This document discusses wound dressing selection based on the phase of wound healing. It outlines the four main phases of wound healing: hemostasis, inflammation, proliferation, and maturation. For each phase, it describes the pathophysiology, targets for dressing, and examples of appropriate dressings. The key principles are that wound dressing must be selected based on ongoing assessment of the wound's individual needs and stage in the healing process, as no single product is suitable for all wounds or phases of healing.
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wound dressing selection.pdf
1. Wound dressing selection
-based on healing phase
General surgery IC: Lao Chi Tong
Tutor: Dr Pang Heong Keong
Date: 2022/06/17
Department: general surgery
2. Ancient dressing
According to one of the oldest medical papers
dated 2200 BC, the science of wound healing is
reported as “three healing gestures.” The three
healing gestures are cleaning the wound, sticking
plaster, and bandaging the wound
Mesopotamian used clay tablet to treat wounds in
2500 BC. They washed wounds with milk or water
before dressing with the resin and honey.
Hippocrates of ancient Greece used wine or
vinegar to clean wounds in 460–370 BC.21
8. Principle of dressing choice
Every wound is unique
Should be assessed and treated individually, principally correcting the underlying
causes and systematically ~ by Halim, Khoo & Saad, 2012
Accurate, ongoing assessment of the needs of the wound
No single product is suitable for all wounds or all stage of healing process
Adequate knowledge of the functions and performance of the dressing
Journal wound care Vol 15, Feb 2006. Jones AM, San Miguel L
11. Hemostasis phase
Following wound creating immediately
Hemostasis phase is an attempt to limit damage by stopping bleeding
Local arteriolar and capillary vasoconstriction
Erythrocytes and platelet adhere to the damaged endothelium
Thromboxane A2, prostaglandin F2 -> platelet aggregation and vasoconstriction
Secondary hemostasis by clotting cascade
Active platelet cause vasodilation and increase vascular permeability
Plasma leakage from intravascular space to extracellular compartment due to
permeability
12. Hemostasis phase
For hemostasis:
Collagen patch (Hemopatch)
Fibrinogen and thrombin sponge patch (Tachosil)
Oxidized regenerated cellulose (Surgicel)
Provide frame for platelet aggregation
13. Hemostasis phase
Dressing target in hemostasis phase:
Cover and protection
Provide moist wound healing environment
Loss of skin barrier function
Absorb exudate/blood
14. Hemostasis phase
Dressing selection:
Semi-permeable films + Pad/ absorption gauze:
Composed of a transparent polyurethane coating with a layer of adhesive
Allow inspection of the wound
Permeable to gases and vapor, waterproof, impermeable to liquid and bacteria
Hydrocolloid
contain gel-forming agents such as sodium carboxymethylcellulose and gelatin, applied to a carrier
such as foam or film to form an absorbent, self-adhesive, waterproof wafer.
18. Inflammation phase
Necrotic tissue is a proinflammatory stimulus and a culture medium for
bacterial growth
Debridement is defined as the removal of necrotic tissue, exudate, bacteria,
and metabolic waste from a wound in order to improve or facilitate the
healing process
Mechanical, sharp/surgical, enzymatic, and autolytic are the common
methods of debridement
Autolytic debridement can be facilitated with appropriate dressings under moist
wound environment
23. Proliferative phase
Scaffolding for repair of the wound
Angiogenesis
Fibroplasia
Collagen, elastic fiber, extracellular matrix
The aim is the formation of granulation tissue
consists of a capillary bed; fibroblasts; macrophages; and a loose arrangement of
collagen, fibronectin, and hyaluronic acid
Appearance: pink, granular tissue, little or no slough, little exudate
26. Maturation phase
Cross linking of collagen>increase strength
Wound contraction
Reduce cellular activity and blood vessels
Paler and flatten scar
Skin function deficiency
Lotion
Sunscreen
Non-adherent pad
27.
28. Summary
Every wound is unique
Should be assessed and treated individually, principally correcting the underlying
causes and systematically ~ by Halim, Khoo & Saad, 2012
Accurate, ongoing assessment of the needs of the wound
No single product is suitable for all wounds or all stage of healing process
Adequate knowledge of the functions and performance of the dressing
Journal wound care Vol 15, Feb 2006. Jones AM, San Miguel L