Sleep quality of patients in End Stage Renal Disease before and after starting chronic hemodialysis treatment: a longitudinal study


Introduction: Sleep disorders are very common in patients with chronic kidney disease, with a prevalence of poor sleep quality of around 40%.
Objectives: The purpose of the study is to compare the sleep quality of ESRD patients before hemodialysis (Pre-HD), three months (Post-HD 1) and six months after the start of treatment (Post-HD 2) through the use of the Pittsburgh Sleep Quality Index (PSQI).
Methods: Patients in ESRD were recruited from the U.O.C. of Nephrology and Dialysis of the Maggiore Hospital in Modica and biographical and anamnestic data were collected. The PSQI was administered in-person at the Pre-HD stage and by telephone re-test at the three- and six-month follow-up.
Results: A total of 71 patients (males=62%, age 68 ± 16) were included. At Pre-HD assessment 93% reported poor sleep quality, the percentage increased to 98% during Post-HD 1 and it partially improved during Post-HD 2 with a prevalence of 95%. Analysis of variance (ANOVA) by repeated measures showed a difference in sleep quality between the three time points.
Conclusions: Sleep quality undergoes important changes during the transition from conservative to hemodialysis patient, highlighting a critical period related to the first three months of treatment. More attention to this phase may improve the patient’s quality of life and reduce the associated risk of mortality.

Keywords: sleep, quality, hemodialysis, life, dialysis

Sorry, this entry is only available in Italian.


Il sonno è un processo fisiologico universale e complesso, essenziale per uno stato di salute soddisfacente ed una buona qualità di vita [1]. Tuttavia, la riduzione delle ore di sonno e di conseguenza una scarsa qualità del sonno stanno diventando sempre più comuni nella popolazione generale [2]. I disturbi del sonno sono problemi frequenti tra i pazienti con malattia renale cronica (CKD) e sono associati al rischio di sviluppare patologie cardiovascolari, diabete, disfunzioni cognitive, eventi ictali e disturbi neuropsichiatrici oltre ad un più alto rischio di mortalità [27]. 

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