Expiratory Changes in Pressure: Flow Ratio During Sleep in Patients with Sleep-disordered Breathing | Zendy

Renaud Tamisier | Zendy; JeanLouis Pépin | Zendy; Bernard Wuyam | Zendy; Chrystelle Deschaux | Zendy; Patrick Lévy | Zendy

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Expiratory Changes in Pressure: Flow Ratio During Sleep in Patients with Sleep-disordered Breathing

Author(s) -

Renaud Tamisier,

JeanLouis Pépin,

Bernard Wuyam,

Chrystelle Deschaux,

Patrick Lévy

Publication year - 2004

Publication title -

sleep

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.222

H-Index - 207

eISSN - 1550-9109

pISSN - 0161-8105

DOI - 10.1093/sleep/27.2.240

Subject(s) - expiration , obstructive sleep apnea , medicine , respiration , airway resistance , airway , sleep (system call) , anesthesia , apnea , sleep apnea , breathing , wakefulness , ventilation (architecture) , sleep and breathing , respiratory system , cardiology , anatomy , electroencephalography , mechanical engineering , psychiatry , computer science , engineering , operating system

The size of the upper airway is smallest during sleep, at the end of expiration. This may favor upper-airway collapse in patients with obstructive sleep apnea. In the respiratory cycles preceding obstructive events during sleep, our hypothesis is that upper-airway resistance (UAR) increased earlier during expiration prior to changes occurring during inspiration.

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