Hypertension in end-stage renal disease.

Patients with moderate to severe renal disease have a very high incidence of hypertension. In end-stage renal disease (ESRD) this is true regardless of the nature of the underlying renal disease. Nevertheless, patients with glomerular diseases and autosomal dominant polycystic kidney disease are particularly vulnerable. Evidence is presented that ESRD hypertension is the result of extracellular volume expansion, increased or inappropriate response of the renin-angiotensin system and overactivity of the sympathetic system. In addition, the role of endothelin-1, nitric oxide and other vasodilators, and abnormal ion channels in generating high blood pressure, is considered.