± Release growth factors from cell
" Dermagraft, when implanted into an adequately prepared diabetic foot ulcer, assists in the restoration of the dermal bed allowing the patient¶s wound to reepithelialize. Derived from foreskin
! # " DERMAGRAFT is indicated for use in the treatment in fullthickness diabetic foot ulcers greater than six weeks duration which extend through the dermis, but without tendon, muscle, t capsule, or bone exposure. DERMAGRAFT should be used in conjunction with standard wound care regimens and in patients that have adequate blood supply to the involved foot.
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0 `: Freeze dried de-cellularized human product. Defined as human allogeneic skin; acellular tissue; allograft.
0 : Irradiated human skin allograft from human cadaveric donors. Stored in a foil pouch at room temperature for up to 2 years.
0 ! : Bilayer Matrix (Integra Bilayer Matrix Wound Dressing²Intergra BMWD and Single layer Wound Dressing)
0 a : acellular dermal matrix from fetal bovine skin, stored at room temperature up to 2 years.
| Fibrin Glue: Combination of fibrinogen, calcium and thrombin Fibrin Gel: Combination of calcium and thrombin and autologous plasma. Platelet Gel: Autologous blood is collected and centrifuged to isolate platelet rich plasma and then combined with thrombin.
@%&' PDGF-BB: Recombinant Human PlateletDerived Growth Factor 1997 Stimulates mesenchymal cells
# á á ( #á Increases mast cell degranulation ± ± ± ± ± ± ±
Vascular permeability Realease of mitogenic growth factors Migration of macrophages and fibroblasts Capillary density Calcium up take in fibroblasts Collagen synthesis Tensile strength and elasticity of collagen
40 KHz Effective in reducing bacterial load, stimulate debridement, induce granulation buds.
%)| Superoxidized Water (Dermacyn; Oculus Innovative Sciences, Petaluma, Calif) ± Flush wounds under 8 pounds per square inch of pressure (twice weekly) AND/OR ± Sock wounds with superoxidized water for 30 minutes AND/OR ± Use as wet dressing to the wound daily
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48 hour dressing changes Aggressive reduction in interstitial fluids Can be used for any size of wound Can be used on infected wound (12 hour change) Can treat more than one wound at a time.
*&+! + ,! ,á * -(' Contraindications: ± Fistulas to organs or body cavities ??? ± Necrotic tissue with eschar present: Need debridement ± Untreated Osteomyelitis ± Malignancy in the wound ± Application of dressing over exposed arteries or veins.