Sleep disturbances in fibromyalgia syndrome: the role of clinical and polysomnographic variables explaining poor sleep quality in patients

The association between pain and sleep in fibromyalgia

“…In addition, the research designs used in the selected studies varied ( Table 1 ). The studies were conducted in the United States,20-29 Spain,30-32 the United Kingdom,33,34 and Turkey 35…”

“…According to the EPHPP assessment tool, one study demonstrated high,23 11 studies demonstrated medium20,21,24,27-32,34,35 and 4 studies demontrated as low quality 25-27,33. ( Table 1 ).…”

Sleep and fibromyalgia: it is time to think big

“…As noted by Diaz-Piedra and colleagues [1], there is a robust literature documenting the presence of sleep problems among patients with FM. Almost all women with FM selfreport poor sleep quality and objective measures of sleep have frequently documented evidence of disordered sleep.…”

“…As noted by Diaz-Piedra et al in a comprehensive review, there are substantial differences among studies for a number of important parameters [3]. The studies reported in Table 1 of their article in this issue of the journal reflect this heterogeneity [1]. For instance, several studies excluded patients based on bed-time and/or time in bed [4][5][6].…”

“…The patients studied by Diaz-Piedra et al and those in the studies reviewed by Diaz-Piedra et al were selected primarily for the presence of FM, and excluded if there were indications of a primary sleep disorder [1,3]. However, there exists another body of small studies that have assessed sleep in FM patients referred to sleep clinics [10,11].…”