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Enfermería Nefrológica
versão On-line ISSN 2255-3517versão impressa ISSN 2254-2884
Resumo
CREHUET-RODRIGUEZ, Isabel; RAMIREZ-CREHUET, Marta; MENDEZ-BRISO-MONTIANO, Pilar e MULERO-SAN JOSE, Mª Teresa. Influence of the dialysate flow on the quality parameters of post-dilution line hemodiafiltration. Enferm Nefrol [online]. 2021, vol.24, n.1, pp.77-81. Epub 26-Abr-2021. ISSN 2255-3517. https://dx.doi.org/10.37551/s2254-28842021008.
Introduction:
Online post-dilution hemodiafiltration is a variant of hemodialysis that, according to different studies, can increase patient survival. Initially, and unlike conventional hemodialysis, very high dialysate flows were used (up to 700-800 ml/min), new studies questioned the usefulness of elevation to achieve purifying efficacy.
Objective:
To analyze the differences produced in Kt, Kt/V and infusion volume in post-dilutional online hemodiafiltration using a dialysate flow at 600 ml/min and 500 ml/min, as well as to evaluate the impact on the consumption of water during the session.
Method:
22 dialyzed chronic patients undergoing post-dilutional hemodiafiltration on Artis® monitors were included. 440 sessions were studied, 220 with each flow. Age, time of permanence in technique, Kt, Kt/V and infusion volume were studied.
Results:
Of the 22 patients, 7 were women, with a median age of 79.5 years (range 40-86) and a mean dialysis time of 25.13±10.51 months. The mean values for dialysate flows of 600 ml/min and 500 ml/min were respectively: Kt: 45.5±9.4 and 45.2±9.2 liters, Kt/V: 1.52±0.33 and 1.51±0.33, and infusion volume: 21.84±4.50 and 21.94±4.51 liters.
Conclusions:
According to our results, on-line post-dilution hemodiafiltration can be dialyzed with dialysate flows of 500 ml/min without impairing the hemodialysis quality parameters. The decrease in dialysate flow from 600 to 500 ml/min in post-dilutional on-line hemodiafiltration does not produce a loss in quality parameters and allows to reduce water consumption.
Palavras-chave : on-line hemodiafiltration; dialysate flow; Kt; infusion volume.