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- W3192022021 abstract "espanolUna de las funciones principales de la hemodialisis (HD) es conseguir un ade- cuado balance salino. La dieta hiposodica facilita el control de la sed, HTA y de la I. cardiaca. Actualmente es posible, con metodos no invasivos, conocer la trans- ferencia de masa ionica (TMI) o balance ionico (practicamente cloruro sodico) equi- valente a la ingesta de sal. Los perfiles descendentes de UF y conductividad me- joran la tolerancia a la dialisis aunque se ha descrito que podrian incrementar la sed debido a un inadecuado balance de sodio. El objetivo del estudio fue valorar la ingesta habitual de sal de los pacientes, la repercusion de utilizar o no perfiles descendentes y el efecto de una dieta mas estricta en sal sobre la ganancia de peso, cifras de presion arterial y tolerancia a la dialisis. Se estudiaron 17 pacientes, 12 varones y 5 mujeres, de 60,4 ± 17 anos. Cada paciente, con sus parametros habituales de HD, recibio 3 sesiones consecutivas (una semana) sin perfiles; 3 sesiones consecutivas con perfiles logaritmicos des- cendentes de UF (1,6 al inicio y 0,1 l/h al final) y de conductividad (15,5-16,0 mS/cm inicial, 14,3 intermedia y 13,9-14,0 final); y una sesion adicional en la que se insistio extremar la dieta «sin sal». Todas las dialisis se realizaron con monitor Integra (Hospal) equipado con Diascan y Hemoscan. Se registro en cada sesion la TMI, la conductividad plasmatica (Cp), la ganancia de peso (GP), la presion arte- rial media (TAM), las variaciones del volumen sanguineo (VS) como marcador de rellenado vascular y el numero de hipotensiones. La TMI fue de 1.144 ± 356 mmol (semana sin perfiles) y de 1.242 ± 349 mmol (semana con perfiles), NS, equivalente a 9,61 ± 3,0 y 10,4 ± 2,9 g de sal/d res- pectivamente. La Cp inicial fue 14,31 ± 0,20 mS/cm (sin perfiles) vs 14,47 ± 0,20 mS/cm (con perfiles), p La GP fue 1,78 ± 0,52 kg (sin sal) vs 2,32 ± 0,76 kg (dieta habitual), p La Cp inicial fue 14,16 ± 0,17 (sin sal) vs 14,31 ± 0,21 (dieta habitual), p La TAM fue de 94,4 ± 12 (sin sal) vs 99,1 ± 12 (dieta habitual), p La variacion del VS fue de -5,91 ± 2,0 (sin sal) vs -7,25 ± 3,3% (dieta habitual), p Concluimos que el seguimiento de la TMI nos permite conocer la ingesta de sal de los pacientes en HD. El uso de perfiles de UF y conductividad mejoro la tole- rancia con un balance salino, cifras de presion arterial y ganancia de peso simi- lares. Una reduccion de 3 g en la ingesta de sal, constatada en este estudio, se acompana de una menor ganancia de peso, mejor control de HTA y mejoria de la tolerancia a la dialisis EnglishOne of the main goals of dialysis is to reach a correct sodium balance. Die- tary sodium restriction facilitates control of thirst, water overload, hypertension and cardiac failure. Nowadays, it is possible to estimate sodium mass transfer and known interdialytic salt intake, by means of non-invasive methods. The use of dialysate sodium profiles improves dialysis tolerance but it has been reported that interdialytic thirst may increase because of an innappropriate sodium balance. The aim of this study was to evaluate the usual salt intake in hemodialysis patients, the effects on interdialytic gain weight, arterial pressure, blood volume preserva- tion and dialysis tolerance of two different profiles of dialysate sodium and an ad- ditional session with salt restriction. Seventeen dialysis patients, 12 male and 5 females, were studied. Each pa- tient underwent seven hemodialysis treatments: three consecutives sessions (a week) with constant sodium and ultrafiltration hemodialysis; three consecutive sessions with exponential decrease of conductivity (Initial 15.5-16.0, mid-ses- sion 14.3 and at the end 13.9-14 mS/cm) and ultrafiltration (1.6 l/h initial and 0,1 at the end) profiled hemodialysis; and an additional session which had a special dietary salt restriction. Dialysis parameters and dry weight were kept constant. Integra monitor with Diascan and Hemoscan biosensors (Hospal) were used in all sessions. We measured pre- and postdialytic plasma conductivity, sodium mass transfer, interdialytic weight gain, mean arterial pressure (MAP), percent reductions of blood volume (%R-BV) and hypotensive episodes during dialysis. Mean sodium mass transfer was 1,144 ± 356 mmol (no profile week) vs 1,242 ± 349 mmol (week with profiles), NS. It was equivalent to a salt ingestion of 9.6 ± 3 and 10.4 ± 3 g/day respectively. End plasma conductivity was 14.04 ± 0.14 (no profile) versus 14.21 ± 0.08 mS/cm (profiled), p Predialysis blood pressures were decreased with dietary salt restriction, MAP was 99.1 ± 11 vs 94.4 ± 12 mmHg (p In conclusion, automatic measurement of sodium mass transfer is a practical tool to follow dietary salt ingestion in hemodialysis patients. It allows us accura- te, individualised and continual dietary interventions. The use of exponential de- crease sodium profiles improve dialysis tolerance without changes in sodium ba- lance, interdialytic weight gain or arterial pressure. A reduction of three g in salt intake observed in this study was beneficial in interdialytic weight gain, dialysis tolerance and blood pressure control." @default.
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- W3192022021 date "2001-01-01" @default.
- W3192022021 modified "2023-09-23" @default.
- W3192022021 title "Valoración de la ingesta de sal en hemodiálisis" @default.
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