Related Experiment Videos
Congenital absence of the epiglottis and its potential role in obstructive sleep apnea
B G Reyes1, J E Arnold, L J Brooks
1Department of Pediatrics, Case Western Reserve University, Cleveland, OH 44106.
Insights
Congenital absence of the epiglottis can lead to obstructive sleep apnea (OSA) in children. Despite the absence of this structure, swallowing and speech functions may be compensated by other mechanisms.
Area of Science:
- Pediatric Otolaryngology
- Sleep Medicine
- Anatomy
Background:
- The epiglottis is a flap of cartilage at the base of the tongue, crucial for sealing off the windpipe during swallowing.
- Congenital absence of the epiglottis is a rare condition with limited understanding of its functional impact.
Observation:
- A 3-month-old infant presented with inspiratory stridor, a high-pitched breathing sound.
- The infant was diagnosed with congenital epiglottic absence.
- Over 8 years, the child developed severe obstructive sleep apnea (OSA), confirmed by polysomnography.
Findings:
- Despite the absence of the epiglottis, the patient exhibited no difficulties with swallowing or phonation.
- Clinical assessments and barium swallow studies confirmed normal swallowing and speech function.
- The findings suggest the epiglottis plays a role in upper airway stability.
Implications:
- The epiglottis may be vital for maintaining upper airway patency, particularly during sleep.
- Alternative mechanisms can compensate for the absence of the epiglottis in swallowing and phonation.
- This case highlights the potential for significant upper airway compromise without the epiglottis, emphasizing the need for monitoring and further research.
Abstract:
A 3 month old girl with congenital absence of the epiglottis presents with inspiratory stridor. Over the next 8 years frank obstructive sleep apnea (OSA) develops, confirmed by polysomnography. She has no difficulty in swallowing or phonation as assessed clinically and with barium swallow. This suggests that the epiglottis may help stabilize the upper airway, and any role in swallowing or phonation may, in its absence, be compensated by other mechanisms.