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Perit Dial Int ; 32(6): 645-51, 2012.
Article in English | MEDLINE | ID: mdl-22855887

ABSTRACT

BACKGROUND: Widespread Al toxicity is unusual today. In 2005, Canadian peritoneal dialysis (PD) centers reported widespread hyperaluminemia in patients using dialysates from one specific manufacturer. Our objectives were to evaluate risk factors related to Al accumulation and to assess its clinical consequences in patients from 2 centers. METHODS: A retrospective closed cohort study was conducted in patients treated with PD in May 2005. A multivariate linear regression model was constructed to identify variables associated with a higher serum Al level in the exposed group at the moment of solution change. Using appropriate statistical methods, anemia and bone metabolism parameters were compared between the exposed and unexposed groups. Time to first peritonitis was estimated by the Kaplan-Meier method. RESULTS: The study cohort included 87 Al-exposed patients and 95 unexposed patients. In the exposed group, serum Al at the moment of solution change was influenced by the length of exposure to Al-containing dialysates and by PD creatinine clearance; serum Al was inversely correlated with renal creatinine clearance. No consequences of Al accumulation were observed. No difference was observed in the time to first peritonitis between patients who switched manufacturers and those who remained with the original manufacturer. CONCLUSIONS: Our results suggest that hyperaluminemia is directly related to the length and extent of exposure to Al-containing dialysates; residual renal function is protective against Al accumulation. Because the problem was detected rapidly, no clinical consequences of hyperaluminemia were observed in the study cohort.


Subject(s)
Aluminum/blood , Kidney Failure, Chronic/therapy , Peritoneal Dialysis , Aged , Aluminum/toxicity , Cohort Studies , Dialysis Solutions/chemistry , Female , Humans , Linear Models , Male , Middle Aged , Peritonitis/epidemiology , Peritonitis/physiopathology , Retrospective Studies , Risk Factors
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