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publicado em 16/02/2011 às 02h00:00
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Poor quality of sleep increases pain and depression in patients with rheumatoid arthritis

Treating sleep problem through behavioral or pharmacological interventions have critical impact on patient health

 
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Poor sleep quality is associated with higher levels of depressive symptoms, greater severity of pain, increased fatigue and increased functional disability in patients with rheumatoid arthritis (RA). It suggests that the study conducted at the University of Pittsburgh School of Nursing, USA.

The study also shows that try to solve the problem through behavioral or pharmacological interventions may have a critical impact on the health and lives of patients with RA.

The researchers assessed the relationship between sleep quality and functional disability in 162 RA patients. The sample had a mean age of 58.5 years, and 76% were female. All patients had been diagnosed with RA at least two years, on average, patients had RA for 14 years.

Participants completed three questionnaires that provided information on their quality of sleep, depression, fatigue, functional disability and pain intensity. Patients also provided demographic information and medical history.

The results show that sleep quality has an indirect effect on functional disability after adjustment for age, sex and number of comorbidities.

According to the results, 61% had poor sleep quality and 33% reported having pain that disturbs sleep three or more times per week.

"The main finding of our study is that poor sleep quality is associated with increased disability among RA patients and this relationship can be explained by the intensity of pain and fatigue," said study author, Faith S. Luyster. "These results underscore the importance of addressing the problems of sleep in patients with RA. By treating sleep problems pharmacologically or behaviorally, symptoms and activity limitations associated with RA may be reduced."

The study, which found that poor sleep quality is associated with greater pain severity, is consistent with recent evidence suggesting that sleep disruption may increase pain in patients with RA and in healthy adults.

"Do not sleep well at night may contribute to increased sensitivity to pain and fatigue during the day, which may limit a patient's ability to engage in activities of daily living activities without limitations," said Luyster.

Source: Isaude.net
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