The Effect of Body Position on Physiological Factors that Contribute to Obstructive Sleep Apnea | Zendy

Simon A. Joosten | Zendy; Bradley A. Edwards | Zendy; Andrew Wellman | Zendy; Anthony Turton | Zendy; Elizabeth M. Skuza | Zendy; Philip J. Berger | Zendy; Garun S. Hamilton | Zendy

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The Effect of Body Position on Physiological Factors that Contribute to Obstructive Sleep Apnea

Author(s) -

Simon A. Joosten,

Bradley A. Edwards,

Andrew Wellman,

Anthony Turton,

Elizabeth M. Skuza,

Philip J. Berger,

Garun S. Hamilton

Publication year - 2015

Publication title -

sleep

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.222

H-Index - 207

eISSN - 1550-9109

pISSN - 0161-8105

DOI - 10.5665/sleep.4992

Subject(s) - supine position , medicine , dilator , anesthesia , continuous positive airway pressure , ventilation (architecture) , airway , functional residual capacity , obstructive sleep apnea , critical closing pressure , tidal volume , lung volumes , apnea , respiratory system , lung , hemodynamics , mechanical engineering , engineering

Obstructive sleep apnea (OSA) resolves in lateral sleep in 20% of patients. However, the effect of lateral positioning on factors contributing to OSA has not been studied. We aimed to measure the effect of lateral positioning on the key pathophysiological contributors to OSA including lung volume, passive airway anatomy/collapsibility, the ability of the airway to stiffen and dilate, ventilatory control instability (loop gain), and arousal threshold.

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