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Obstructive sleep apnea (OSA) is the most common sleep-related breathing disorder and is characterized by recurrent episodes of complete or partial obstruction of the upper airway leading to reduced or absent breathing during sleep.
More than half of people with obstructive sleep apnea have some degree of positional obstructive sleep apnea, meaning that it gets worse when they sleep on their backs. [69] Sleeping on their sides is an effective and cost-effective treatment for positional obstructive sleep apnea. [69]
OSA: obstructive sleep apnea: OSH: outside hospital Osm: osmolarity: Osteo: osteomyelitis: OT: occupational therapy: OTC: over-the-counter drug: OTD: out the door (discharged) OTPP: oriented to time, place, and person OTTR: Organ Transplant Tracking Record OU: both eyes (from Latin oculi uterque) OV: office visit (see ambulatory care) oz: ounce
The Order of Saint Augustine (Latin: Ordo Fratrum Sancti Augustini), abbreviated OSA, is a mendicant religious order of the Catholic Church.It was founded in 1244 by bringing together several eremitical groups in the Tuscany region who were following the Rule of Saint Augustine, written by Saint Augustine of Hippo in the fifth century.
In one study, mean apnea-hypopnea duration and not AHI was found to be associated with worse hypertension. [6] One long apnea event is clearly worse than the same period broken up into shorter multiple events, with breathing between events, yet it would have the lower AHI.
Systems design is a process of defining and engineering the architecture, methods, and interfaces necessary to accomplish a goal or fulfill a set of requirements. In open systems architecture, the design includes intentional provisions to make it possible to expand or modify the system at a later stage after initial operation.
An Official Secrets Act (OSA) is legislation that provides for the protection of state secrets and official information, mainly related to national security. However, in its unrevised form (based on the UK Official Secrets Act 1911 [ 1 ] ), it can include all information held by government bodies.
The respiratory disturbance index (RDI)—or respiratory distress Index—is a formula used in reporting polysomnography (sleep study) findings. Like the apnea-hypopnea index (AHI), it reports on respiratory distress events during sleep, but unlike the AHI, it also includes respiratory-effort related arousals (RERAs). [1]