Immediate Airway Management for Post-Strangulation Stridor

Immediate Actions

The British Journal of Anaesthesia recommends that the most experienced available operator must manage this airway given the high-risk nature of traumatic upper airway injury with evolving edema 1, 2
The patient should be moved to a controlled setting with full monitoring and rescue equipment immediately available 2
Videolaryngoscopy should be ready as first-line device, as it maximizes first-pass success in edematous airways 1, 2
Preparation for front-of-neck access (FONA) with scalpel technique should be immediately available before attempting intubation, as this airway may rapidly progress to "cannot intubate, cannot oxygenate" 1, 2

Inhaled racemic epinephrine should be administered immediately to temporarily reduce airway edema while preparing for intubation 3, 4
Systemic corticosteroids may be considered, though their benefit is primarily for post-extubation stridor prevention rather than acute traumatic edema 5, 6
The patient should be kept upright to optimize airway patency and reduce work of breathing 7

Modified rapid sequence intubation (RSI) should be used as the most appropriate technique for patients with airway obstruction 2
Preoxygenation should be thorough, though this may be limited by patient distress 7
Vasopressors should be immediately available, as hemodynamic instability is common during RSI in critically ill patients 7
Ketamine 1-2 mg/kg IV is preferred as it maintains cardiovascular stability and preserves airway reflexes better than other induction agents 7
Rocuronium should be used for neuromuscular blockade to ensure full paralysis before laryngoscopy, preventing coughing and further airway trauma 7
Succinylcholine should be avoided if significant time has passed since injury due to potential hyperkalemia risk 8

Videolaryngoscopy should be first-line to maximize visualization in an edematous, potentially distorted airway 1, 2, 7
A bougie should be immediately available to facilitate tube passage through the narrowed airway 7
Smaller endotracheal tubes than predicted should be prepared as strangulation causes significant laryngeal edema that narrows the glottic opening 7
Intubation attempts should be limited to a maximum of 3 before transitioning to FONA 7

Intubation should not be delayed waiting for the patient to "improve" — stridor following strangulation indicates progressive edema that will worsen, not resolve spontaneously 9, 7
Awake intubation should not be attempted in a distressed patient with evolving airway obstruction, as this will worsen obstruction 1
Excessive positive pressure ventilation should not be used immediately post-intubation, as this can cause hemodynamic collapse 7
The patient should not be transferred to another location if they are deteriorating — the team and equipment should be brought to the patient 1

Strangulation causes direct laryngeal trauma with progressive edema that typically worsens over the first 24 hours post-injury 9
Stridor indicates at least 50% airway narrowing and represents impending complete obstruction 9
Post-extubation stridor occurs in 25-75% of pediatric cases but is rare in adults unless there is significant airway injury 9