INTRODUCTION: Ethanol lock (EL) is used to reduce catheter infections, but its impact on dialysis catheter dysfunction has not been studied. METHODS: We analyzed the rate of dialysis silicone catheter dysfunction after an interdialytic 60% EL in an open prospective controlled non crossover cohort study, with each patient being his or her own control. The study was divided into three consecutive 2-week periods: the pre- and post-intervention periods, in which interdialytic standard locks (SL) were used, and the intervention period, in which one EL was instilled during the first week, and two consecutively in the second week. We analyzed the rate of catheter dysfunction (exchange, use of fibrinolytic, reversing the lines, difficulty in instilling or withdrawing fluid) after EL or SL. RESULTS: In 30 patients, 90 EL were instilled. The rate of catheter dysfunction increased during the EL period (2 - 13%, p < 0.001), and between the two consecutive dialysis sessions before and after EL (p < 0.05). It decreased between the two consecutive dialysis sessions after EL and the following dialysis session after an SL (p < 0.05). No catheter was removed. The urea reduction ratio did not differ in dialysis after an SL and after an EL (0.77 vs. 0.73, p = 0.17). CONCLUSION: Short term EL is associated with a transient increase in catheter dysfunction, without resulting in catheter removal or decreasing dialysis efficiency.
INTRODUCTION:Ethanol lock (EL) is used to reduce catheter infections, but its impact on dialysis catheter dysfunction has not been studied. METHODS: We analyzed the rate of dialysis siliconecatheter dysfunction after an interdialytic 60% EL in an open prospective controlled non crossover cohort study, with each patient being his or her own control. The study was divided into three consecutive 2-week periods: the pre- and post-intervention periods, in which interdialytic standard locks (SL) were used, and the intervention period, in which one EL was instilled during the first week, and two consecutively in the second week. We analyzed the rate of catheter dysfunction (exchange, use of fibrinolytic, reversing the lines, difficulty in instilling or withdrawing fluid) after EL or SL. RESULTS: In 30 patients, 90 EL were instilled. The rate of catheter dysfunction increased during the EL period (2 - 13%, p < 0.001), and between the two consecutive dialysis sessions before and after EL (p < 0.05). It decreased between the two consecutive dialysis sessions after EL and the following dialysis session after an SL (p < 0.05). No catheter was removed. The urea reduction ratio did not differ in dialysis after an SL and after an EL (0.77 vs. 0.73, p = 0.17). CONCLUSION: Short term EL is associated with a transient increase in catheter dysfunction, without resulting in catheter removal or decreasing dialysis efficiency.
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