Synchronous airway lesions in infancy

Area of Science:

• Pediatrics
• Otolaryngology
• Pulmonology

Background:

• Stridor is a common respiratory symptom in infants.
• Laryngoscopy is the primary diagnostic tool for laryngeal lesions causing stridor.
• The need for further investigation of the lower airway after laryngeal diagnosis is debated.

Purpose of the Study:

• To determine the incidence of multiple synchronous airway lesions in infants presenting with stridor or airway obstruction.
• To assess the diagnostic yield of combined laryngoscopy and bronchoscopy compared to laryngoscopy alone.

Main Methods:

• A retrospective study of 103 infants undergoing diagnostic laryngoscopy and bronchoscopy.
• Data collected over a 2-year period at Children's Hospital of Pittsburgh.
• Analysis of concurrent upper and lower airway diagnoses.

Main Results:

• 18.5% of infants (18 out of 103) had two or more synchronous airway lesions.
• Laryngoscopy alone may miss significant lower airway abnormalities.
• Combined procedures identified a substantial rate of concurrent pathology.

Conclusions:

• Comprehensive evaluation of the entire respiratory tract is crucial for infants with stridor.
• Bronchoscopy is often necessary to rule out concurrent lesions not visible by laryngoscopy.
• Failure to investigate the entire airway can lead to missed diagnoses in pediatric airway obstruction.