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ABC of Wounds management
    Dr. Mahen Kothalawala MBBS, Dip in
           Micro, MD, MPH(NZ),
     Consultant Clinical Microbiologist
          Teaching Hospital Kandy
                 SriLanka
Management of Wounds

       Part one
Objective
• Types of wounds
• Mechanisms of wound Causation
• Wound healing –Phases
• Chronic Wounds
• Identification and classification of chronic
  wounds
• Description of chronic wounds for the purpose
  of documentation
Wounds



 Acute Wounds                Chronic Wounds

Cuts, Abrasions,
Lacerations                 Fail to pass
Contusions                  through normal
Punture                     healing process
Skin flaps and
Bites
Benbow ( 2005)              Any wound >
                            3/12
                            considered a
                            chronic wound
They passes
through the
normal healing
process readily
acute wounds
• heal very easily
• It passes phases of wound healing
  – Inflammatory phase
  – Collagen building phase
  – Remodelling Phase
Aim of management of acute wounds

• Healing without complications such as
  infection and disfiguring

• Wound care
  – Remove FB
  – Dry or wet to dry dressing to cover the wounds
  – Suturing if acute
  – Bites - Prophylaxis
Antibiotics in acute wounds
• Only indicated if contaminated or evidence of
  infection is demonstrated

• Evidence of infection (local)
  – Redness
  – Warmth
  – Swelling
  – Tenderness
  – Local Lymphadenopathy
Acute wounds with abscess formation
• If abscesses are large need to be drained
• Smaller once – can manage with antibiotics

• Betadine*, Hydrogen Peroxide*, Saline, Spirit
  can be used to cleanse the wound
• For chronic wounds * ********* may
  interfere with granulation and epethelilised
  tissues
Healing of acute wounds
• Wounds with minimal gaping – heals readily
  with scarring

• Wounds with gaping or skin loss – heals with
  Scar tissue formation and retraction
How do wounds heal
•   Haemostasis
•   Inflammation
•   Proliferation or Granulation
•   Remodelling or Maturation
Normal Healing Process…   11
Proliferative
                             Phase
                       Proliferation, Gra
                         nulation and
                          Contraction
                                            Remodelling
                                              Phase




Acute Wounds
               Haemostasis &
               Inflammatory
                    Phase




                                                   Healed Wound
Natural wound healing process
When Does a Wound Become
             Chronic?
• healthy individuals with no underlying factors
  an acute wound→ heal within three weeks
  remodelling → over the next year or so

• When wound does not follow the normal
  trajectory it may become stuck in one of the
  stages and the wound becomes chronic.
Chronic Wounds
• Working Definition – wound lasting >3 months
• Chronic wound – Fail to heal due to various
  local and systemic causes
  – Healing process arrests at different levels of
    healing
  – Wound may appear at different colours
Chronic wounds
The wound healing cascade impairs and arrests at
  different stages
Hemostasis                                CHRONIC WOUND

     Platelet Aggregation
                Neutrophil Immigration
                      Monocyte Immigration
                            Granulation
                                   Re-epithelialization
                                          Wound Closure
                                                     Scar Formation
                                                        Remodeling

  Minutes     Hours     Days     Weeks      Months        Years       Time
Chronic wounds
• Normal healing process impaired
  – Arrest at different levels –
  – Remains at same stage without progressing to
    wound healing


• Often an underlying cause remains and
  undetected
Local and systemic factors that impede
                 wound healing
•   Local factors                                 •   Systemic factors
                                                  •   Advancing age and general immobility **
•   Inadequate blood supply **
                                                  •   Obesity ***
•   Increased skin tension
                                                  •   Smoking
•   Poor surgical apposition
                                                  •   Malnutrition ***
•   Wound dehiscence
                                                  •   Deficiency of vitamins and trace elements ***

•   Poor venous drainage **                       •   Systemic malignancy and terminal illness Shock of any cause

•   Presence of foreign body and foreign body •       Chemotherapy and radiotherapy
    reactions
                                                  •   Immunosuppressant drugs, corticosteroids, anticoagulants
•   Continued presence of micro-organisms &
    Infection **                            •         Inherited neutrophil disorders, such as leucocyte adhesion
                                                      deficiency

•   Excess local mobility, such as over a joint                                                        18
                                                  •   Diabetes and CRF***
Characteristics of a chronic wound
• May appear different colours at any given
  time
Appearance of a chronic wound




                                20
Chronic Wounds Appearance




approach has been criticised for being too simplistic as wound healing is a continuum
and wounds often contain a mixture of tissue types.
Wound healing continuum




Wound Healing Continuum (Gray et al. 2005) have
been developed. This tool incorporates intermediate colour
combinations
between the four key colours
Management of wounds

       Part two
Objectives
• Identification of different types of wounds

• Characteristics of the wounds
Types of wounds
•   Necrotic Wounds
•   Sloughy Wound
•   Granulating Wounds
•   Epethililized Wounds
•   Mixed type
•   Infected wounds
Necrotic wounds
Necrotic tissue
• Necrotic tissue= Dead tissue = when it is dry
  and hard known as eschar
• It prevents wound healing – Removal is
  necessary – May lead to infection
• Once removed healing starts
• Removal needs to asses wound staging and it
  mask the true size of the wound
Necrotic wounds
• Fails to heal

• Masks the true size and staging

• Prevents antibiotics from reaching the site

• Provide foothold for microbes to grow and
  evade antibacterial or neutrophils – Bio film
Necrotic wound
• often appears black,
• may also appear brown or grey when
  hydrated.
• Necrotic → initially be soft,
• dead tissue → lose moisture and become
  dehydrated with the surface becoming hard
  and dry
Sloughy wounds
• Slough – yellowish/Yellow brown fibrous tissues which tightly
  adherent to the wound base (dead cells and wound debris)
• cannot be removed by washing
• slough is not necessarily indicative of clinical infection.
• Slough can be found as patches across the wound bed.
• Exposed tendons may mistaken for slough.


