Clinical Scenario:
A previously healthy 2-year-old boy develops a sudden episode of violent coughing while eating peanuts. The coughing subsides spontaneously, but over the next 3 days he continues to have persistent cough and intermittent wheeze. He is treated with inhaled bronchodilators without improvement.
On examination, he is afebrile with an oxygen saturation of 98% on room air. Breath sounds are markedly reduced over the right lung with localized monophonic wheeze. Chest radiograph (inspiratory and expiratory views) is reported as normal.
What is the most appropriate next step in management?
A. Reassure the parents and discharge
B. Start intravenous antibiotics
C. Perform flexible bronchoscopy
D. Perform rigid bronchoscopy
E. Repeat chest radiograph after one week
Correct answer & Explanation:
Correct Answer: D. Perform rigid bronchoscopy
Explanation
This child has a classic history of foreign body aspiration:
- Sudden onset of choking while eating peanuts
- Persistent cough despite bronchodilator therapy
- Localized unilateral reduction in breath sounds
- Localized monophonic wheeze
- Normal chest radiograph
A normal chest radiograph does not exclude foreign body aspiration, as many aspirated objects (especially peanuts and other organic materials) are radiolucent.
When the clinical suspicion is high, rigid bronchoscopy is indicated even if the chest X-ray is normal. Rigid bronchoscopy remains the gold standard because it allows both confirmation of the diagnosis and safe removal of the foreign body while maintaining airway control.
Why the other options are incorrect
A. Reassure the parents and discharge
Incorrect. Persistent unilateral physical findings after a witnessed choking episode require definitive evaluation.
B. Start intravenous antibiotics
Incorrect. There is no evidence of bacterial pneumonia. Antibiotics do not treat an aspirated foreign body.
C. Perform flexible bronchoscopy
Incorrect. Flexible bronchoscopy is useful diagnostically in selected situations, but rigid bronchoscopy is the procedure of choice in children because it provides superior airway control and facilitates foreign body extraction.
D. Perform rigid bronchoscopy
Correct. High clinical suspicion of foreign body aspiration warrants rigid bronchoscopy regardless of chest radiograph findings.
E. Repeat chest radiograph after one week
Incorrect. Delaying diagnosis increases the risk of airway obstruction, recurrent pneumonia, bronchiectasis, and chronic lung damage.
Learning Point
Approximately 20–30% of children with foreign body aspiration may have a normal chest radiograph, particularly when the foreign body is radiolucent. A witnessed choking episode, followed by persistent unilateral wheeze or decreased breath sounds, should prompt rigid bronchoscopy, even if imaging is normal.
