The upper airway is most collapsible during mid-expiration in obstructive sleep apnoea

Amal M Osman, Jane Butler, Simon Gandevia, Danny Eckert

Research output: Contribution to journalMeeting Abstractpeer-review

Abstract

Upper airway collapsibility is an important contributor to obstructive sleep apnoea (OSA) pathogenesis. Pharyngeal dilator muscle activity varies throughout the respiratory cycle and may contribute to dynamic changes in upper airway collapsibility. We have recently shown that a test of upper airway collapsibility when
awake correlates (r = 0.8, n = 34) with upper airway collapsibility during sleep (Pcrit) in people with OSA. However, whether upper airway collapsibility varies throughout the respiratory cycle is unknown. Thus, this study aimed to quantify differences in pharyngeal muscle activity and upper airway collapsibility during different phases of the respiratory cycle.
Original languageEnglish
Number of pages2
JournalJournal of Sleep Research
Volume27
Issue numberS2
DOIs
Publication statusPublished - Oct 2018
Externally publishedYes
EventSleep DownUnder 2018, 30th ASM of Australasian Sleep Association and the Australasian Sleep Technologists Association - Brisbane, Australia
Duration: 17 Oct 201820 Oct 2018

Keywords

  • Upper airway collapsibility
  • Obstructive sleep apnea pathogenesis
  • Pharyngeal dilator muscle
  • genioglossus reflex

Fingerprint

Dive into the research topics of 'The upper airway is most collapsible during mid-expiration in obstructive sleep apnoea'. Together they form a unique fingerprint.

Cite this