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RISK FACTORS FOR HYPERALUMINEMIA IN CONTINUOUS AMBULATORY PERITONEAL DIAL YSIS

From the Division ofNephrology, Department of Medicine, University of Missouri, MA436 Health Sciences Center, Columbia, Mo 652] 2, USA.

The authors evaluated risk factors for hyperaluminemia and aluminum toxicity in 51 CAPD patients, who received aluminum-containing phosphate binders. Serum aluminum correlated with total intake of elemental aluminum after starting CAPD (p = 0.001), with aluminum intake in the previous six months (p = 0.001), with duration of CAPD (p = 0.003), and with serum phosphate (p = 0.05). Eight patients had elevated serum aluminum, but only one had clincial evidence of aluminum toxicity (he had been on hemodialysis with untreated water until he was changed to CAPD 30 months before the study). Although the incidence of clinical aluminum toxicity appears to be low, we conclude that the aluminum intake from aluminum-containing phosphate binders is a major factor in the evolution of hyperaluminemia and, potentially, aluminum toxicity in CAPD patients. We believe that alternative effective, phosphate binders are much needed.

KEY WORDS: Risk factors; Serum aluminum; Aluminum toxicity; Aluminum containing phosphate binders.

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