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Enfermería Nefrológica

versão On-line ISSN 2255-3517versão impressa ISSN 2254-2884


CABALLERO BARBA, Rosa et al. Dose evaluation in dialysis through ionic dialysance. Enferm Nefrol [online]. 2015, vol.18, n.1, pp.19-22. ISSN 2255-3517.

One of the main determinants of survival in patients undergoing chronic hemodialysis is the dialysis dose, the formulas commonly used are those based on the kinetic model of the urea, however due to the need for at least two blood samples, its applicability at all dialysis sessions is quite low. Currently almost all dialysis monitors are equipped with ionic dialysance sensors, allowing to indirectly and at real-time to get information about urea clearance in all dialysis sessions without obtaining blood samples. In order to evaluate the correlation between dialysis dose measured by ionic dialysance and those measured by urea kinetic equation by Kt/V second generation according to Daugirdas, we designed a crosssectional study involving 28 prevalent patients in our dialysis unit, we obtained affiliation data, dialysis dose (clearance, KT, KT/V) by ionic dialysance and KT/V by Daugirdas formula. Average KT/V by ionic dialysance was 0.29 ± 1.79 KT/ V and 0.35 ± 1.95 Daugirdas. The statistical analysis showed a significant correlation between both methods (R2 = 0.86 p <0.001). With the results of this study we conclude that ionic dialysance is a useful tool to assess the dose of dialysis in our patients and it use should be generalized in all dialysis units. is showed up by unwillingness among hypertensive patients refractory, rather than an information problem. For this reason, a nursing intervention focused on solving the problem, is necessary.

Palavras-chave : ionic dialysance; dialysis dose; KT/V; kinetics of urea.

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