A 3-year-old boy is brought to the emergency department by his mother with a 6-hour history of sudden-onset coughing and difficulty breathing after playing with small toys. On examination, he is in mild respiratory distress with stridor. Chest auscultation reveals decreased air entry on the right side. A chest X-ray shows a radiopaque object in the right main bronchus with hyperinflation of the right lung. What is the most appropriate immediate management?

Explanation

## Management of Foreign Body in Tracheobronchial Tree ### Clinical Presentation Recognition **Key Point:** The classic triad of foreign body aspiration is: sudden onset coughing, unilateral decreased air entry, and unilateral hyperinflation on imaging. ### Diagnostic Findings in This Case - **Radiopaque object** = visible on plain X-ray (metallic or radiopaque material) - **Right main bronchus location** = confirmed on imaging - **Hyperinflation of right lung** = ball-valve obstruction mechanism - **Stridor present** = indicates significant airway compromise ### Why Rigid Bronchoscopy Is Correct **High-Yield:** Rigid bronchoscopy is the gold standard for removal of foreign bodies from the tracheobronchial tree in pediatric patients because: 1. **Superior visualization** — allows complete visualization of the airway and foreign body 2. **Better instrumentation** — rigid scope provides a working channel for grasping forceps, hooks, and baskets 3. **Airway protection** — allows ventilation around the scope if needed 4. **Speed and safety** — faster removal reduces aspiration risk and hypoxemia 5. **General anaesthesia** = mandatory for patient immobilization and airway control ### Timing **Clinical Pearl:** Foreign body aspiration is a surgical emergency. Delayed removal risks: - Granulation tissue formation around the object - Mucosal edema and swelling - Increased difficulty of removal - Risk of complete airway obstruction ### Contraindications to Conservative Management - Symptomatic patient (stridor, respiratory distress present) - Confirmed foreign body on imaging - Radiopaque object (cannot be missed) - Duration >6 hours (risk of mucosal changes) ```mermaid flowchart TD A[Suspected Foreign Body Aspiration]:::outcome --> B{Symptomatic?}:::decision B -->|Yes| C{Confirmed on imaging?}:::decision B -->|No| D[Observe, serial X-rays] C -->|Yes| E[Rigid bronchoscopy under GA]:::action C -->|No| F[Flexible bronchoscopy or repeat imaging] E --> G[Foreign body removed]:::outcome D --> H{Develops symptoms?}:::decision H -->|Yes| E H -->|No| I[Discharge with precautions]:::outcome ``` ## Why Other Options Are Incorrect **Flexible bronchoscopy under topical anaesthesia** — While flexible scopes are useful for diagnosis, they lack the working channel and instrumentation power needed for safe removal of foreign bodies, especially in pediatric patients. Topical anaesthesia alone is inadequate for a 3-year-old. **Nebulized epinephrine with observation** — This is dangerous. Epinephrine may temporarily reduce stridor but does NOT remove the foreign body. Observation risks complete airway obstruction, aspiration, and mucosal damage. This is contraindicated in symptomatic, confirmed cases. **CT scan before intervention** — CT is unnecessary when chest X-ray has already confirmed the diagnosis and location. Further imaging delays definitive treatment and increases radiation exposure. Immediate bronchoscopy is indicated.