Elsevier

The Lancet

Volume 316, Issue 8207, 13 December 1980, Pages 1271-1275
The Lancet

CLINICAL AND HISTOLOGICAL SKIN CHANGES IN CHRONIC RENAL FAILURE: EVIDENCE FOR A DIALYSIS-RESISTANT, TRANSPLANT- RESPONSIVE MICROANGIOPATHY

https://doi.org/10.1016/S0140-6736(80)92337-5Get rights and content

Abstract

The relation between chronic renal failure and the clinical and histological findings in normal-looking skin was studied in twenty-seven patients with minimum to marked rises of serum creatinine; eleven of these were on maintenance hæmodialysis, and three were successful renal transplant recipients. Clinical findings, including pruritus and xerosis which affected 48% and 60%, respectively, of the patients overall, correlated strongly with severity of renal failure. Histological examination revealed endothelial cell activation and/or necrosis, basement membrane zone thickening, and reduplication of the basal lamina involving both venules and arterioles in all specimens. The microangiopathy was severe in 18 of 24 (75%) of the uræmic specimens, but severity correlated poorly with serum creatinine level, hæmodialysis status, or known duration of renal failure, except that it was less severe in the first 2 years (p<0·02). In contrast, the microangiopathy was very much less severe in the transplant recipients than in hæmodialysed patients (p<0·2) and, in the patient studied both before and after transplantation, changes regressed from severe to moderate within 2 months of transplantation. Other histological findings present in many specimens did not correlate with vessel changes. The findings establish the existence of a potentially reversible microangiopathy in normal-looking skin of patients with chronic renal failure. Further study is needed to determine if it reflects the same pathological process that underlies the development of accelerated atherosclerosis responsible for about half the deaths among patients on maintenance haemodialysis.

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