After polysomnography (PSG) is complet¬ed, the recording is analyzed. Scoring an overnight sleep study requires mastering of the scoring rules and good experience. In this chapter, we cover the scoring of sleep stages; different respiratory events such as apnea, hypopnea and hypoventila¬tion; and periodic limb movements...

Abstract: Polysomnography (PSG) is the gold standard diagnostic test for sleep disorders. During PSG, several physiological parameters are monitored while the patient is asleep. These parameters...

Abstract: Polysomnography (PSG) is the gold standard diagnostic test for sleep disorders. During PSG, several physiological parameters are monitored while the patient is asleep. These parameters...

“Sleep-related breathing disorders” is a term used to describe a wide spectrum of abnormalities of respiration during sleep, including obstructive sleep apnea (OSA) disorders, central sleep apnea disorders (CSAS) and sleep-related hy¬poventilation disorders...

“Sleep-related breathing disorders” is a term used to describe a wide spectrum of abnormalities of respiration during sleep, including obstructive sleep apnea (OSA) disorders, central sleep apnea disorders (CSAS) and sleep-related...

Abstract: A recent paper appeared in the New England Journal of Medicine about the role of continuous positive airway pressure (CPAP) in the prevention of cardiovascular events in obstructive sleep apnea (OSA). The results of this paper, finding no protective effect of CPAP, came as...

Aims: We hypothesized that if we control for food composition, caloric intake, light exposure, sleep schedule and exercise, intermittent fasting would not influence the circadian pattern of melatonin. Therefore, we designed this study to assess the effect of intermittent fasting on the circadian pattern of melatonin...

Objectives: We conducted this study to assess primary care physicians’ (PCPs) knowledge and attitudes toward sleep disorders. Methods: In this cross-sectional quantitative study, we surveyed 88 primary care centers under the Ministry of Health during 2015 in Riyadh, Saudi Arabia, using...

Objectives: Motor vehicle collisions (MVCs) are a significant health burden in Saudi Arabia. The literature has consistently indicated that chronic medical conditions, such as diabetes, heart disease, stroke, obstructive sleep apnea, and neurodevelopmental disorders, increase the risk of MVCs. Therefore, assessment of...

Background: One important cardiovascular morbidity that is associated with obesity hypoventilation syndrome (OHS) is the development of pulmonary hypertension (PH). However, few studies have...

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