Esophageal Foreign Body Management in Children

Anatomical Considerations

Foreign body impaction in children commonly occurs at the level of the hypopharynx or upper thoracic esophagus due to anatomical narrowing at the cricopharyngeus muscle and aortic arch 1
The C4-C7 vertebral level corresponds to the upper esophageal sphincter and the beginning of the thoracic esophagus, an area where coins frequently become lodged 2
Children are particularly vulnerable to foreign body impaction due to their smaller esophageal diameter compared to adults 3

Coins lodged at the C4-C7 level require urgent flexible endoscopy (within 24 hours) if there is no complete obstruction 4
If the coin is causing complete esophageal obstruction, emergent endoscopy (within 2-6 hours) is recommended to prevent complications such as aspiration and perforation 4
Flexible endoscopy is the first-line approach for most esophageal foreign bodies 5
Rigid endoscopy should be considered for foreign bodies in the upper esophagus 4

Children aged 3 years or younger account for more than three-fourths (77.1%) of choking episodes 3
Coins are the most common non-food foreign bodies ingested by children 3

Prolonged retention of coins in the esophagus can lead to pressure necrosis, perforation, and mediastinitis 6
The smaller diameter of a child's airway means that even small changes in the cross-section can lead to dramatic changes in airway resistance and air flow 3
Aspiration is a risk if the coin dislodges and enters the airway 4

Confirm coin location with biplanar radiography (AP and lateral views) 1
Assess for signs of complete obstruction (inability to swallow saliva, drooling, respiratory distress) 1
If complete obstruction: emergent endoscopy within 2-6 hours 4
If no complete obstruction: urgent endoscopy within 24 hours 4