Emergency Department Management of Esophageal Food‑Bolus Impaction

Initial Assessment & Imaging

Contrast swallow studies should be avoided because they raise aspiration risk, coat the mucosa and impair endoscopic visualization, and they delay definitive treatment. 1
CT scanning is recommended when perforation or complications are suspected; it has a sensitivity of 90‑100 % versus 32 % for plain radiography and is especially useful for detecting bone fragments, mediastinitis, abscess, or aortic/tracheal fistulas. 2
Plain radiographs have limited value – they detect radiopaque objects with up to 85 % sensitivity but miss most food‑bolus impactions. 2

Emergent endoscopy (within 2–6 h) is indicated for complete esophageal obstruction when the patient cannot manage secretions, due to the high risk of aspiration and perforation. 1
Urgent endoscopy (within 24 h) is appropriate for incomplete obstruction in patients who can tolerate secretions. 1

The “push” technique (gentle air insufflation and advancement of the bolus into the stomach) is the preferred first‑line approach, achieving approximately 90 % success with low complication rates. 1
If the push technique fails, a balloon catheter (e.g., ERCP stone‑extraction catheter) should be passed beyond the bolus, inflated, and withdrawn to disimpact the food, followed by retrieval with a net. 3
Retrieval devices (baskets, snares, grasping forceps) are reserved for resistant boluses or sharp objects after the push technique has been attempted. 3
General anesthesia with endotracheal intubation is recommended for most cases to protect the airway during the procedure. 1

Esophageal biopsies must be obtained during the endoscopic procedure to assess for underlying disorders, particularly eosinophilic esophagitis (EoE). 3
Underlying esophageal disease is present in up to 25 % of patients, including strictures, Schatzki rings, EoE (≈ 9 %), achalasia, or tumors. 3

Surgery is rarely required (1–3 % of cases) but should be considered when:* The foreign body cannot be retrieved endoscopically.
- There is esophageal perforation with extensive pleural or mediastinal contamination.
- The foreign body lies adjacent to vital structures (e.g., aortic arch).
- Complications such as mediastinitis, pleural empyema, fistula, or severe bleeding develop. 4

Do not delay endoscopy for contrast studies, as this wastes time and increases aspiration risk. 1
Do not omit biopsies, because failure to do so misses underlying pathology in up to 25 % of patients. 3
Do not start with retrieval techniques before attempting the push technique, since this raises the risk of complications. 1

In patients receiving anticoagulant therapy or with a known coagulopathy, a pre‑procedure coagulation panel should be obtained to assess bleeding risk before endoscopic removal of the bolus. (Guideline based on Gut 2017) 5

When significant comorbidities such as chronic kidney disease or electrolyte disturbances are present, a basic metabolic panel is advisable to guide peri‑procedural fluid and electrolyte management. (Guideline based on Gut 2017) 5

Routine esophageal biopsies should be taken during the gastroscopy to identify underlying disorders, notably eosinophilic esophagitis, which is found in approximately 25 % of food‑bolus impaction cases. (Guideline based on Gut 2017) 5
Institutions should aim for a biopsy compliance rate exceeding 90 % to ensure adequate diagnostic evaluation. (Guideline based on Gut 2017) 5