Effect of Intermittent Hemodialysis on Sleep Apnea Syndrome in End Stage

Status Completed

Clinical Trial Summary

The purpose of this study is to investigate the effect of decreasing fluid overload by hemodialysis on the severity of obstructive sleep apnea, in patients with end stage chronic kidney disease on intermittent hemodialysis. It aims further to investigate the relationship between overhydration, nocturnal rostral fluid shift and the severity of sleep apnea.

Clinical Trial Description

Obstructive sleep disordered breathing is more prevalent in end stage kidney disease patients than in the general population, and may participate to the increased cardiovascular mortality observed in this group of patients. Despite a significant increase in knowledge about the harmful effects of obstructive sleep apnea, the pathophysiological mechanisms are poorly understood. Recent observations suggest a causative relationship between overnight fluid displacement from the legs to the neck soft and the severity of obstructive sleep apnea. This mechanism was demonstrated in otherwise healthy subjects, in heart failure patients, and in patients with venous insufficiency. We thus suspect that this pathophysiologic mechanism could explain the increased prevalence of obstructive sleep apnea in patients with hypervolemia, including chronic renal failure.

The purpose of this trial is to investigate the hypothesis that nocturnal rostral fluid ship is linked to overhydration and participates significantly to the severity of obstructive sleep apnea in patients on hemodialysis. The correction of overhydration by hemodialysis should therefore reduce the amount of nocturnally displaced water and consequently lower the severity of obstructive sleep apnea.

The severity of obstructive sleep apnea is measured by two consecutive attended polysomnographies, performed before and after an ambulatory hemodialysis session with fluid removal, whereas overhydration and leg fluid are evaluated by bioimpedance, performed at the beginning and at the end of each polysomnography. The sequence of the two polysomnographies with respect to hemodialysis is randomized, to minimize the first-night effect. ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01860209
Study type	Interventional
Source	Centre Hospitalier Universitaire Vaudois
Contact
Status	Completed
Phase	N/A
Start date	March 2013
Completion date	October 2013

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Effect of Intermittent Hemodialysis on Sleep Apnea Syndrome in End Stage Renal Disease Patients — SASinHD

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms