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Untreated sleep apnea can lead to serious health conditions. Moderate to severe sleep apnea can increase your risk of: High blood pressure. Heart failure. Cardiovascular disease. Stroke. Fatty ...
Obstructive sleep apnea is an obstruction in your upper airway that stops normal breathing for a brief time while you're sleeping. In some people, this can occur hundreds of times each night.
Two levels of severity are distinguished, the first one is determined by a polysomnography or home sleep apnea test demonstrating 5 or more predominantly obstructive respiratory events per hour of sleep and the higher levels are determined by 15 or more events.
Home Sleep Tests (HST) or Home Sleep Apnea Tests (HSAT) are types of sleep studies that can be performed in a patient's home to identify obstructive sleep apnea. HSTs are performed at home in the patient’s usual sleep environment and thus are more representative of their natural sleep than staying overnight at a lab, where patients often ...
Sleep apnea is measured by the apnea-hypopnea index (AHI). An AHI is determined with a sleep study. AHI values for adults are categorized as: [2] [3] Normal: AHI<5; Mild sleep apnea: 5≤AHI<15; Moderate sleep apnea: 15≤AHI<30; Severe sleep apnea: AHI≥30; An episode is when a person hesitates to breathe or stops their breathing altogether.
High-resolution pulse oximetry (HRPO) has been developed for in-home sleep apnea screening and testing in patients for whom it is impractical to perform polysomnography. [77] [78] It stores and records both pulse rate and SpO 2 in 1 second intervals and has been shown in one study to help to detect sleep disordered breathing in surgical ...
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