title: A Comparison between Two Dilute Citrate Solutions (15 vs. 18 mmol/l) in Continuous Renal Replacement Therapy: The Base Excess and Renal Substitution Solution Study.
abstract: The study aimed to compare the changes in biochemistry occurring in patients undergoing continuous renal replacement therapy (CRRT) using 2 trisodium citrate solutions, Baxter hemofiltration fluid containing 18 mmol/l (C18) and Baxter NamSol, a custom manufactured solution containing 15 mmol/l (C15), both delivered as regional citrate anticoagulation (RCA) predilution fluids for hemofiltration.
  
  
  
  This is a prospective randomized control trial conducted in a major regional adult intensive care unit. Patients were randomized to 1 of 2 RCA fluids. Progress was monitored using a standard daily panel of acid-base and biochemical tests.
  
  
  
  Forty-eight patients, 23 C18 and 25 C15, were recruited. In both groups, acidosis resolved within 36 h of institution of CRRT. By day 3, there were significant differences in serum [Na+], standard base excess and serum bicarbonate concentration, all being higher in the C18 group (p < 0.01). By day 5, the PaCO2 had also risen in the C18 group (p = 0.03).
  
  
  
  The C15 solution provided equivalent filter life to the C18 solution but without significant hypernatremia and metabolic alkalosis.
authors.affiliation: Department of Intensive Care Medicine, Nambour Hospital, SCHHS, Nambour, Australia.
authors.forename: Chris
authors.initials: C
authors.lastname: Anstey
authors.forename: Victoria
authors.initials: V
authors.lastname: Campbell
authors.forename: Alexander
authors.initials: A
authors.lastname: Richardson
mesh_terms: D058186:Acute Kidney Injury / Q000139:chemically induced; D000925:Anticoagulants; D002951:Citrates; D019343:Citric Acid; D006440:Hemofiltration; D006801:Humans; D011446:Prospective Studies; D017582:Renal Replacement Therapy
chemical_list: D000925:Anticoagulants; D002951:Citrates; D019343:Citric Acid