Laryngomalacia and its treatment

Area of Science:

• Pediatric Otolaryngology
• Pediatric Pulmonology
• Neonatal Airway Disorders

Background:

• Laryngomalacia is a common cause of noisy breathing in infants.
• The role of routine invasive airway evaluation in laryngomalacia management is debated.
• Predicting resolution and surgical outcomes requires understanding disease subtypes and comorbidities.

Purpose of the Study:

• To evaluate airway outcomes in infants with laryngomalacia not undergoing routine direct laryngoscopy (DL) and bronchoscopy (B).
• To determine the typical age of laryngomalacia resolution.
• To assess the success of supraglottoplasty based on laryngomalacia type and co-occurring conditions.

Main Methods:

• Retrospective chart review of infants diagnosed with laryngomalacia via flexible fiberoptic laryngoscopy (FFL).
• Classification of laryngomalacia into types 1-3 based on obstruction site.
• Log rank test used to compare resolution age and outcomes between laryngomalacia types and disease severity.

Main Results:

• Laryngomalacia types included type 1 (57%), type 2 (15%), type 3 (13%), and combined (15%).
• Twenty percent of infants had severe neurological compromise and/or multiple congenital anomalies.
• Median time to stridor resolution was similar for isolated vs. complicated laryngomalacia (36 vs. 36-72 weeks).
• Second airway lesions were identified in 11 infants (19%).
• Supraglottoplasty success did not correlate with laryngomalacia type or comorbidities.
• Complications were not observed in infants who did not undergo DL and B.

Conclusions:

• Routine DL and B are not indicated for laryngomalacia evaluation; procedures should be reserved for suspected concomitant airway lesions.
• Laryngomalacia generally resolves within the first year, even with significant comorbidities.
• A proposed classification scheme aids in correlating obstruction site with surgical intervention.
• Surgical management is required for approximately 15-20% of affected infants.