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Revista de la Sociedad Española de Enfermería Nefrológica

versión impresa ISSN 1139-1375

Resumen

FERNANDEZ MARTINEZ, Ana Vanessa et al. Comparative study of the dialysis dose measured by ionic dialysance (Kt) and by Kt/V. Rev Soc Esp Enferm Nefrol [online]. 2009, vol.12, n.2, pp.21-26. ISSN 1139-1375.

The dialysis dose administered affects patient survival, and it is desirable to attain an optimal Kt/v. Different studies show that there is a good correlation between the Kt measured by dialysance (with no need for blood extractions) and the Kt/V. The aim of this prospective study was to compare the measurement of the dialysis doses using both methods (Kt and Kt/V) in our haemodialysis population, as well as factors related to the technique that affect the dialysis dose reached. 131 patients were studied. No significant differences were observed in Kt depending on sex while Kt/V is significantly higher in women (1.93 ± 0.23) than in men (1.59 ± 0.25). While in Kt the differences are significant depending on the vascular access, they are not for Kt/V. In the dialysis dose depending on the type of haemodialysis, no significant differences were observed in Kt/V between those who receive treatment with conventional HD and those undergoing on-line haemodiafiltration, while 90% of the patients undergoing on-line haemodiafiltration reach an optimal Kt compared to 45.5% in conventional HD. Continuous monitoring of the dialysis dose by measuring the Kt through ionic dialysance makes it possible to discriminate better which patients are in a situation of infradialysis than by determining Kt/V.

Palabras clave : Dialysis dose; KT; KT/V; Haemodialysis; Haemodiafiltration.

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