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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 ]
Excessive daytime sleepiness (EDS) is characterized by persistent sleepiness and often a general lack of energy, ...
Daytime sleepiness appears most commonly during situations where little interaction is needed. [5] Since hypersomnia impairs patients' attention levels (wakefulness), quality of life may be impacted as well. [6] This is especially true for people whose jobs request high levels of attention, such as in the healthcare field. [6]
Idiopathic hypersomnia (IH) is a neurological disorder which is characterized primarily by excessive sleep and excessive daytime sleepiness (EDS). [1] Idiopathic hypersomnia was first described by Bedrich Roth in 1976, and it can be divided into two forms: polysymptomatic and monosymptomatic.
While the AHI measures the mean number of apneas and hypopneas per hour of sleep, the RDI adds to this measure the respiratory effort-related arousals (RERAs). [38] The OSA syndrome is thus diagnosed if the AHI is > 5 episodes per hour and results in daytime sleepiness and fatigue or when the RDI is ≥ 15 independently of the symptoms. [39]
“RSV is a ubiquitous respiratory virus that is comparable in severity to influenza in older adults,” says Amesh A. Adalja, M.D., a senior scholar at the Johns Hopkins Center for Health Security.
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