Sleep apnea is a sleep disorder characterized by pauses in breathing or instances of shallow or infrequent breathing during sleep. Each pause in breathing, called an apnea, can last for several seconds to several minutes, and may occur, by definition, at least 5 times in an hour. Similarly, each abnormally shallow breathing event is called a hypopnea.
People have issues with excessive daytime sleepiness (EDS) and impaired alertness. In other words, common effects of sleep apnea include daytime fatigue, a slower reaction time, and vision problems.SA may increase risk for driving accidents and work-related accidents. If SA is not treated, one has an increased risk of other health problems such as diabetes.
One-fifth of all patients showed a concentric collapse. Gender and age did not predict the presence of concentric collapse, but higher body mass and�apnea�hypopnea index values were predictive. The most commonly used body mass index values for upper airway stimulation indications demonstrated acceptable specificity (BMI 32�kg/m2�0.71, 95�% confidence interval?=?0.57, 0.82; e.g., 35�kg/m2�0.81, 95�% confidence interval?=?0.69, 0.90).