Advanced Trauma Life Support ATLS Student Course Manual 2018

CHAPTER SUMMARY 183
reserved for identified infections. Keep the wounds
clean, and leave uninfected nonhemmorhagic blisters
intact for 7 to 10 days to provide a sterile biologic
dressing to protect underlying epithelialization.
Tobacco, nicotine, and other vasoconstrictive agents
must be withheld. Instruct the patient to minimize
weight bearing until edema is resolved.
Numerous adjuvants have been attempted in an
effort to restore blood supply to cold-injured tissue.
Unfortunately, most are ineffective. Sympathetic
blockade (e.g., sympathectomy or drugs) and vasodilating
agents have generally not proven helpful in
altering the progression of acute cold injury. Heparin
and hyperbaric oxygen also have failed to demonstrate
substantial treatment benefit. Retrospective case series
have suggested that thrombolytic agents may show
some promise, but only when thrombolytic therapy was
administered within 23 hours of the frostbite injury.
Occasionally patients arrive at the ED several days
after suffering frostbite, presenting with black, clearly
dead toes, fingers, hands, or feet. In this circumstance,
rewarming of the tissue is not necessary.
With all cold injuries, estimations of depth of injury
and extent of tissue damage are not usually accurate
until demarcation is evident. This often requires
several weeks or months of observation. Dress these
wounds regularly with a local topical antiseptic to
help prevent bacterial colonization, and debride them
once demarcation between live and dead tissue has
developed. Early surgical debridement or amputation
is seldom necessary, unless infection occurs.
core temperature below 32°C (89.6°F). Hypothermia is
common in severely injured individuals, but further loss
of core temperature can be limited by administering
only warmed intravenous fluids and blood, judiciously
exposing the patient, and maintaining a warm
environment. Avoid iatrogenic hypothermia during
exposure and fluid administration, as hypothermia
can worsen coagulopathy and affect organ function.
The signs of hypothermia and its treatment are
explained in more detail in Appendix B: Hypothermia
and Heat Injuries.
The team leader must:
TeamWORK
••
Ensure that the trauma team recognizes the
unique aspects of applying the ATLS principles
to treating burn-injured patients.
••
Help the team recognize the importance of
limiting exposure to minimize hypothermia in
the patient and infection of the burn.
••
Encourage the trauma team to communicate
early and regularly regarding concerns
about the challenges of resuscitating a burninjured
patient (e.g., IV access and need for
escharotomies).
Cold Injury: Systemic
Hypothermia
Trauma patients are susceptible to hypothermia,
and any degree of hypothermia in them can be
detrimental. Hypothermia is any core temperature
below 36°C (96.8°F), and severe hypothermia is any
Pitfall
prevention
Chapter Summary
1. Burn injuries are unique; burn inflammation/edema
may not be immediately evident and requires
comprehension of the underlying pathophysiology.
2. Immediate lifesaving measures for patients with
burn injury include stopping the burn process,
recognizing inhalation injury and assuring an
adequate airway, oxygenation and ventilation,
and rapidly instituting intravenous fluid therapy.
Patient becomes
hypothermic.
• Remember, thermoregulation
is difficult in patients with burn
injuries.
• If irrigating the burns, use warmed
saline.
• Warm the ambient temperature.
• Use heating lamps and warming
blankets to rewarm the patient.
• Use warmed IV fluids.
3. Fluid resuscitation is needed to maintain
perfusion in face of the ongoing fluid loss from
inflammation. The inflammatory response that
drives the circulatory needs is directly related to
the size and depth of the burn. Only partial and full
thickness burns are included in calculating burn
size. The rule of nines is a useful and practical guide
to determine the size of the burn, with children
having proportionately larger heads.
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