ATLS | Airway

🛑 Acute Airway & Ventilation Review

1) 🫁 Acute Airway Obstruction & Compromise

Patho: Fastest killer in trauma. Obstruction may be complete/partial/progressive. Common: tongue occluding hypopharynx with ↓LOC; also vomit, blood/secretions, teeth/FBs. ↓LOC → high aspiration risk → often needs definitive airway. RSI Meds:

• Etomidate 0.3 mg/kg → sedation w/ minimal BP/ICP effect; watch adrenal suppression & hypovolemia.
• Succinylcholine 1–2 mg/kg → rapid, brief paralysis; avoid in crush/burns/electrical/CKD/neuromuscular dz (↑K⁺). If fail intubation → BVM until recovery. Team Roles: 👨‍⚕️ Leader/Airway → assess & choose route/timing; plan for difficult airway. 👩‍⚕️ RN → suction ready, draw RSI meds, SpO₂/ETCO₂ monitoring, manual C-spine restriction. 🫁 RT → ventilator setup, capnography confirmation. 🧠 Consultants (neurosurg) for head-injured timing. Key Signs (🚨): No response/abnormal speech, stridor/gurgle/snore, absent breath sounds, agitation (hypoxia), tachypnea, cyanosis (late). RN Actions: Stimulate for verbal response; jaw-thrust/chin-lift; suction + log-roll lateral if vomit (maintain C-spine); pre-oxygenate 100% before/after attempts; OPA/NPA as bridge; high-flow O₂ ≥10 L/min; continuous SpO₂ + ETCO₂. Quick Hits:
• Priority #1 = airway & ventilation.
• Intubate if GCS ≤8, seizures, cannot maintain patency/oxygenation.
• Maintain C-spine throughout.
• Drug-assisted intubation needs rescue plan (surgical airway).
• Confirm ETT: bilateral breath sounds + exhaled CO₂ ✅.

2) 🗣️ Traumatic Airway Injuries (Laryngeal/Neck/Maxillofacial)

Patho: Neck hematoma displaces airway; larynx/trachea disruption → bleeding into tree; facial fx + swelling/teeth/secretions obstruct; bilateral mandibular fx = loss of support (esp. supine). Med pearls: Avoid nasal tubes if cribriform/basilar skull fx suspected. Team: 🔪 Surgeon → hemorrhage control & emergent airway (cric > trach in ED). 🖼️ Imaging (CT) after airway secure. 👩‍⚕️ RN/Airway → anticipate rapid loss; gentle ETT under direct vision if laryngeal injury. Red Flags (🚨): Laryngeal triad = hoarseness + subQ emphysema + palpable fracture; expanding neck hematoma/stridor; basilar skull signs (raccoon eyes, Battle’s, CSF leak) → no nasotracheal; refusing supine (mandible issues). RN Actions: Watch for swelling/SC air; be ready for surgical airway; avoid nasal routes with facial/skull fx. Quick Hits: Cric preferred; LEMON for difficulty; OTI is first-line when feasible.

3) 🌬️ Ventilatory Compromise

Patho: Ventilation failure from chest mechanics (rib fx/flail), CNS depression, or SCI.

• SCI: Above/below C3 → diaphragmatic-only breathing; rapid shallow ≠ effective → atelectasis → failure.
• Chest trauma: Pain → splinting → shallow breaths → hypoxemia. Sedation/Analgesia: Helps tolerance of assisted ventilation, but excess can abolish tone → airway loss ⚠️. Team: 👩‍⚕️ RN/Airway → assess symmetry, listen for ↓/absent sounds; beware PPV converting simple → tension pneumo or causing barotrauma. 🫁 RT → PPV, ETCO₂ monitoring. 👨‍⚕️ MD → ABGs; treat pain/CNS causes. Key Signs (🚨): Seesaw/abdominal breathing (SCI), asymmetrical rise (pneumo/flail), ↓/absent sounds, accessory muscle use. RN Actions: Check symmetric rise & bilateral air entry; 2-person BVM if needed; if poor sounds → alert for pneumo; continuous ETCO₂ for ventilation; protect head-injured from hypercarbia.