9/14/2023 0 Comments Define pathological fatigue![]() ![]() ![]() Thus, fatigue differs from sleepiness, as fatigue is defined by a lack of energy rather than a tendency to fall asleep. ![]() In this state, individuals feel exhausted and unable to perform activities they normally expect of themselves. One of our former studies has shown excessive sleepiness in 46.5% of patients with mild OSA and 58.0% of patients with severe OSA ( Bjorvatn et al., 2015).įatigue is described as “an imbalance between individuals’ energy potential and performance of daily activities” ( Lerdal et al., 2005). A Norwegian study based on ESS reports a 17.7% prevalence of excessive sleepiness ( Pallesen et al., 2007). A large American and a smaller Icelandic population-based study on subjective excessive sleepiness reported a prevalence of 8.7 and 13.1%, respectively ( Bixler et al., 2005 Thorarinsdottir et al., 2019) the latter measured by a score of 11 or higher on the Epworth Sleepiness Scale (ESS). Among well-known risk factors are obesity ( Young et al., 2004 Tuomilehto et al., 2013 Heinzer et al., 2015), male sex ( Young et al., 2004 Sforza et al., 2011 Heinzer et al., 2015), and increasing age ( Young et al., 2004 Edwards et al., 2010 Heinzer et al., 2015).Ī common symptom of OSA is excessive daytime sleepiness, which can be described as the tendency to fall asleep during daytime ( Sateia, 2014). OSA is associated with an increased risk of hypertension, cardiovascular events ( Peker et al., 2002), daytime sleepiness ( Bjorvatn et al., 2015), poor cognitive function ( Naegele et al., 1995), and sudden death during sleep ( Gami et al., 2005). A Norwegian population-based study among subjects aged 30–65 years reported a prevalence of 8% for moderate-to-severe OSA and 16% for mild-to-severe OSA (AHI ≥ 5 Hrubos-Strom et al., 2011). A large Swiss population-based study among subjects aged 40–85 years found that 49% of men and 23% of women have moderate-to-severe (apnea–hypopnea index, AHI ≥ 15) OSA ( Heinzer et al., 2015). OSA is common, but the prevalence varies between different studies. Obstructive sleep apnea (OSA) is a sleep disorder where airways are frequently obstructed during sleep-usually by collapsing upper airways ( Veasey and Rosen, 2019). ![]()
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