Burn Education Day - NSW Agency for Clinical Innovation...Zone of Coagulation ©EMSB Jackson’s...
Transcript of Burn Education Day - NSW Agency for Clinical Innovation...Zone of Coagulation ©EMSB Jackson’s...
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Burn Education DayACI Statewide Burn Injury Service
http://www.aci.health.nsw.gov.au/networks/burn-injury
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‘We would like to acknowledge the traditional owners’ of the lands and pay our respects to elders both past and present, and all Aboriginal people’s from whatever Aboriginal nation you may come from’
Acknowledgement
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The information in these lectures has been obtained from the Emergency Management of Severe Burns(EMSB) course manual 18th ed. published by the Australian and New Zealand Burn Association(ANZBA) 2018, and NSW Specialist Burn Clinicians.
Content Acknowledgement
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• To initiate appropriate early care of a burnt patient.• To know when & how to transfer a burnt patient.• To understand the principles of physical &
emotional rehabilitation of a burnt patient.
Aims of Education Day
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Epidemiology
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• 1% Australia and New Zealand per year
• 286,000 people per year
• 50% Restriction Daily Living Activities
• 10% Hospital
• 10% Severe Burns
Burns Incidence
©EMSB
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• Severe burn care is expensive• $700k for a 70% TBSA burn
• Rehabilitation
• Time off work
• Loss of earning power
• Loss of life style
Burns – The Cost
©EMSB
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Photo courtesy of RNSH
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Adult Burns
©EMSB
ANZBA Statistics
Flame 44 % Scald 28 % Contact 13 % Chemical 5 % Friction 5 % Electrical 2 % Other 3 %
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ANZBA Statistics
• Home 56 %• Work 17 %• Roadway 11 %• Outdoors 11 %• Institutions 3 %• Other 2 %
Places of Burn - Adults
©EMSB
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11©EMSB
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ANZBA Statistics
• Scald 55 %• Contact 21 %• Flame 13 %• Friction 8%• Electrical 1 %• Chemical 1 %• Other 1 %
Children’s Burns
©EMSB
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ANZBA Statistics
• Home 82 %• Outdoors 12 %• Roadway 3 %• Work 1 %• Institutions/School 1 %• Other 1 %
Place of Burns - Children
©EMSB
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Where does it happen?
82% House/Home
Mainly kitchen and bathroom
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Response to Burn
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Structure of Skin
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• Temperature regulation• Sensory interface• Immune response/protection from bacterial
invasion• Control of fluid loss• Metabolic function• Psycho-social function
Functions of the Skin
©EMSB
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Jackson’s Burn Wound Model
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Zone of Coagulation
©EMSB
Jackson’s Burn Wound Model
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Zone of StasisZone of Coagulation
©EMSB
Jackson’s Burn Wound Model
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Jackson’s Burn Wound Model
Zone of Hyperaemia
Zone of StasisZone of Coagulation
©EMSB
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Severity of Burn
Depth = time & temperature
Severity of local injury determined by depth
However, depth is not the most important predictor of severity
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Systemic injury
For all burns, tissue damage initiates an inflammatory response
Cytokine release, pathological cascade
If large enough causes a systemic inflammatory response
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• Proportional to area burnt• Clinically significant >20% TBSA adult/• Affects all major organ systems: Heart and blood vessels Lungs (Pulmonary oedema and ARDS) Gut (Paralytic ileus /bacterial translocation) Immune system Neuro-humeral regulation Kidney (Oliguria and renal failure) Bone mineralisation & growth
Body Response to Burn Injury
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Abnormal Capillary Exchange
Caused by inflammatory mediators
These produce – Vasodilatation Increase in capillary permeability Lowering of intercellular pressure
©EMSB
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Increase in capillary permeability Loss of fluid from circulation Loss of albumin from circulation Oedema formation
HYPOVOLAEMIA IS AN EARLY THREAT TO LIFE
Circulatory Effects
©EMSB
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Metabolic Effects of Burn
Secretion of stress hormones Neural response via
sympathetic nervous system and hypothalamus Suppression of anabolic
hormones and development of massive catabolic response Depression of immune
response
TachycardiaHyperthermia
Protein wasting
Susceptibility to infection
©EMSB
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First Aid
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First Aid
Stop the burning Stop! Drop! Cover (face) &
Roll! Remove all clothing If electrical - turn off power and
remove from electrical circuit If chemical - irrigate copiously
with water
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Cool the burn ASAP Any fluid 8º - 25ºC Continue ~20 minutes Effective within 3hrs post burn If chemical - irrigate copiously
with water Avoid hypothermia
First Aid
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With First Aid No First Aid
First Aid
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Never use ice as this can make the burn worse by decreasing blood flow
Toothpaste does not cool a burn and can increase pain
Butter or margarine do not provide adequate cooling
Creams do not cool a burn
Honey does not cool a burn
Hydrogels do not cool a burn wound adequately
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PLEASE NOTE: usual recommendations for burn first aid (20 minutes of cool running water) is contraindicated in cold burns
Rapid re-warming in bath of water between 40 - 420C for 15-30 minutes• Aims to minimise tissue loss and reduce chemical irritation. • Active motion whilst rewarming is recommended• Avoid massaging affected area during rewarming
Reverse Thermal/Cold Burn - First Aid
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Early Management
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Emergency Department
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Airway & C-spineBreathing & O2Circulation & haemorrhage controlDisabilityExposure & environment
Primary Survey
©EMSB
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Airway & C-spine
Upper (supraglottic) airway is subject to thermal injury Burns in a confined space (room, car) Burns above the clavicle
Onset hours after injury Stabilise C-spine
©EMSB
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When to Consider Intubation
Head and neck burns Soot in mouth, stridor, wheezing, breathing
difficult, laryngeal tug, hoarse voice Facial or neck swelling Large surface area burn >40% Burn in an enclosed space e.g. house, car Inhalation of gases
©EMSB
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Intubation
6 hours post burn Swelling, oedema
If in doubt - intubate
<1 hour post burn injury
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Would you intubate this child?
