* Peripheral Arterial Disease (PAD) is a common condition in patients with End-Stage Renal Failure (ESRF) undergoing dialysis. * Late diagnosis of PAD and hypoperfusion induced by dialysis sessions explain the high morbidity and mortality associated with this condition in hemodialysis patients compared to the general population. * The main objective of this study is to evaluate whether a dialysis modality (conventional 4-hour sessions 3 times per week or daily 2-hour sessions 6 times per week) is more effective in preventing the progression of critical limb ischemia during dialysis and thus preventing serious complications of PAD. This study will help define a population of chronic hemodialysis patients at risk of developing critical limb ischemia during dialysis sessions. This will allow us to offer them the dialysis modality that best maintains distal perfusion of the lower limbs and may prevent the onset of trophic disorders.
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Evaluate the dialysis modality in patients undergoing chronic hemodialysis
Timeframe: 2 weeks