Acute effect of citrate bath on postdialysis alkalaemia.

Autor:	Ortiz Pde S; Servicio de Nefrología, Hospital Universitario Infanta Leonor, Madrid (España). Electronic address: psequerao@senefro.org., Ramón MA; Servicio de Nefrología, Hospital Universitario Infanta Leonor, Madrid (España)., Pérez-García R; Servicio de Nefrología, Hospital Universitario Infanta Leonor, Madrid (España)., Prats EC; Servicio de Nefrología, Hospital Universitario Infanta Leonor, Madrid (España)., Cobo PA; Servicio de Nefrología, Hospital Universitario Infanta Leonor, Madrid (España)., Arroyo RA; Servicio de Nefrología, Hospital Universitario Infanta Leonor, Madrid (España)., Díaz MO; Servicio de Nefrología, Hospital Universitario Infanta Leonor, Madrid (España)., Carretero MP; Servicio de Nefrología, Hospital Universitario Infanta Leonor, Madrid (España).
Jazyk:	English; Spanish; Castilian
Zdroj:	Nefrologia : publicacion oficial de la Sociedad Espanola Nefrologia [Nefrologia] 2015; Vol. 35 (2), pp. 164-71. Date of Electronic Publication: 2015 Jun 23.
DOI:	10.1016/j.nefro.2014.10.001
Abstrakt:	Introduction: The correction of metabolic acidosis caused by renal failure is achieved by adding bicarbonate during dialysis. In order to avoid the precipitation of calcium carbonate and magnesium carbonate that takes place in the dialysis fluid (DF) when adding bicarbonate, it is necessary to add an acid, usually acetate, which is not free of side effects. Thus, citrate appears as an advantageous alternative to acetate, despite the fact that its acute effects are not accurately known. Objective: To assess the acute effect of a dialysis fluid containing citrate instead of acetate on acid-base balance and calcium-phosphorus metabolism parameters. Material and Methods: A prospective crossover study was conducted with twenty-four patients (15 male subjects and 9 female subjects). All patients underwent dialysis with AK-200-Ultra-S monitor with SoftPac® dialysis fluid, made with 3 mmol/L of acetate and SelectBag Citrate®, with 1 mmol/L of citrate and free of acetate. The following were measured before and after dialysis: venous blood gas monitoring, calcium (Ca), ionic calcium (Cai), phosphorus (P) and parathyroid hormone (PTH). Results: Differences (p<0.05) were found when using the citrate bath (C) compared to acetate (A) in the postdialysis values of: pH, C: 7.43 (0.04) vs. A: 7.47 (0.05); bicarbonate, C: 24.7 (2.7) vs. A: 27.3 (2.1) mmol/L; base excess (BEecf), C: 0.4 (3.1) vs. A: 3.7 (2.4) mmol/L; corrected calcium (Cac), C: 9.8 (0.8) vs. A: 10.1 (0.7) mg/dL; and Cai, C: 1.16 (0.05) vs. A: 1.27 (0.06) mmol/L. No differences were found in either of the parameters measured before dialysis. Conclusion: Dialysis with citrate provides better control of postdialysis acid-base balance, decreases/avoids postdialysis alkalaemia, and lowers the increase in Cac and Cai. This finding is of special interest in patients with predisposing factors for arrhythmia and patients with respiratory failure, carbon dioxide retention, calcifications and advanced liver disease. (Copyright © 2015. Published by Elsevier España, S.L.U.)
Databáze:	MEDLINE
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