Regarding awake fiberoptic intubation (AFOI) in a patient with anticipated difficult airway, all of the following are correct EXCEPT:

Explanation

## Awake Fiberoptic Intubation: Indications and Technique **Key Point:** Blind nasal intubation (BNI) is NOT a suitable substitute for AFOI in all scenarios. While BNI can be useful in selected cases (e.g., spontaneously breathing patient with mild-to-moderate difficulty), it is contraindicated or suboptimal in several high-risk situations: epiglottitis, retropharyngeal abscess, lingual thyroid, large tongue, severe trismus, or when there is significant risk of aspiration. ### Correct Statements About AFOI **High-Yield:** 1. **Topical anesthesia** — 4% lidocaine spray (or 10% spray) applied to oropharynx, larynx, and trachea reduces gag reflex and improves patient tolerance and visualization [cite:Gupta Textbook of Anesthesia] 2. **Dexmedetomidine advantage** — Maintains spontaneous ventilation, preserves airway reflexes, and provides anxiolysis without respiratory depression; propofol risks apnea and loss of airway tone 3. **Direct visualization of vocal cords** — Essential to confirm tracheal (not esophageal) placement of the endotracheal tube ### Why BNI is Not a Universal Alternative **Clinical Pearl:** Blind nasal intubation requires an intact, patent nasal airway and relies on breath sounds and "feel" — it offers no direct visualization and carries high risk of epistaxis, false passage creation, and esophageal intubation in difficult anatomy. In contrast, AFOI provides direct visualization and is the gold standard for anticipated difficult airway. **Mnemonic — AFOI Advantages:** **DIRECT** = Diagnostic visualization, Intubation confirmed, Reflexes preserved (with dexmedetomidine), Esophageal placement avoided, Complications reduced, Technique reliable ### Indications for AFOI Over BNI - Epiglottitis, retropharyngeal abscess, lingual thyroid - Severe trismus, limited mouth opening - High aspiration risk - Failed intubation anticipated - Cervical spine immobility (relative) **Warning:** Do not conflate BNI with AFOI. BNI is blind; AFOI is visualized. The former has a narrow, high-risk role; the latter is the standard of care for anticipated difficult airway.