Prevalence of sleep apnea and excessive day time sleepiness in patients with end-stage renal disease on dialysis
Department of Medicine, Sleep Disorders Centre, King Saud University for Health Science, King Abdulaziz Medical City, Riyadh, Saudi Arabia
Saudi J Kidney Dis Transpl [serial online] 2012 [cited 2012 Apr 3];23:251-61
Abstract
Sleep apnea (SA) and excessive daytime sleepiness (EDS) are common sleep disorders among patients with end-stage renal disease (ESRD). This cross-sectional study, carried out in two dialysis centers in Saudi Arabia, assessed the prevalence of sleep apnea and sleepiness in Saudi patients with ESRD who are on maintenance dialysis with either peritoneal or hemodialysis.
We used questionnaires to assess the prevalence of SA and EDS. The association between sleep apnea, EDS, and other sleep disorders, the underlying causes of renal failure, and other demo graphic data were also examined. Among 227 enrolled patients, the mean patient age was 55.7 years 17.2 years; 53.7% were male, and 46.3% were female. The overall prevalence of SA as defined by the Berlin questionnaire (BQ) was 37% in males and 34% in females, which was not a statistically significant difference (P = 0.459). Sleep apnea was significantly associated with age, neck size, afternoon and evening hemodialysis shift, obesity, diabetes, and hypertension (P-values, 0.001, 0.029, < 0.0001, < 0.0001, < 0.008, 0.002, and < 0.001, respectively).
Sleep apnea was also significantly associated with other sleep disorders such as restless leg syndrome, insomnia, habitual snoring, and EDS (P-values, < 0.001, < 0.001, < 0.001, and < 0.001, respectively). The prevalence of EDS was 44%, and EDS was significantly more prevalent in patients undergoing peritoneal dialysis (P < 0.001); it was also associated with older age, diabetes mellitus, and other sleep disorders. SA and EDS are common in dialysis patients and are significantly associated with other sleep disorders.
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