• Effect of slough in wound healing
   – Presence of slough delays wound healing
   – Predispose to infection –provide Foot hold to organisms to attach
   – Prevents antibiotics/Antimicrobial agents from reaching the site
Slough in wounds
• should be removed to enable healing to take
  place.
• referred to as ‘de-sloughing’.
Granulating Wounds
• Granulation tissue fills the wound as it is
  healing.
• The tops of the capillary loops make the
  wound appear red and granular.
• It is firm to the touch, painless and does not
  bleed easily.
Granulating Wounds
Unhealthy Granulating Tissues
• Bright red granulation tissue, which bleeds
  easily, may indicate infection (Bale and Jones
  1997).
Epethilialized wounds
• Epithelial tissue is formed in the final stages of
  healing.
• This tissue forms the new epidermis.
• Epithelial tissue is superficial pink/white tissue
  that migrates across the wound from the wound
  margin, hair follicles or sweat glands.
• It will cover the granulating tissue.
• In shallow wounds with a large surface area, islets
  of epithelialisation may be seen.
Epethililized wounds
Infected wounds
• Wound infection is the most troubling
  wound complication (Cutting 1998).
• Avoiding infection is vital in good wound
  management.
• Therefore it is good practice to recognise
  the contributing factors that precede a
  diagnosis of infection.
Wound Infection Continuum
• The Wound Infection Continuum (Gray et al.
  2005) recognises the various levels of bio-
  burden in the wound
  – Wound Contamination
  – Wound Colonization
  – Critical Colonization
  – Wound Infection
  – Spreading wound infection
  – Wound Sepsis
Wound                    1.Organims from sorrounding
 Contamination                    skin- Regional flora-
                             CONS, Deptheroids, Anerobes

                                   H
   Wound                           an
 Colonization                      d         3.Organisms from External
                                   hy   environment- HCW through direct or
                 Wound Surface     ge               indirectly –
                                   in   MRSA, Pseudomonas, Multiresistant
   Critical                        e               organisims etc
 Colonization
                                   Fecal and urinary management systems

    Wound                 2.Organisms from GIT and GUT
   Infection                  Gram Negatives such as
                       E.coli, Klebsiella, Enterobacter, Aner
                                         obes
Advance Wound
   Infection
Wound Infection
    • The presence of multiplying organisms within
      a wound that overwhelm the host immune
      response with associated clinical signs and
      symptoms. (Kingsley 2001)

Organism
Density
Factors which influence wound
                infection
• 1. The quantity of micro-organisms
• 2.quality –Virulence and antibiotic resistance
• 3. The patients resistance to the level of
  bacteria in the wound( immune response)

• Microbial bio-burden within wounds can
  range from
  contamination, colonisation, critical
  colonisation and infection.
Clinical Signs of wound infection
• Classical Signs
  1.   Increased pain
  2.   Copious amounts of exudate
  3.   Malodour
  4.   Cellulites
  5.   Pyrexia
  6.   Abscess Formation
Additional Signs
– Increase in size of wound
– Delayed wound healing
– General unwellness
– Dark discoloured granulation tissue
– Increased friability
– Pocketing at base of wound. (Cutting and Harding
  1994).
Investigations for wound infection
• When wounds are not healing in the expected
  way and display signs and symptoms of infection
  or for the presence of multi-resistant bacteria
  such as MRSA (Gilchrist 2001).

• Three types of Investigations
  – Deep tissue biopsy –During surgery(Bowler et al
    2001).
  – Wound Fluid Sampling
    Aspiration using aseptic technique from deep
  – Wound Swabs
Indications for wound swabs
• Wound swabs are generally preferred when
  – Wound fails to heal as anticipated
  – When evidence of infection present
  – Suspecting drug resistance
Management of wounds

       Part three
Objective
• Care of different types of Wounds
Care depends on
• Type of wound

• Amount and type of of Exudate

• Presence of critical colonization or evidence of
  infection
Care of necrotic wound
• Necrotic wound
• As areas of necrosis interfere with healing
  process, need to remove it through any of the
  following means
  – Mechanical Debridement –Wet to dry dressings
  – Autolytic Debridement- Occlusive dressing and wound
    exudate will debride by its enzymatic relations
  – Enzymatic Debridement –By sofetneing slough by
    using enzymes –Iruxol and Papaya
  – Bio logical Debridement –Maggots therapy
  – Surgical Debridement –Surgeons blades
Care of Exudative wound
•   Dry wound
•   Mildly exudative wound
•   Moderately exudative wound
•   High exudative wound
•   Care of periwound area
Care of Sloughy wound
• De-sloughing

• Prevention of slough formation

• Enhance granulation
Care of granulating wounds
• Care of granulation tissue – avoid dry or wet to dry
  dressings