Photo courtesy of CHW
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Airway compromise
12 hrs post burn 36 hrs post burn obstructed intubated
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Breathing & O2
Check air entry – look, feel, listen Give O2: monitor with oximetry Lung injury due to smoke inhalation Lung effects of burns start days after injury Early lung problems are likely to be due to
associated injuries
©EMSB
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Circulation
Monitor vital signs Apply capillary blanching test centrally and in limbs
>2 secs indicate hypovolaemia or need for escharotomy on that limb; check another limb Inspect for any obvious bleeding – stop with direct
pressure or appropriate management.
©EMSB
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Insertion of IV access 2 IV cannulas inserted Preferably through unburned skin Sometimes an IO cannula is required
Bloods
Circulation
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Disability: Neurological Status
Establish level of consciousness: A - Alert V - Response to Vocal stimuli P - Responds to Painful stimuli U - Unresponsive
Pupillary response Restlessness, confusion, aggression and altered states
of consciousness may be due to hypovolaemia, hypoxia or CO poisoning as well as drugs, alcohol, etc
©EMSB
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Exposure with Environmental Control
Remove all clothing and jewellery
Keep patient warm
Log roll and examine posterior surfaces for burns and other injuries
Remove wet sheets
©EMSB
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Burn Depths
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Epidermis
Dermis- capillaries- nerves
Fat
Epidermal
Superficial Dermal
MidDermal
DeepDermal
Full Thickness
Burn Wound Healing = re-epithelisation
Burn Depth Classification
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Burn Depth Assessment
Depth Colour Blisters Cap Refill Sensation Healing
Epidermal Red No Present Present Yes
Superficial Dermal
Pale Pink Small Present Painful Yes
Mid-dermal Dark Pink Present Sluggish +/- Usually
Deep Dermal
Blotchy Red
+/- Absent Absent No
Full thickness
White No Absent Absent No
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Epidermal Burn
• Skin intact, red, brisk capillary refill
• Erythema not included in % TBSA assessment
• Heal spontaneously within 3-7 days with moisturiser or protective dressing
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Superficial Dermal Burn
• Blisters present or denuded
• Pink, brisk capillary refill
• Should heal within 7-14 days with minimal dressing requirements
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Mid Dermal Burn
• Heterogeneous, variable depths
• Dark pink, sluggish capillary refill
• Should heal within 14 -21 days• Deeper areas or over a joint
may need surgical intervention and referral
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Deep Dermal Burn
• Heterogeneous, variable depths
• Blotchy red/white Sluggish to absent capillary refill
• Surgical intervention• Refer to specialist unit
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Full Thickness Burn
• Outer skin, and some underlying tissue dead
• White, brown, red, black
• No capillary refill• Surgical intervention
and long-term scar management required
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Full Thickness Burn
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Burns are Dynamic
• The first impression may not be the most accurate
Day 1
Day 2
Day 5
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Burn SizeTBSA Assessment
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Surface Area Assessment
Head & Neck = 9%Arms (2 x 9) = 18%Trunk (front) = 18%Trunk (back) = 18%Legs (2 x 18) = 36%Perineum = 1%
100%
Rule Of Nine’s
©EMSB
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For every year of life take 1% from the head and add ½% to each leg At 9 yrs old body proportions
same as adult
©EMSB
Surface Area Assessment
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Palm and fingers of the patient
= 1% TBSA
Useful for small and scattered burns
Palmar Method
©EMSB
Surface Area Assessment
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TBSA Skill Station
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27% TBSAAdult
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22.5% TBSAAdult
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Adult Child
13% TBSA
What is the TBSA % ?
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Level 4, 67 Albert AvenueChatswood NSW 2067
PO Box 699Chatswood NSW 2057
T + 61 2 9464 4666F + 61 2 9464 4728
ACI Statewide Burn Injury Servicehttp://www.aci.health.nsw.gov.au/networks/burn-injury