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  • Title: Impact of advanced dialysis technology on the prevalence of dialysis-related amyloidosis in long-term maintenance dialysis patients.
    Author: Schiffl H.
    Journal: Hemodial Int; 2014 Jan; 18(1):136-41. PubMed ID: 23718290.
    Abstract:
    Dialysis-related amyloidosis (DRA) is a unique type of amyloidosis (beta-2 microglobulin) predominantly in end-stage renal disease. Its clinical manifestations add to increased morbidity and reduced quality of life. There seems to be a relative risk reduction in DRA manifestations when hemodialysis (HD) patients are treated with advanced HD technology, but changes of the course of DRA are uncertain. The aim of our investigation was to evaluate the prevalence and severity of carpal tunnel syndrome (CTS) in long-term dialysis patients receiving either conventional or high-flux, online-produced ultrapure dialysis fluid. The cross-sectional study included 147 HD patients (at least 10 years). The definitive diagnosis of CTS was made histologically or by the coexistence of CTS with other radiological DRA manifestations (bone cysts, arthropathies). The two HD patient groups did not differ significantly in age at start of HD, gender, major co-morbid diseases, anuria, and dialysis vintage. The conventional HD group had significantly higher circulating beta-2 microglobulin and C-reactive protein (CRP) levels. The prevalence of DRA was 68% for the conventional HD group and 28% for the advanced HD group. Duration of dialysis treatment was the only significant risk factor for the development of clinical DRA manifestations in both study groups, but CTS, bone cysts, or arthropathies occurred significantly earlier in conventional HD patients. The prevalence and severity of DRA have decreased with advances in dialysis technology during the last two decades, although its occurrence is simply delayed.
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