• Prevent over granulation

• Prevent infection

• Exudate management and care of peri-wound area

• Skin grafting or skin substitutes
Care of Epethelialized wounds
• Same as in granulating wounds
Care of infected wounds
• Reduce bio burden –Cleansing, reduction of
  necrotic and sloughy tissue
• Local antiseptics – rotational
• Local antiseptics- cedoxomer
  iodine, crystalline silver, PHMB
• Exudate management
• Care of periwound area
Antibiotics
• For spreading infection and or evidence of
  systemic infection
• Take blood cultures
• Treated with Broad Spectrum antibiotics
  intravenously.
• Topical antimicrobials - used to reduce wound
  bio burden (EWMA 2006).
Antimicrobials
• Topical antiseptics/Antibacterials
• The range of topical antimicrobial agents currently used
  includes
      – chlorhexidine,
      – products containing iodine (cadexomer iodine and povidone
      – iodine) and
      – products containing silver (silver sulfadiazine and
        silverimpregnated
      – dressings) (EWMA 2006).
      – The antiseptic/antimicrobial polyhexamethylene biguanide (also
        known as polyhexanide or PHMB)

• .
Management of wounds

       Part four
Care Planning       .




    Overall strategy and scope of the
  treatment plan depends on patient’s
condition, prognosis, and reversibility of
               the wound.
Appropriate Goals
• Prevent complications or the deterioration of an
  existing wound
• Prevent additional skin breakdown and protection of
  the surrounding skin
• Minimize harmful effects of the wound on the
  patient’s overall condition
• Promote wound healing and achieve cure
• Prevention of wound from recurring and life style
  modification
Patient Cantered –                                    Holistic –Total care -Not only
dealing with person with a                              wound itself- need to address
      chronic wound                                     pts other needs, diseases, and
                                                        psychosocial wellbeing




                             Wound Care Plan
                                 (WCP)




                               Inter-diciplinary
                             Needs Participation of
                             multitude of disciplines
Basic elements in wound care plan
• Cleanse Debris from the Wound
• Possible Debridement
• Manage Exudate
• Promote Granulation and Epithelialization
  When Appropriate
• Possibly Treat Infections
• Minimize Discomfort
A. Cleanse Debris from the Wound
   Cleansing agents

   –   Flowing Water –Requesting pt to bath before dressing change
   –   Normal Saline***
   –   Commercial Cleansers
   –   Hydrogen Peroxide
   –   Povidone iodine
   –   Hypochlorite solution
   –   Sterile vinegar solution
   –   Mechanical Cleansers –Whirl pools
   –   Salt dips


   Aims
• Reduce bio burden
• Reduce dead and dying debris
• Clean the wound
2. Possible Debridement

•   Mechanical
•   Autolytic
•   Enzymatic
•   Biological
•   Surgical
C. Manage Exudates
• Identify the level of moisture
• Manage exudates by dressings
Nature of Exudate   Type of wound   Aim of exudate      Method /Agent
                                    management
No exudate          Dry             Keep the base       Hydrocoloid agent
                                    moist               Intrasite
                                                        Need occlusive and
                                                        non occlusive
                                                        dressing
Mild exudate        Moist           Keep the wound      Absorb moisture
                                    moist
Moderate            Wet             Keep the wound in   Absorb moisture
                                    moist state by      Form dressing
                                    reducing exudate
Heavy               Wet +++         Keep the wound      Absorb
                                    moist
D. Promote Granulation and
               Epithelialization

• Granulation enhancers

• Minimal Dressing changes to reduce
  disturbances to the granulation

• Avoid usage of substances which impede
  granulation tissues
E. Treat infections
• Systemic antibiotics

• Local Antiseptics to the wound

• Rotational antiseptics etc
F. Minimize discomfort
• Pain relief

• Psychological support

• Family education and create conducive
  environment

• Social support
WCP include
• Initial Assessment and Documentation
• Identifying the risk factors
• Optimize Local wound care
    – Selection of Dressing
• Systemic therapy and nutritional supplementation
    – Diabetes control
    – Antibiotics if indicated
•   Follow up and progress assessment periodically
•   Change the plan if not improving
•   Re-asses
•   Empower the pt and family members
WCP Step one
Assessment and documentation
Initial Assessment and documentation
Assessment and documentation
• It is ongoing process
• Initial assessment – at the time of first
  presentation
• At every dressing changes – need to asses and
  document the state of wound to monitor
  progress
WCP-Step two
•   General Assessment of pt characteristics
•   Ht, Weight, QI, BP, Skin color
•   Past medical history
•   Investigation done previously
•   Drug and allergic history
• Chronic Wound Care: 10
     Pearls for Success
Chronic Wound Care: 10 Pearls for
              Success!!
       Dr. Gary Sibbald, BSc, MD, MEd, FRCPC (Med), FRCPC (Derm), MACP, FAAD, MAPCA

1. For those with Diabetes for wound healing and further
   prevention:
   A - Check A1c - greater than 9% will affect wound healing.
      Recommended is less than 7%.
   B – Blood Pressure
   C - Cholesterol
   D - Diet
   E - Exercise
   F - Foot care - Check both feet at each appointment, shoes
      should be professionally fitted, consider chiropody.
   S- Smoking
• 2. For those with Venous Ulcer Disease -
  Compression bandaging is for treatment,
  stockings are for prevention.

