A 58-year-old male with a history of chronic obstructive pulmonary disease (COPD) and cor pulmonale presents to the emergency department with acute exacerbation of COPD. He requires mechanical ventilation for respiratory failure. After 3 weeks of endotracheal intubation, he develops signs of laryngeal edema and stridor. The intensivist decides to perform a tracheostomy. Which of the following is the PRIMARY indication for tracheostomy in this patient?

Explanation

## Indication for Tracheostomy in Prolonged Mechanical Ventilation **Key Point:** Tracheostomy is indicated when endotracheal intubation is expected to exceed 7–10 days, as prolonged ET intubation causes laryngeal edema, stenosis, and vocal cord injury. ### Clinical Context This patient has been intubated for 3 weeks and is now developing laryngeal edema with stridor — classic signs of laryngeal injury from prolonged ET tube pressure. Tracheostomy bypasses the larynx and allows: - Removal of the ET tube, reducing direct laryngeal trauma - Long-term secure airway access without further laryngeal damage - Easier weaning from mechanical ventilation - Improved patient comfort and ability to communicate (with speaking valves) ### Indications for Tracheostomy | Indication | Rationale | |---|---| | **Prolonged mechanical ventilation (>7–10 days)** | Prevents laryngeal stenosis, vocal cord paralysis, laryngeal web formation | | **Airway obstruction** | Malignancy, bilateral vocal cord paralysis, laryngeal stenosis | | **Inability to protect airway** | Severe bulbar dysfunction, coma, absent gag reflex | | **Recurrent aspiration** | Allows subglottic secretion drainage | | **Facilitation of weaning** | Reduces dead space, improves compliance | **High-Yield:** The 7–10 day rule is a NEET PG favourite. Prolonged ET intubation (>2 weeks) carries a 50% risk of post-extubation stridor and significant risk of permanent laryngeal stenosis. **Clinical Pearl:** Once laryngeal edema develops (as in this case), tracheostomy is urgent to prevent further injury and allow the larynx to heal. ### Why This Patient Needs Tracheostomy Now 1. Already 3 weeks intubated (well beyond 7–10 days) 2. Already showing signs of laryngeal injury (edema, stridor) 3. Likely to need prolonged ventilation due to COPD and cor pulmonale 4. Tracheostomy will prevent irreversible laryngeal damage