Differential Diagnosis for a Baby Who Choked and Is Now Asymptomatic

Immediate Diagnostic Considerations

• The American Academy of Pediatrics recommends that Brief Resolved Unexplained Event (BRUE) is diagnosed only after excluding all other causes through thorough history and physical examination in an infant <1 year old 1
• The American Academy of Pediatrics states that BRUE is characterized by an event that must have been brief (<1 minute, typically 20-30 seconds), completely resolved, and included at least one of: cyanosis/pallor, absent/decreased/irregular breathing, marked tone change, or altered responsiveness 1
• The American Academy of Pediatrics notes that events with choking after vomiting or feeding suggest GER and are NOT classified as BRUE 1
• The presence of fever, respiratory symptoms, or nasal congestion would preclude BRUE diagnosis, as stated by the American Academy of Pediatrics 1
• A history of choking is pathognomonic for foreign body aspiration until proven otherwise, even if the child appears asymptomatic now, according to the American College of Emergency Physicians 2
• The aspiration event may have been unwitnessed, so absence of clear history does not exclude it, as noted by the American College of Emergency Physicians 2
• A normal chest X-ray does NOT exclude foreign body aspiration—clinical history takes precedence, as stated by the American College of Emergency Physicians 2
• If the child was witnessed choking while having small particles in their mouth, prompt evaluation is mandatory regardless of current symptom status, according to the American College of Emergency Physicians 2
• The American Heart Association recommends that never perform blind finger sweeps as they may push foreign bodies further into the airway 3, 4, 5, 2
• Events characterized as choking after vomiting strongly indicate GER as the etiology, as stated by the American Academy of Pediatrics 1
• GER can present with respiratory symptoms including wheezing and apparent choking episodes, according to the American Thoracic Society 6
• Swallowing dysfunction with aspiration occurs in approximately 12-13% of infants with respiratory symptoms, as noted by the American Thoracic Society 6
• Among infants with swallowing dysfunction, 70% have tracheal aspiration and 30% have laryngeal penetration, according to the American Thoracic Society 6
• Video-fluoroscopic swallowing studies identify aspiration in 12-13% of infants <1 year with respiratory symptoms or vomiting, as stated by the American Thoracic Society 6
• Coordination of swallowing improves with age, and dysfunction often resolves within 3-9 months with appropriate management, according to the American Thoracic Society 6

Critical Historical Features to Elicit

• The American Academy of Pediatrics recommends assessing for tonic eye deviation, nystagmus, tonic-clonic movements, or infantile spasms during the event to evaluate for seizure activity 1, 7
• The American Academy of Pediatrics notes that post-ictal phase may have been mistaken for resolution of choking episode 1, 7
• Obtain family history of sudden unexplained death in first- or second-degree relatives before age 35, particularly in infancy, to evaluate for cardiac arrhythmia/Long QT syndrome, as recommended by the American Academy of Pediatrics 1, 7
• Ask about family history of long QT syndrome or arrhythmias, as stated by the American Academy of Pediatrics 1, 7

Immediate Management Approach

• The American College of Emergency Physicians recommends that if foreign body aspiration is suspected based on witnessed choking with small objects, proceed directly to imaging and possible bronchoscopy 2
• For ingested foreign bodies, obtain abdominal X-ray as first-line imaging, as recommended by the American College of Emergency Physicians 5
• Watch for red flags requiring immediate intervention: persistent vomiting, severe abdominal pain, respiratory distress, signs of perforation, or hematemesis, as stated by the American College of Emergency Physicians 5
• If BRUE is suspected, stratify risk and determine need for admission versus outpatient monitoring, according to the American Academy of Pediatrics 1

Common Pitfalls to Avoid

• The American College of Emergency Physicians notes that do not be falsely reassured by normal radiographs when clinical history suggests foreign body aspiration 2
• The American Academy of Pediatrics recommends that do not classify an event as BRUE if there was vomiting or feeding-related choking—this suggests GER 1
• The American Heart Association states that do not perform blind finger sweeps 3, 4, 5, 2
• The American College of Emergency Physicians recommends that do not use barium contrast studies for suspected foreign bodies—they can coat the object and increase aspiration risk 5