Concepedia

Effect of Body Posture on Pharyngeal Shape and Size in Adults With and Without Obstructive Sleep Apnea

Jennifer H. Walsh, Matthew S. Leigh, Alexandre Paduch, Kathleen J. Maddison, Julian J. Armstrong, David D. Sampson, David R. Hillman, Peter R. Eastwood

SLEEP · 2008 · 99 citations · 33 references

DOIFull text

Open access

Abstract

The upper airway changes from a more transversely oriented elliptical shape when supine to a more circular shape when in the lateral recumbent posture but without altering CSA. Increased circularity decreases propensity to tube collapse and may account for the postural dependency of OSA.

References

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SLEEP · 1999 · 5.1K citations

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