الفهرس 
Physiology of SleepOnly 14 pages are availabe for public view
 |  | from | 226 |  |  |
| | | from | 226 | | |
Abstract
Sleep quality is one of the major aspects that affect a patient quality of life, and poor sleep quality is common in CKD patients whether on conservative treatment or on regular dialysis.
Sleep disorders are very important risk factor in resistant hypertension, it should be treated seriously in these patients.
In our study we aimed at studying the frequency of sleep disorders in Egyptian patients with chronic renal failure and resistant hypertension, and also to assess its possible related factors and consequences.
Our study was conducted on 3 groups of patients; the first group included 20 patients with chronic renal failure on regular hemodialysis and resistant hypertension, and the second group included 20 patients with chronic renal failure on regular hemodialysis and normal blood pressure, the third group included 20 patients with resistant hypertension and normal kidney function.
Studying the first group aimed at assessing the frequency of poor sleep quality in patients with renal failure and resistant hypertension and their possible correlation to any of the parameters studied, the second group study aimed at assessing the effect of renal failure itself on sleep quality by following up all the parameters versus the change of sleep quality. While the third group study aimed at assessing the relation between resistant hypertension and sleep disorders and the effect of each one of them on the other.
All candidates were subjected to full history taking including the duration of renal failure, dialysis and clinical examination including assessment of body mass index (BMI), and assessment of sleep quality using a standardized sleep quality questionnaire, The Pittsburgh sleep quality index (PSQI).
Assessment of sleep quality using the PSQI gave us an impression about the frequency of poor sleepers among the sample patients, and we found only 30 poor sleeper patients out of 60 patients.
Poor sleeper patients were further assessed by Polysomnography to diagnose the specific type of sleep disorder, and we found that the patients were manifesting variable grades of obstructive type of sleep apnea.
The latter finding was strongly associated with uncontrolled systolic and diastolic blood pressure and which agrees with what many studies have found about the strong relation between sleep apnea and many cardiovascular morbidities including hypertension, another strong association was found between chronic renal failure and sleep disorders.
We found that, restless leg syndrome is the predisposing factor of the poor sleep quality, and this agrees with what was found in many studies about the high prevalence of this syndrome among CKD population.