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Phenotypes of Obstructive Sleep Apnea.
Kevin Coughlin1, George M Davies2, Marion Boyd Gillespie3
1Department of Otolaryngology-Head and Neck Surgery, University of Tennessee Health Science Center, 910 Madison Avenue, Suite 410, Memphis, TN 38163, USA.
Otolaryngologic Clinics of North America
|April 27, 2020
Summary
Obstructive sleep apnea (OSA) involves airway obstruction, affecting multiple body systems. Understanding neuromuscular tone and critical closing pressure aids in treating this common sleep disorder.
Area of Science:
- Sleep Medicine
- Otolaryngology
- Respiratory Medicine
Background:
- Obstructive sleep apnea (OSA) is a significant multisystem disorder linked to higher morbidity and mortality.
- Anatomical obstruction commonly occurs in the nasal, palatal, and hypopharyngeal regions of the airway.
Purpose of the Study:
- To explore the relationship between reduced neuromuscular tone and the rising prevalence of OSA in normal-weight adults with aging.
- To define critical closing pressure in the context of pharyngeal soft tissue collapse and reduced airway pressure.
Main Methods:
- Literature review on OSA pathophysiology and contributing factors.
- Analysis of factors influencing airway patency, including neuromuscular tone and respiratory biochemistry homeostasis.
Main Results:
- A correlation exists between diminished neuromuscular tone and increased OSA incidence in aging, normal-weight individuals.
- Critical closing pressure is a key indicator of pharyngeal airway stability.
Conclusions:
- Age-related decline in neuromuscular tone contributes to OSA development.
- Maintaining respiratory biochemistry homeostasis is crucial for airway patency in OSA patients.
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