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Obstructive sleep apnea: is there a difference between vertical and horizontal laryngectomy?
Raquel Chartuni Pereira Teixeira1, Michel Burihan Cahali1
1Hospital do Servidor Público Estadual de São Paulo.
Brazilian Journal of Otorhinolaryngology
|January 30, 2014
Summary
Obstructive sleep apnea (OSA) is common after partial laryngectomy, particularly vertical procedures. Spirometry can help detect airway obstruction in these patients.
Area of Science:
- Otolaryngology
- Sleep Medicine
- Respiratory Medicine
Background:
- Partial laryngectomy, a treatment for laryngeal cancer, can lead to upper airway structural changes.
- These alterations may result in obstructive sleep apnea (OSA).
Purpose of the Study:
- To compare OSA prevalence and severity between horizontal and vertical partial laryngectomy.
- To evaluate spirometry's role in assessing these patients.
Main Methods:
- Cross-sectional clinical study involving patients who underwent partial laryngectomy.
- Assessment included interviews, upper airway endoscopy, polysomnography, and spirometry.
Main Results:
- 92.3% of evaluated patients had OSA.
- Vertical laryngectomy patients showed significantly higher apnea-hypopnea indices (mean=36.9) vs. horizontal (mean=11.2).
- Spirometry detected extrathoracic upper airway obstruction in all OSA patients.
Conclusions:
- High incidence of OSA observed in the partial laryngectomy population.
- Vertical partial laryngectomy is associated with more severe OSA compared to horizontal.
- Spirometry appears valuable for identifying suspected OSA by indicating extrathoracic airway obstruction.
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