  – (Exudate/creams will damage the integrity of the
    stockings).
  – COMPRESSION IS FOR LIFE! The right
    compression is the one the patient will wear
3. For those with any distal neuropathy - Shoes
  should be professionally fitted.
4. Smoking Cessation -IMPORTANT FOR ALL! -
  each cigarette decreases leg circulation for
  30% for an hour or increase sympathetic tone
  for 8 hours
5. If wounds not decreased by 30% in size by
  week 4, unlikely to heal by week 12. Consider
  biopsy or a comprehensive re-assessment
6.Query Infection? Culture using the Levine
  technique (Compress wound with normal saline
  for 10 minutes, press swab into a clean
  granulated area to express fluid and rotate 360
  degrees

7. Treat the cause! Consider all the possible
   contributors to non-healing:
   Drugs, Occult, Diabetes, Systemic Disease (e.g.
   diabetes anemia, vascular
   disease), smoking, non-adherence
• 9. Treat the wound!
  Debridement, Infection, Moisture
  Balance, and then Edge

• 10. Interdisciplinary collaboration -
  Physicians, Nursing, Chiropody, OT, PT, Dieticia
  n, and Caregivers.
Wound Care
• Complex
• Yet Acheivable
Case one -Documentation
Patients Name – RMW
67 yr
Diabetic pt
From Maharagama
A retired Clerk

Date of Clerking -21/5/2012
Wound –Medial side of the rt leg
Extending from Medial Maleolus
region
      Maximum Length – 13 cm
      Maximum Width -8 cm
      Maximum Depth 2mm
      Surface area - 39 cm2

Stage 11
Per-iwound Area –black Discoloration
+
      No undermining
      No tunnelling                    No evidence of Redness surrounding skin
Exudate – Mucoid Mild                  No regional Lymphadenopathy
No evidence of infection               Venous Insufficiency
Smell – Not offensive
Colour of the wound bed –Mixed         General – Mobile pt Afebrile
      Necrosis 5%
                                       Not anemic- 9.8g/dl
      Granulation 30%
      Slough 15%
      Epethelialized 5%
Step Two
• General 168cm
• 84kg
• 160/100 kg

• Past medical history – DM for 20 yrs on regular therapy
• Past history of similar illness

• Drugs- On tolbutamide
• HT- No drugs

• FBS- 130 mg/dl
Team
•   Surgeon
•   Wound Care Practioner
•   Nursing officer
•   Physician
•   Physio-therapist
•   Nutritionists
•   Attendant
Empower the patient and responsible
         family member
• Teach the correct way to dressing

• Irrigation

• Compression
100
      Progress Assessment (two weekly)
 80




 60




 40




 20




  0
        Week 1             Week 3               Week 5                    Week 7                Week 9


       Necrosis               Slough                     Granulation               Epethililization
-20
       Linear (Necrosis)      Linear (Slough)            Linear (Granulation)
Dressings

• Objectives

  – Type of Dressings
  – Selection of dressings
  – Dressing recommendation
Dressings
• When a wound is infected → expensive
  dressings useless
• Management of exudate, pain is very
  necessary.
• Additionally debridement of necrotic or
  sloughy tissue can alter the wound
  environment significantly and help to reduce
  the overall bioburden and reduce odour
  (EWMA 2006).
Dressing Selection
• Primary Dressing – A dressing that touches the
  wound
• Secondary Dressing – Keeps the primary
  dressing in site – Fasten it to the wound
• Some dressings function as primary dressings
  only
• Some could function as primary and
  secondary dressings as well - adhesive
Dressing Selection
• Depend on
  – Type of wound
  – Patient preference/Dr preference
  – Stage of healing of the wound
     • Proliferation or Granulation phases
     • Remodelling or Maturation phases
     • Presence or absence of Infection or Colonization –Bio
       film
Dressing Selection
• Depending on wound healing passes through its
  different stages different types of dressings may
  be required
• Normally moist environment will enhance wound
  healing
• Exudate provide moist healing
• Too much of exudate,
  – interfere with wound healing-leads to autolysis by the
    action of enzymes in the exudate
  – Inhibits-granulation and epethilization
Ideal wound dressing for moist wound
       healing need to ensure....
• Wound remain moist– not macerated
• Wound need to remain free from active infection
• Free from toxic materials of the dressing
            Papaya and Komarika
• To maintain the wound at optimum temperature
  for healing
• Undisturbed by the frequent need for dressing
  changes
• Maintain optimum PH conducive to wound
  healing
Advanced wound dressing
• Are designed to control the environment around
  wound -↑ healing
• Mainatainance of moisture balance
   – Some donate fluid to keep wound moist (ex
     Hydrogels)- used for dry wounds
   – Some maintain moisture or retain moisture without
     donating or loosing (Hydro colloids)
   – Some designed to absorb excessive moisture (Alginate
     and foams)
• Fight Infection/Critical Colanization/
   – Silver impregnated dressings
   – Iodine containing dressings/powder/cream etc
Practice which need be discouraged
• Irritant solutions
• Irritant cleansers
• Frequent de-sloughing or using de-sloghing
  agent
Desloughing
• Hydrogels, hydrocolloids and medical grade
  honey can be used to autolytic debridement
  for difficult to heal ulcers

• Sterile larvae- can be used to bio surgical
  debridement
Dressings
• Two types

• Inactive Dressings
• Active dressings
Inactive dressings
• Dry dressings
• wet to dry dressings
• Polyurethane film dressing –Breathable and
  non breathable film dressings
• Vasline tules
• Antibiotic impregnated tules



                                               103
Dry dressing and wet to dry dressing
• Gauze dressing
• Can be medicated or non medicated
• Good for acute wounds
Dry dressings……




1. Tend to absorb wound moisture
2. Tightly Adherent to granulation Tissue –
   will break upon removal

                                              105
Vaseline Gauze
                 PU Film Dressings

                                     106
Film dressings and tules
• Not shown to be better than dry dressings

• Only advantage – no breaking of granulation
  tissues
Active dressings
• Plays a role in wound healing
  – Provide a covering,
  – enhance granulation tissue formation,
  – Reduce slough formation
  – Inhibits bacteria
  – Keep wound moist
  – Some provide growth factors



