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BACKGROUND: As abnormally high serum D-lactate levels may cause neurological impairment, we determined whether patients undergoing continuous ambulatory peritoneal dialysis (CAPD) with lactate-containing fluids have increased serum D-lactate concentrations. METHODS: D- and L-lactate concentrations were determined in peritoneal dialysis fluids and in serum from control subjects (n = 10), haemodialysis patients (n = 10), and CAPD patients (n = 30) before and after 1 h of dialysis. RESULTS: We found the median D-lactate concentration in Dianeal CAPD fluid to be 26 mM (range 19-27), whereas it was less than 0.5 mM in DPCA2 fluid. Control, haemodialysis, and CAPD (DPCA2) patient median serum D-lactate concentrations were below 0.07 mM. However, CAPD (Dianeal) patient serum D-lactate concentrations were 4-fold higher than controls (P < 0.0001), at 0.28 mM, an hour after instillation of D-lactate-containing fluid. Three patients, whose serum D-lactate averaged 0.59 mM, were found to have D-lactate concentrations at 0.22 mM after overnight cessation of dialysis. CONCLUSION: We conclude that CAPD with D-lactate-containing fluids raises serum D-lactate to abnormal levels.

Original publication




Journal article


Nephrol Dial Transplant

Publication Date





981 - 983


Adult, Aged, Aged, 80 and over, Case-Control Studies, Dialysis Solutions, Female, Humans, Kidney Failure, Chronic, Lactic Acid, Male, Middle Aged, Nervous System Diseases, Peritoneal Dialysis, Continuous Ambulatory, Renal Dialysis, Stereoisomerism