A 58-year-old male with a 40 pack-year smoking history presents with progressive dyspnea and stridor over 3 weeks. Flexible laryngoscopy reveals a 2 cm subglottic mass causing 70% airway narrowing. Biopsy confirms squamous cell carcinoma. The patient is scheduled for total laryngectomy with adjuvant radiotherapy. Before induction of anesthesia, which of the following is the most appropriate immediate airway management?

Explanation

## Clinical Context This patient has a laryngeal malignancy causing significant airway obstruction (70% narrowing) with stridor. Any manipulation of the airway — including laryngoscopy, intubation attempts, or anesthesia induction — risks complete airway obstruction, loss of airway patency, and inability to ventilate. ## Why Elective Tracheostomy Under Local Anesthesia is Correct **Key Point:** In patients with critical airway stenosis or obstruction (>50–70% narrowing), elective tracheostomy under local anesthesia establishes a definitive, secure airway BEFORE general anesthesia induction, avoiding the risk of complete obstruction during laryngoscopy or intubation attempts. **High-Yield:** Tracheostomy indications include: - Airway obstruction (tumors, stenosis, laryngeal papillomatosis) - Prolonged mechanical ventilation (>7–10 days) - Severe aspiration risk - Severe obstructive sleep apnea - Severe head/neck trauma **Clinical Pearl:** Local anesthesia with sedation allows the patient to maintain spontaneous breathing and airway reflexes during the procedure, reducing aspiration and hypoxemia risk. Once the tracheostoma is created and the tube is placed, a secure airway is established; general anesthesia can then be safely induced for the planned laryngectomy. ## Mechanism ```mermaid flowchart TD A[Laryngeal malignancy with stridor]:::outcome --> B{Airway narrowing >50%?}:::decision B -->|Yes| C[Risk of complete obstruction with laryngoscopy/intubation]:::urgent C --> D[Elective tracheostomy under local anesthesia]:::action D --> E[Secure airway established]:::outcome E --> F[Safe induction of general anesthesia]:::action F --> G[Proceed with laryngectomy]:::action B -->|No| H[Awake fiberoptic intubation acceptable]:::action ``` **Rationale:** Tracheostomy bypasses the narrowed larynx, providing a patent airway independent of the tumor. The procedure is performed under local anesthesia to preserve airway reflexes and spontaneous breathing until the tracheostoma is secure. [cite:Cummings Otolaryngology 6e Ch 82]