                                            108
Examples
•   Hydrogels –fibre and Foams
•   Hydrocellular dressings
•   Foams
•   Alginates
•   Crystaline Silver and Slow Iodine releasing
    materials



                                                  109
Hydrogel
• Cross linked gel dressing
  – Flexigel
  – Intrasite


• Keep the wound moist
• Suitable to mildly exudating wounds and to
  dry and necrotic wounds


                                               110
Foam dressing
• Suitable for mild to moderate exudating
  wounds
• Adsorbs exudate rapidly and enhance
  thickness




                                            111
Forms
• Used for cavities and fill the dead space
  (cavitating lesions)
• Promote healing from the edge




                                              112
Alginate Dressing




Adsorbs excessive moisture
                             113
• Summary
A to z of wound care

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A to z of wound care

  • 1. ABC of Wounds management Dr. Mahen Kothalawala MBBS, Dip in Micro, MD, MPH(NZ), Consultant Clinical Microbiologist Teaching Hospital Kandy SriLanka
  • 3. Objective • Types of wounds • Mechanisms of wound Causation • Wound healing –Phases • Chronic Wounds • Identification and classification of chronic wounds • Description of chronic wounds for the purpose of documentation
  • 4. Wounds Acute Wounds Chronic Wounds Cuts, Abrasions, Lacerations Fail to pass Contusions through normal Punture healing process Skin flaps and Bites Benbow ( 2005) Any wound > 3/12 considered a chronic wound They passes through the normal healing process readily
  • 5. acute wounds • heal very easily • It passes phases of wound healing – Inflammatory phase – Collagen building phase – Remodelling Phase
  • 6. Aim of management of acute wounds • Healing without complications such as infection and disfiguring • Wound care – Remove FB – Dry or wet to dry dressing to cover the wounds – Suturing if acute – Bites - Prophylaxis
  • 7. Antibiotics in acute wounds • Only indicated if contaminated or evidence of infection is demonstrated • Evidence of infection (local) – Redness – Warmth – Swelling – Tenderness – Local Lymphadenopathy
  • 8. Acute wounds with abscess formation • If abscesses are large need to be drained • Smaller once – can manage with antibiotics • Betadine*, Hydrogen Peroxide*, Saline, Spirit can be used to cleanse the wound • For chronic wounds * ********* may interfere with granulation and epethelilised tissues
  • 9. Healing of acute wounds • Wounds with minimal gaping – heals readily with scarring • Wounds with gaping or skin loss – heals with Scar tissue formation and retraction
  • 10. How do wounds heal • Haemostasis • Inflammation • Proliferation or Granulation • Remodelling or Maturation
  • 12. Proliferative Phase Proliferation, Gra nulation and Contraction Remodelling Phase Acute Wounds Haemostasis & Inflammatory Phase Healed Wound
  • 14. When Does a Wound Become Chronic? • healthy individuals with no underlying factors an acute wound→ heal within three weeks remodelling → over the next year or so • When wound does not follow the normal trajectory it may become stuck in one of the stages and the wound becomes chronic.
  • 15. Chronic Wounds • Working Definition – wound lasting >3 months • Chronic wound – Fail to heal due to various local and systemic causes – Healing process arrests at different levels of healing – Wound may appear at different colours
  • 16. Chronic wounds The wound healing cascade impairs and arrests at different stages Hemostasis CHRONIC WOUND Platelet Aggregation Neutrophil Immigration Monocyte Immigration Granulation Re-epithelialization Wound Closure Scar Formation Remodeling Minutes Hours Days Weeks Months Years Time
  • 17. Chronic wounds • Normal healing process impaired – Arrest at different levels – – Remains at same stage without progressing to wound healing • Often an underlying cause remains and undetected
  • 18. Local and systemic factors that impede wound healing • Local factors • Systemic factors • Advancing age and general immobility ** • Inadequate blood supply ** • Obesity *** • Increased skin tension • Smoking • Poor surgical apposition • Malnutrition *** • Wound dehiscence • Deficiency of vitamins and trace elements *** • Poor venous drainage ** • Systemic malignancy and terminal illness Shock of any cause • Presence of foreign body and foreign body • Chemotherapy and radiotherapy reactions • Immunosuppressant drugs, corticosteroids, anticoagulants • Continued presence of micro-organisms & Infection ** • Inherited neutrophil disorders, such as leucocyte adhesion deficiency • Excess local mobility, such as over a joint 18 • Diabetes and CRF***
  • 19. Characteristics of a chronic wound • May appear different colours at any given time
  • 20. Appearance of a chronic wound 20
  • 21. Chronic Wounds Appearance approach has been criticised for being too simplistic as wound healing is a continuum and wounds often contain a mixture of tissue types.
  • 22. Wound healing continuum Wound Healing Continuum (Gray et al. 2005) have been developed. This tool incorporates intermediate colour combinations between the four key colours
  • 23.
  • 24.
  • 25.
  • 26.
  • 28. Objectives • Identification of different types of wounds • Characteristics of the wounds
  • 29. Types of wounds • Necrotic Wounds • Sloughy Wound • Granulating Wounds • Epethililized Wounds • Mixed type • Infected wounds
  • 31. Necrotic tissue • Necrotic tissue= Dead tissue = when it is dry and hard known as eschar • It prevents wound healing – Removal is necessary – May lead to infection • Once removed healing starts • Removal needs to asses wound staging and it mask the true size of the wound
