hemoperfusion(HP)
DeviceThese patients were computer-matched into two groups, involving 100 patients with absolute HD vs. 100 cases with HD+HP.HP was performed 1-2 times/per 2 weeks, and each session lasted for two hours.Self-reported sleep disturbance was evaluated before and after observational time (two-year period), which lasted at least 7 hours based on the recommendations presented by National Institute of Health (NIH). Sleep efficiency (%) was calculated as the ratio of sleep duration to total time in bed, and was multiplied by 100.