## Approach to Grade III Laryngoscopic View **Key Point:** Grade III view (only epiglottis visible, no vocal cords) is a difficult but manageable intubation scenario that does NOT immediately mandate emergency surgical airway. **High-Yield:** The bougie (gum elastic introducer) is the single most useful adjunct for Grade III views. It allows blind passage through the glottis, followed by railroading the endotracheal tube over it. ### Why Bougie Works 1. Can be advanced blindly past the epiglottis into the trachea (tactile feedback from tracheal rings) 2. Reduces intubation failure rate from ~50% to ~90% success with Grade III view 3. Avoids delay and maintains oxygenation with ongoing bag-mask ventilation between attempts 4. Preserves the patient's airway without emergency intervention **Clinical Pearl:** The "bougie technique" is the standard rescue maneuver for Cormack-Lehane Grade III. Success is achieved by: - Advancing bougie at 45° angle under the epiglottis - Feeling the characteristic "hold-up" as it lodges in the bronchus - Railroading the tube over the bougie ### Why Other Options Are Incorrect | Option | Why Wrong | |--------|----------| | Cricothyrotomy | Reserved for Grade IV views (no epiglottis visible) or failed intubation with inability to oxygenate. Grade III is not an emergency surgical airway indication. | | Wake and reschedule | Unnecessary delay and patient morbidity. Bougie allows safe intubation in the current anesthetic. | | Blind nasal intubation | Contraindicated in apneic patient post-succinylcholine; risks aspiration and epistaxis. | **Warning:** Do NOT confuse Cormack-Lehane Grade III (epiglottis visible) with Grade IV (no epiglottis visible). Only Grade IV + failed oxygenation = emergency surgical airway. [cite:Walls & Murphy Emergency Airway Management Ch 5]
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