  • 32. Necrotic wounds • Fails to heal • Masks the true size and staging • Prevents antibiotics from reaching the site • Provide foothold for microbes to grow and evade antibacterial or neutrophils – Bio film
  • 33. Necrotic wound • often appears black, • may also appear brown or grey when hydrated. • Necrotic → initially be soft, • dead tissue → lose moisture and become dehydrated with the surface becoming hard and dry
  • 34. Sloughy wounds • Slough – yellowish/Yellow brown fibrous tissues which tightly adherent to the wound base (dead cells and wound debris) • cannot be removed by washing • slough is not necessarily indicative of clinical infection. • Slough can be found as patches across the wound bed. • Exposed tendons may mistaken for slough. • Effect of slough in wound healing – Presence of slough delays wound healing – Predispose to infection –provide Foot hold to organisms to attach – Prevents antibiotics/Antimicrobial agents from reaching the site
  • 35.
  • 36. Slough in wounds • should be removed to enable healing to take place. • referred to as ‘de-sloughing’.
  • 37. Granulating Wounds • Granulation tissue fills the wound as it is healing. • The tops of the capillary loops make the wound appear red and granular. • It is firm to the touch, painless and does not bleed easily.
  • 39. Unhealthy Granulating Tissues • Bright red granulation tissue, which bleeds easily, may indicate infection (Bale and Jones 1997).
  • 40. Epethilialized wounds • Epithelial tissue is formed in the final stages of healing. • This tissue forms the new epidermis. • Epithelial tissue is superficial pink/white tissue that migrates across the wound from the wound margin, hair follicles or sweat glands. • It will cover the granulating tissue. • In shallow wounds with a large surface area, islets of epithelialisation may be seen.
  • 42. Infected wounds • Wound infection is the most troubling wound complication (Cutting 1998). • Avoiding infection is vital in good wound management. • Therefore it is good practice to recognise the contributing factors that precede a diagnosis of infection.
  • 43. Wound Infection Continuum • The Wound Infection Continuum (Gray et al. 2005) recognises the various levels of bio- burden in the wound – Wound Contamination – Wound Colonization – Critical Colonization – Wound Infection – Spreading wound infection – Wound Sepsis
  • 44. Wound 1.Organims from sorrounding Contamination skin- Regional flora- CONS, Deptheroids, Anerobes H Wound an Colonization d 3.Organisms from External hy environment- HCW through direct or Wound Surface ge indirectly – in MRSA, Pseudomonas, Multiresistant Critical e organisims etc Colonization Fecal and urinary management systems Wound 2.Organisms from GIT and GUT Infection Gram Negatives such as E.coli, Klebsiella, Enterobacter, Aner obes Advance Wound Infection
  • 45. Wound Infection • The presence of multiplying organisms within a wound that overwhelm the host immune response with associated clinical signs and symptoms. (Kingsley 2001) Organism Density
  • 46. Factors which influence wound infection • 1. The quantity of micro-organisms • 2.quality –Virulence and antibiotic resistance • 3. The patients resistance to the level of bacteria in the wound( immune response) • Microbial bio-burden within wounds can range from contamination, colonisation, critical colonisation and infection.
  • 47. Clinical Signs of wound infection • Classical Signs 1. Increased pain 2. Copious amounts of exudate 3. Malodour 4. Cellulites 5. Pyrexia 6. Abscess Formation
  • 48. Additional Signs – Increase in size of wound – Delayed wound healing – General unwellness – Dark discoloured granulation tissue – Increased friability – Pocketing at base of wound. (Cutting and Harding 1994).
  • 49. Investigations for wound infection • When wounds are not healing in the expected way and display signs and symptoms of infection or for the presence of multi-resistant bacteria such as MRSA (Gilchrist 2001). • Three types of Investigations – Deep tissue biopsy –During surgery(Bowler et al 2001). – Wound Fluid Sampling Aspiration using aseptic technique from deep – Wound Swabs
  • 50. Indications for wound swabs • Wound swabs are generally preferred when – Wound fails to heal as anticipated – When evidence of infection present – Suspecting drug resistance
  • 51. Management of wounds Part three
  • 52. Objective • Care of different types of Wounds
  • 53. Care depends on • Type of wound • Amount and type of of Exudate • Presence of critical colonization or evidence of infection
  • 54. Care of necrotic wound • Necrotic wound • As areas of necrosis interfere with healing process, need to remove it through any of the following means – Mechanical Debridement –Wet to dry dressings – Autolytic Debridement- Occlusive dressing and wound exudate will debride by its enzymatic relations – Enzymatic Debridement –By sofetneing slough by using enzymes –Iruxol and Papaya – Bio logical Debridement –Maggots therapy – Surgical Debridement –Surgeons blades
  • 55. Care of Exudative wound • Dry wound • Mildly exudative wound • Moderately exudative wound • High exudative wound • Care of periwound area
  • 56. Care of Sloughy wound • De-sloughing • Prevention of slough formation • Enhance granulation
  • 57. Care of granulating wounds • Care of granulation tissue – avoid dry or wet to dry dressings • Prevent over granulation • Prevent infection • Exudate management and care of peri-wound area • Skin grafting or skin substitutes
