Drowning
Considerations
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Trauma/ATLS approach:
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Possible C-spine injury
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Hemorrhage/occult injuries
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Co-ingestions
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Hypothermia:
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Coagulopathy
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Arrhythmias
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Hypovolemia
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Rewarming technique
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Electrolyte abnormalities
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Multi-organ system dysfunction:
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ARDS
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Hypoxic brain injury
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Electrolyte abnormalities (↑K+), cell lysis 2nd to fresh water drowning
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Shock
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ARF
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Etiology of drowning:
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Adults: arrhythmia (long QT syndrome), seizure, trauma, MI, intoxication
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Children: abuse, unsupervision
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Goals/Conflicts
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Primary Resuscitation to ensure adequate oxygen exchange and perfusion pressure
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Prevent secondary injury: C-spine precautions
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Aggressive rewarming
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100% mortality = Submersion > 25 min, Resuscitation > 25 min, Pulseless on arrival to ED, Unconscious at scene and on arrival to ED
Treatment
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Treat hypoxia: restore oxygenation and ventilation
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Rescue breaths
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Endotracheal intubation
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100% oxygen until ROSC then FiO2 to keep SpO2 > 92%
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Treat cardiac arrest: may be PEA, systole, VT/VF
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Follow ACLS guidelines
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Modifications for hypothermia: active rewarming until 34ºC then passive
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Consider 24 hours of therapeutic hypothermia (32-34ºC)
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Cervical spine injury extremely rare (0.009%): do not place C-spine collar unless mechanism for C-spine injury is suggested