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Traumatic Asphyxia: Causes, Symptoms, and Emergency Response

Traumatic asphyxia (Perthes' syndrome) results from sudden, severe thoracic compression with a closed glottis, causing retrograde venous surge and capillary rupture. It is distinct from simple airway obstruction.

Classic Mechanism

  • Crush injury (vehicle rollover, building collapse, crowd surge)
  • Heavy object on chest/abdomen
  • Strangulation/hanging with simultaneous Valsalva

Pathognomonic Signs

  • Cervicofacial cyanosis/plethora: Deep blue-red discoloration of face, neck, upper chest, conjunctivae.
  • Subconjunctival hemorrhages: Often bilateral, extensive.
  • Petechiae: Face, neck, upper trunk, eyelids.
  • Neurologic: Seizures, altered consciousness, cortical blindness (from venous congestion).

Associated Injuries

  • Rib fractures, pulmonary contusions, pneumothorax
  • Cardiac contusion, aortic injury
  • Abdominal organ rupture (liver, spleen)
  • Cervical spine injury

Emergency Management

  1. Airway protection (intubation if GCS ≤8 or respiratory compromise).
  2. Supplemental oxygen; monitor SpO2, EtCO2.
  3. IV access; cautious fluid resuscitation (avoid volume overload with potential cardiac injury).
  4. Continuous cardiac monitoring; ECG for arrhythmias/troponin.
  5. Imaging: CXR, CT chest/abdomen/pelvis, cervical spine.
  6. Neurologic serial exams; EEG if seizures.

Prognosis

Isolated traumatic asphyxia often resolves fully in days-weeks. Mortality driven by associated injuries. Neurologic sequelae possible if hypoxic-ischemic insult occurred.

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