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A Missed Bronchial Foreign Body Presenting with Pneumomediastinum And Subcutaneous Emphysema
Abstract
Background: Pnemomediastinum with subcutaneous emphysema is a rare but potentially fatal sequalae of bronchial foreign body aspiration. An 18-month-old female presented to the Accident and Emergency (A&E) department with a 28-hour history of sudden onset choking, cough, shortness of breath and fever. At the onset of symptom, some pieces of groundnut seed were found in her immediate surroundings, but no eyewitness accounted of what transpired. Oxygen saturation was 64% on intranasal Oxygen support. The child had cardiac arrest twice and was resuscitated; first at presentation and then on the theatre table, during induction of anaesthesia. Bronchoscopy revealed edematous bronchus; secretions were suctioned, and the visible groundnut seeds lodged within the bronchial lumen retrieved. Further careful search revealed no other obvious remnant. Symptoms improved immediate postop but deteriorated about 12 hours later, with worsening dyspnoea, fever, pneumomediastinum and subcutaneous emphysema. She had a revision bronchoscopy, and another piece of ground-nut seed was identified and retrieved. All respiratory symptoms gradually resolved within the next 48hours, and she was discharged home.
Conclusion: Though an uncommon mode of presentation, foreign body aspiration should be ruled out in any child with unexplained subcutaneous emphysema around the lower neck and upper chest region in the presence of other acute lower respiratory tract symptoms. Emergency bronchoscopy remains the gold standard of treatment.