Hypertension is a major risk for cardiovascular complications in dialysis p
atients. The pathogenesis of hypertension is multifactorial and is not comp
letely understood, Hypervolemia has always been considered a major pathogen
etic factor. In addition, a disturbed hormone profile with an activated ren
in angiotensin system, increased catecholamine, vasopressin and endothelin,
and perhaps decreased nitrous oxide activity seem to play a role in the hi
gh incidence of hypertension in dialysis patients, The influence of autonom
ic dysfunction on blood pressure control in hemodialysis patients is not cl
ear. The frequent use of erythropoietin during the last decade may have con
tributed to the increased incidence of hypertension in the dialysis populat
ion. Data from the First Report on Dialysis and Transplant in Sicily showed
that hypertension is the cause of endstage renal disease in 8% of dialysis
patients and that the incidence of hypertension, as a cause of end-stage r
enal disease, increased with age.