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Wound Management
Wound Management.
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The Goals• Create optimal conditions for the
patient to heal themselves.• Preserve function.• Minimize complications.• Improve the chances of a
cosmetically pleasing result
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What is a Wound? Any break in the continuity of body
tissue
Examples: grazes, burns, surgical incisions,
stabs, leg ulcers, decubitus ulcers ( pressure sores)
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Wound Examination• Adequate setting.• Hemostasis.• Neurovascular exam• Foreign body• Radiography
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Wound preparation
Anesthesia : • Local anesthetic injections
• Topical anesthetics
• Regional anesthetics
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Stages of Wound Healing
• Stage 1 - traumatic inflammation ( 0-3 days)- redness, heat, swelling
• Stage 2 -destructive phase ( 2-5 days)- polymorphs and macrophages clear the wound of debris and stimulate new growth
• Stage 3- the proliferative phase( 3-24 days increased collagen formation
• Stage 4- maturation phase ( 24 days-1 year) scar tissue decreases granulating tissue gets stronger and changes from reddish to pale
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.• Wound healing is complex and affected by intrinsic
(patient related) and extrinsic (wound related) factors and this affects the choice of treatment
• Holistic assessment - treat the whole person (e.g. full medical history, factors which may delay healing such as immobility, poor nutrition, obesity, personal circumstances)
• Signs of clinical infection
• tetanus immunization
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Sterile Technique
• Ruthman et al : closure of lacerations without caps and masks did not lead to an increased incidence of wound infection.
• Worral and later Perelman: sterile versus nonsterile gloves found no difference in wound infection rates.
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Cleansing wounds: an area where ritualistic practice
predominates
Key questions:1. Does the wound really need
cleaning?2. What is the safest method that
causes no ill effects and maintains the wound temperature?
3. What is acceptable to the patient?Wounds that are clean and healthy do not require cleaning and should be left alone
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Sterile Technique
• Non-sterile gloves, which provide “universal precaution “ is appropriate.
• Latex gloves should also be avoided
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Irrigation Fluid • Sterile saline
solution • Povidone-Iodine
Solution (Betadine®) 10%
- tissue toxic -did not reduce
infection incidence.• Diluted betadine :
use indeterminate.
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Irrigation Fluid• Tap water : low cast, available.
• Sandy : Medline 1966-10/03, 397 papers found
• Cochrane review database : although evidence is limited, there is no
difference in wound infection rates with the use of tap water as an irrigation fluid.
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NHS• Wound care is a high cost area for patients
and NHS in terms of prescribing costs, patient Quality indicators and NHS workforce time
• Value for money for the NHS is an important factor when choosing treatments.
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Wound Closure• Primary closure
– Suture, staple, adhesive, or tape– Performed on recently sustained
lacerations: <12 hours generally and <24 hours on face
• Secondary closure– Secondary intent– Allowed to granulate
• Tertiary closure– Delayed primary (observed for 4-5 days)
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Closure Methods
Sutures • The standard for wound closure
• Percutaneous sutures are used for low- to medium-tension wounds
• absorbable suture material for dermal stitches • interrupted versus other types of sutures has
no effect on infection rate
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Suture Material• Absorbable
– Chromic gut– Vicryl
• Non-Absorbable– Silk– Prolene
• Monofilament vs. braided
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Glue• Faster repair time • Less painful• Eliminate the risk for needle sticks • Antibacterial effect• Does not require removal of sutures
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Glue :Octyl cyanoacrylate • FDA approval in
1998 =Dermabond®
• 50% of the strength of 5-0 suture material.
• Cochrane review : comparable cosmetic outcomes compared to standard suturing
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Glue me• Short (< 6-8 cm)• Low tension (< 0.5 cm
gap)• Clean edged• Straight to curvilinear
wounds that do not cross joints or creases
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Don’t glue me• stellate lacerations • Bites, punctures or crush
wounds • Contaminated wounds • Mucosal surfaces • Axillae and perineum
(high-moisture areas) • Hands, feet and joints
(unless kept dry and immobilized)
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staples• Fast ,low wound reactivity and infection rate.• Less expensive.
• Less needle sticks risk.
• No cosmetic difference.
• Scalp, trunk, and extremity.
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Surgical Tapes Steri-Strips
• least reactive of all closure techniques
• lowest tensile strength
• May require tincture of benzoin
• Avoid in hairy and wet area.
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Delayed Primary Closure (DPC) • much underused method of wound care .
• reduced the infection rate by 50% in 104 extremity wounds
• recommended technique for contaminated wounds that present to the ED
• Technique : clean and debride then separate
wound edges with gauze, and apply bulky dressing.
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Secondary Intention • allowing a wound to heal without formal
closure .
• Simple but more wound scaring.
• Quinn et al in 2002 : conservative management resulted in no cosmetic or functional difference compared to primary closure in selected hand lacerations.
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MOIST WOUNDS• If its wet……..DRY it!• If its dry………MOISTEN it!• If its irritated…SOOTHE it!• If its chronic…IRRITATE it!• If its palliative..COMFORT it!
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Tetanus Prophylaxis
Recommendations IMMUNISATION
STATUS
CLEAN WOUND TETANUS-PRONE WOUND
Vaccine VaccineHuman Tetanus Immunoglobulin
Fully immunised, i.e. has received a total of 5 doses of vaccine at
appropriate intervals
None required None required Only if high risk
Primary immunisation complete, boosters
incomplete but up to date
None required (unless next dose due soon and convenient to give now)
None required (unless next dose due soon and convenient to give now)
Only if high risk
Primary immunisation incomplete or boosters
not up to date
A reinforcing dose of vaccine and further
doses as required to complete the
recommended schedule (to ensure future
immunity)
A reinforcing dose of vaccine and further
doses as required to complete the
recommended schedule (to ensure future
immunity)
Yes: one dose of human tetanus immunoglobulin
in a different site
Not immunised or immunisation status not
known or uncertain
An immediate dose of vaccine followed, if
records confirm the need, by completion of a full 5-
dose course to ensure future immunity
An immediate dose of vaccine followed, if
records confirm the need, by completion of a full 5-
dose course to ensure future immunity
Yes: one dose of human tetanus immunoglobulin
in a different site
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Antibiotic Use • prophylaxis studies : no benefits.• Indications For Prophylactic Antibiotics: Presence of prosthetic device(s) Class III Patients in need of endocarditis prophylaxis Class III Open joint or fractures associated with wound Class I Human, dog, and cat bites Class II Intraoral lacerations Class II Immunocompromised patients Class III Heavily contaminated wounds (eg, feces, etc) Class III
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Wound Preparation – Antibiotics
• Dog & cat bites– Cover pasteurella– Augmentin
• Human bites– Cover eikenella– Augmentin
• Puncture wounds– Cover pseudomonas– Cipro
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Wound Preparation – Antibiotics
• Infections occur in ~3-5% of traumatic wounds seen in the ED
• Factors that increase risk– Heavily contaminated wound, especially
with soil– Immunocompromised patients– Diabetics – Human bites > animal bites
• Most important prevention adequate irrigation & debridement
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The future • Growth factors :epidermal growth factor (EGF),
fibroblast growth factor (FGF), insulin-like growth factor (IGF), keratinocyte growth factor (KGF), and platelet-derived growth factor (PDGF).
• PDGF gel has been shown to speed healing of
wounds • chambers filled with antibiotics and growth
factors .