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Laryngeal foreign bodies in children: a persistent, life-threatening problem
1Ear, Nose and Throat Department, Cardinal Glennon Children's Hospital, St. Louis, Mo.
Insights
Foreign object aspiration in the pediatric larynx is dangerous, causing significant mortality and morbidity. Two types of objects, bulky and thin, lead to distinct obstruction patterns and outcomes.
Area of Science:
- Pediatric Otolaryngology
- Emergency Medicine
- Medical Device Safety
Background:
- Foreign body aspiration is a common pediatric emergency.
- Laryngeal foreign bodies present unique challenges due to airway anatomy.
- Previous studies have not fully characterized the types and outcomes of laryngeal foreign bodies.
Purpose of the Study:
- To analyze the incidence, types, and outcomes of foreign object aspiration in the pediatric larynx.
- To differentiate between obstructive patterns caused by different foreign body types.
- To provide recommendations for improved intervention strategies.
Main Methods:
- Retrospective review of pediatric patients admitted for foreign body aspiration.
- Categorization of foreign bodies based on shape and material.
- Analysis of clinical outcomes, including mortality and hypoxic encephalopathy.
Main Results:
- 11 true glottic foreign bodies were identified, representing 12.1% of airway foreign bodies.
- Laryngeal obstruction resulted in a 45% mortality rate and 27% transient hypoxic encephalopathy.
- Bulky objects (e.g., food) caused severe obstruction; thin, laminar objects mimicked inflammatory conditions.
Conclusions:
- Foreign bodies in the pediatric larynx carry a high risk of severe outcomes.
- Distinct object types necessitate different diagnostic and management approaches.
- Endoscopic evaluation is crucial for diagnosing and removing laryngeal foreign bodies.
Abstract:
We reviewed the records of all patients admitted to Cardinal Glennon Children's Hospital for foreign object aspiration from 1980 to 1987. There were 11 true glottic bodies, which accounted for 12.1% of the 91 foreign bodies detected in the airways. A mortality rate of 45% (5 patients) and transient hypoxic encephalopathy in 27% (3 patients) indicate the often tragic outcome of obstruction in the pediatric larynx. Two distinct types of foreign bodies were responsible for laryngeal obstruction in these children. The first group consisted of bulky items, mostly food, and resulted in a more severe type of obstruction, with higher mortality and morbidity. The second group of objects were thin, laminar, triangular bodies, which tended to wedge unsuspectedly in the larynx, mimicking inflammatory diseases and requiring endoscopy for their removal. Hypothetical models are used to explain the physical phenomena that occur in foreign body obstruction in the two different groups. Recommendations for intervention are made based on the conclusions.