According to the Difficult Airway Society (DAS) algorithm, what is the PRIMARY initial management step when a difficult airway is anticipated BEFORE induction of general anesthesia?

Explanation

## Difficult Airway Algorithm: Anticipated Difficult Airway **Key Point:** The DAS algorithm emphasizes PREVENTION and PREPARATION when difficulty is ANTICIPATED before induction. ### DAS Algorithm Pathway for Anticipated Difficult Airway **High-Yield:** When a difficult airway is predicted preoperatively (based on clinical assessment, imaging, or previous anesthetic records), the algorithm mandates: 1. **Awake fiberoptic intubation (AFI)** — the gold standard for anticipated difficult airway 2. **Senior anesthetist involvement** — early escalation 3. **Preservation of spontaneous ventilation** — maintains airway reflexes and gas exchange 4. **Topical anesthesia + sedation** — allows patient cooperation ### Why Awake Fiberoptic Intubation? - Patient remains conscious and maintains airway patency - Allows real-time visualization of laryngeal anatomy - Permits repositioning if visualization is inadequate - Avoids the "cannot intubate, cannot ventilate" scenario - Success rate >95% in experienced hands [cite:Difficult Airway Society Guidelines] ### Alternative Approaches (Only if AFI Contraindicated) - **Video laryngoscopy** with awake patient - **Retrograde intubation** - **Surgical airway** (if obstruction present) **Clinical Pearl:** The DAS algorithm is a **prevention-first** strategy. Once you induce general anesthesia in an anticipated difficult airway, you lose the patient's airway reflexes and spontaneous ventilation — this is when true emergencies occur. **Mnemonic: AWAKE** — Airway, Wakefulness, Awake fiberoptic, Keep spontaneous ventilation, Early senior help