  • 58. Care of Epethelialized wounds • Same as in granulating wounds
  • 59. Care of infected wounds • Reduce bio burden –Cleansing, reduction of necrotic and sloughy tissue • Local antiseptics – rotational • Local antiseptics- cedoxomer iodine, crystalline silver, PHMB • Exudate management • Care of periwound area
  • 60. Antibiotics • For spreading infection and or evidence of systemic infection • Take blood cultures • Treated with Broad Spectrum antibiotics intravenously. • Topical antimicrobials - used to reduce wound bio burden (EWMA 2006).
  • 61. Antimicrobials • Topical antiseptics/Antibacterials • The range of topical antimicrobial agents currently used includes – chlorhexidine, – products containing iodine (cadexomer iodine and povidone – iodine) and – products containing silver (silver sulfadiazine and silverimpregnated – dressings) (EWMA 2006). – The antiseptic/antimicrobial polyhexamethylene biguanide (also known as polyhexanide or PHMB) • .
  • 62. Management of wounds Part four
  • 63. Care Planning . Overall strategy and scope of the treatment plan depends on patient’s condition, prognosis, and reversibility of the wound.
  • 64. Appropriate Goals • Prevent complications or the deterioration of an existing wound • Prevent additional skin breakdown and protection of the surrounding skin • Minimize harmful effects of the wound on the patient’s overall condition • Promote wound healing and achieve cure • Prevention of wound from recurring and life style modification
  • 65. Patient Cantered – Holistic –Total care -Not only dealing with person with a wound itself- need to address chronic wound pts other needs, diseases, and psychosocial wellbeing Wound Care Plan (WCP) Inter-diciplinary Needs Participation of multitude of disciplines
  • 66. Basic elements in wound care plan • Cleanse Debris from the Wound • Possible Debridement • Manage Exudate • Promote Granulation and Epithelialization When Appropriate • Possibly Treat Infections • Minimize Discomfort
  • 67. A. Cleanse Debris from the Wound Cleansing agents – Flowing Water –Requesting pt to bath before dressing change – Normal Saline*** – Commercial Cleansers – Hydrogen Peroxide – Povidone iodine – Hypochlorite solution – Sterile vinegar solution – Mechanical Cleansers –Whirl pools – Salt dips Aims • Reduce bio burden • Reduce dead and dying debris • Clean the wound
  • 68. 2. Possible Debridement • Mechanical • Autolytic • Enzymatic • Biological • Surgical
  • 69. C. Manage Exudates • Identify the level of moisture • Manage exudates by dressings Nature of Exudate Type of wound Aim of exudate Method /Agent management No exudate Dry Keep the base Hydrocoloid agent moist Intrasite Need occlusive and non occlusive dressing Mild exudate Moist Keep the wound Absorb moisture moist Moderate Wet Keep the wound in Absorb moisture moist state by Form dressing reducing exudate Heavy Wet +++ Keep the wound Absorb moist
  • 70. D. Promote Granulation and Epithelialization • Granulation enhancers • Minimal Dressing changes to reduce disturbances to the granulation • Avoid usage of substances which impede granulation tissues
  • 71. E. Treat infections • Systemic antibiotics • Local Antiseptics to the wound • Rotational antiseptics etc
  • 72. F. Minimize discomfort • Pain relief • Psychological support • Family education and create conducive environment • Social support
  • 73. WCP include • Initial Assessment and Documentation • Identifying the risk factors • Optimize Local wound care – Selection of Dressing • Systemic therapy and nutritional supplementation – Diabetes control – Antibiotics if indicated • Follow up and progress assessment periodically • Change the plan if not improving • Re-asses • Empower the pt and family members
  • 74. WCP Step one Assessment and documentation
  • 75. Initial Assessment and documentation
  • 76.
  • 77. Assessment and documentation • It is ongoing process • Initial assessment – at the time of first presentation • At every dressing changes – need to asses and document the state of wound to monitor progress
  • 78.
  • 79. WCP-Step two • General Assessment of pt characteristics • Ht, Weight, QI, BP, Skin color • Past medical history • Investigation done previously • Drug and allergic history
  • 80. • Chronic Wound Care: 10 Pearls for Success
  • 81. Chronic Wound Care: 10 Pearls for Success!! Dr. Gary Sibbald, BSc, MD, MEd, FRCPC (Med), FRCPC (Derm), MACP, FAAD, MAPCA 1. For those with Diabetes for wound healing and further prevention: A - Check A1c - greater than 9% will affect wound healing. Recommended is less than 7%. B – Blood Pressure C - Cholesterol D - Diet E - Exercise F - Foot care - Check both feet at each appointment, shoes should be professionally fitted, consider chiropody. S- Smoking
  • 82. • 2. For those with Venous Ulcer Disease - Compression bandaging is for treatment, stockings are for prevention. – (Exudate/creams will damage the integrity of the stockings). – COMPRESSION IS FOR LIFE! The right compression is the one the patient will wear
  • 83. 3. For those with any distal neuropathy - Shoes should be professionally fitted. 4. Smoking Cessation -IMPORTANT FOR ALL! - each cigarette decreases leg circulation for 30% for an hour or increase sympathetic tone for 8 hours 5. If wounds not decreased by 30% in size by week 4, unlikely to heal by week 12. Consider biopsy or a comprehensive re-assessment
  • 84. 6.Query Infection? Culture using the Levine technique (Compress wound with normal saline for 10 minutes, press swab into a clean granulated area to express fluid and rotate 360 degrees 7. Treat the cause! Consider all the possible contributors to non-healing: Drugs, Occult, Diabetes, Systemic Disease (e.g. diabetes anemia, vascular disease), smoking, non-adherence
