Essentials Of Burns Management Wk11 Flashcards

1
Q

What is a burn?

A
  • thermal, coagulative injury to the skin

- causes physical and psychological trauma

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2
Q

Name types of burns

A
Scald
Flame
Flash
Contact
Chemical
Electrical
Friction
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3
Q

Epidemiology of burns

A
  • 250,000 burns in UK each year
  • 1% of A&E attendances
  • Males > females (industrial, more likely to be idiots)
  • Predisposing factors - elderly, medical conditions, alcohol, carelessness
  • Flame (adult) and scald (children) most common
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4
Q

What is the cost of a burn?

A
  • acute hospital care
  • out patient care
  • rehabilitation care
  • loss of vocational activities
  • loss of recreational activities
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5
Q

What is the systemic response to major burns?

A
Respiratory
- bronchoconstriction
- adult respiratory distress syndrome
Cardiovascular
- reduced myocardial contractility
- increased capillary permeability
- peripheral and splanchnic vasoconstriction
Metabolic
- basal metabolic rate increased threefold
Immunological
- reduced immune response
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6
Q

General principles of burns

A
Rescue
Resuscitate
Resurface
Reconstruct
Rehabilitate
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7
Q

First aid of burns

A

Stop the burning process
Cool the burn
Cover the burn
Keep warm

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8
Q

ABC

A

Airway (facial burns, singed nasal hair, carbonaceous sputum, hoarse voice, altered consciousness, respiratory distress, stridor)
Breathing (o2, assess for possible airway burns, anaesthetic review (intubation?), look and listen to chest, arterial blood gas, chest x ray)
Circulation (IV access and replacement of lost fluid, peripheral pulses, capillary refill, check for circumferential burns, monitoring (urine output, pulse, BP))

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9
Q

Escharotomy

A
  • circumferential deep burns
  • restricts distal circulation + mechanical effect on ventilation
  • taking diathermy and cut through burn tissue to allow to spring open
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10
Q

Secondary survey

A

Disability
Exposure - log roll etc.
(Check for other injuries, imaging/investigations, catheter, lines, burns dressing, tetanus toxoid, keep warm)

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11
Q

How do you assess size of burns?

A
  • total body surface area + age + 17 (if inhalation injury)

= % mortality

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12
Q

Size of burn, rule of 9s

A
  • rough estimate for percentages that each burn affects body
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13
Q

What is the standard method of assessing burns

A

Lund and Browder

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14
Q

Erythema

A
  • e.g. sunburn
  • epidermis only
  • red, blanching (rapidly refills)
  • very painful: nerve endings exposed
  • heals rapidly without scarring
  • exclude from TBSA calculations
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15
Q

Superficial partial thickness

A
  • skin loss and blistering
  • wet
  • red
  • blanches with pressure
  • painful: nerves exposed and damaged
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16
Q

Deep partial thickness

A
  • drier and paler
  • cherry red darker appearance
  • “fixed staining” - does not blanch with pressure - small capillaries in skin are thromboses and dont blanch
  • sensation may be reduced
17
Q

Full thickness

A
  • dry, leathery appearance and texture
  • “painless” - not necessarily
  • no capillary refill
  • rock hard
  • black and charred
18
Q

Assessing depth of burn

A
  • easier when very superficial or very deep
  • most burns are mixed depth
  • burn depth evolves over first 48 hours - burns are dynamic wounds
19
Q

Parkland formula

A
  • Hartmann’s fluid
  • common crystallised fluid
  • fluid (over 24 hours) = 4 x weight (kg) x TBSA (%)
  • Half given in 8 hours, half in next 16 hours
  • calculated from time of burn, not time of arrival
20
Q

Pros of excising a burn

A
  • potential source of infection
  • burn stimulates inflammatory effects
  • early excision and grafting may leave better scars
21
Q

Cons of excising a burn

A
  • non full thickness burns may heal spontaneously
  • burn surgery can be hazardous
  • leaves additional wound (donor sites)
22
Q

Long term management

A
  • hypertrophic Scars
  • scar contractures
  • psychological support
  • burn camps for children