  • 85. • 9. Treat the wound! Debridement, Infection, Moisture Balance, and then Edge • 10. Interdisciplinary collaboration - Physicians, Nursing, Chiropody, OT, PT, Dieticia n, and Caregivers.
  • 86. Wound Care • Complex • Yet Acheivable
  • 88. Patients Name – RMW 67 yr Diabetic pt From Maharagama A retired Clerk Date of Clerking -21/5/2012 Wound –Medial side of the rt leg Extending from Medial Maleolus region Maximum Length – 13 cm Maximum Width -8 cm Maximum Depth 2mm Surface area - 39 cm2 Stage 11 Per-iwound Area –black Discoloration + No undermining No tunnelling No evidence of Redness surrounding skin Exudate – Mucoid Mild No regional Lymphadenopathy No evidence of infection Venous Insufficiency Smell – Not offensive Colour of the wound bed –Mixed General – Mobile pt Afebrile Necrosis 5% Not anemic- 9.8g/dl Granulation 30% Slough 15% Epethelialized 5%
  • 89. Step Two • General 168cm • 84kg • 160/100 kg • Past medical history – DM for 20 yrs on regular therapy • Past history of similar illness • Drugs- On tolbutamide • HT- No drugs • FBS- 130 mg/dl
  • 90. Team • Surgeon • Wound Care Practioner • Nursing officer • Physician • Physio-therapist • Nutritionists • Attendant
  • 91. Empower the patient and responsible family member • Teach the correct way to dressing • Irrigation • Compression
  • 92. 100 Progress Assessment (two weekly) 80 60 40 20 0 Week 1 Week 3 Week 5 Week 7 Week 9 Necrosis Slough Granulation Epethililization -20 Linear (Necrosis) Linear (Slough) Linear (Granulation)
  • 93. Dressings • Objectives – Type of Dressings – Selection of dressings – Dressing recommendation
  • 94. Dressings • When a wound is infected → expensive dressings useless • Management of exudate, pain is very necessary. • Additionally debridement of necrotic or sloughy tissue can alter the wound environment significantly and help to reduce the overall bioburden and reduce odour (EWMA 2006).
  • 95. Dressing Selection • Primary Dressing – A dressing that touches the wound • Secondary Dressing – Keeps the primary dressing in site – Fasten it to the wound • Some dressings function as primary dressings only • Some could function as primary and secondary dressings as well - adhesive
  • 96. Dressing Selection • Depend on – Type of wound – Patient preference/Dr preference – Stage of healing of the wound • Proliferation or Granulation phases • Remodelling or Maturation phases • Presence or absence of Infection or Colonization –Bio film
  • 97. Dressing Selection • Depending on wound healing passes through its different stages different types of dressings may be required • Normally moist environment will enhance wound healing • Exudate provide moist healing • Too much of exudate, – interfere with wound healing-leads to autolysis by the action of enzymes in the exudate – Inhibits-granulation and epethilization
  • 98. Ideal wound dressing for moist wound healing need to ensure.... • Wound remain moist– not macerated • Wound need to remain free from active infection • Free from toxic materials of the dressing Papaya and Komarika • To maintain the wound at optimum temperature for healing • Undisturbed by the frequent need for dressing changes • Maintain optimum PH conducive to wound healing
  • 99. Advanced wound dressing • Are designed to control the environment around wound -↑ healing • Mainatainance of moisture balance – Some donate fluid to keep wound moist (ex Hydrogels)- used for dry wounds – Some maintain moisture or retain moisture without donating or loosing (Hydro colloids) – Some designed to absorb excessive moisture (Alginate and foams) • Fight Infection/Critical Colanization/ – Silver impregnated dressings – Iodine containing dressings/powder/cream etc
  • 100. Practice which need be discouraged • Irritant solutions • Irritant cleansers • Frequent de-sloughing or using de-sloghing agent
  • 101. Desloughing • Hydrogels, hydrocolloids and medical grade honey can be used to autolytic debridement for difficult to heal ulcers • Sterile larvae- can be used to bio surgical debridement
  • 102. Dressings • Two types • Inactive Dressings • Active dressings
  • 103. Inactive dressings • Dry dressings • wet to dry dressings • Polyurethane film dressing –Breathable and non breathable film dressings • Vasline tules • Antibiotic impregnated tules 103
  • 104. Dry dressing and wet to dry dressing • Gauze dressing • Can be medicated or non medicated • Good for acute wounds
  • 105. Dry dressings…… 1. Tend to absorb wound moisture 2. Tightly Adherent to granulation Tissue – will break upon removal 105
  • 106. Vaseline Gauze PU Film Dressings 106
  • 107. Film dressings and tules • Not shown to be better than dry dressings • Only advantage – no breaking of granulation tissues
  • 108. Active dressings • Plays a role in wound healing – Provide a covering, – enhance granulation tissue formation, – Reduce slough formation – Inhibits bacteria – Keep wound moist – Some provide growth factors 108
  • 109. Examples • Hydrogels –fibre and Foams • Hydrocellular dressings • Foams • Alginates • Crystaline Silver and Slow Iodine releasing materials 109
  • 110. Hydrogel • Cross linked gel dressing – Flexigel – Intrasite • Keep the wound moist • Suitable to mildly exudating wounds and to dry and necrotic wounds 110
  • 111. Foam dressing • Suitable for mild to moderate exudating wounds • Adsorbs exudate rapidly and enhance thickness 111
  • 112. Forms • Used for cavities and fill the dead space (cavitating lesions) • Promote healing from the edge 112