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The dual blockade of the renin-angiotensin system in hemodialysis patients requires decreased dialysate sodium concentration.
Int Urol Nephrol. 2013 Oct; 45(5):1365-72.IU

Abstract

PURPOSE

The study evaluated whether the dual blockade of the renin-angiotensin system may influence the sodium balance in hemodialysis.

METHODS

The study involved 148 hemodialysis patients (male 85, female 63), mean age 59.6 ± 12.9 years. Participants were randomly selected to receive either angiotensin-converting enzyme inhibitor (ACEI)--subgroup A--or dual blockade ACEI and angiotensin receptor blocker (ARB)--subgroup AA.

RESULTS

At baseline, in the A versus AA subgroups, the pre-dialysis sodium concentrations (mmol/l) were 137.7 ± 0.5 versus 137.9 ± 0.8, the sodium gradients 2.6 ± 0.5 versus 2.9 ± 0.4, interdialytic weight gain (IWG) (kg) 3.1 ± 0.2 versus 3.0 ± 0.3, and thirst inventory score (points) 18.1 ± 1.0 versus 19.0 ± 1.7, respectively. After 3 months of therapy, a decrease in sodium concentration to 134.5 ± 0.5 and the increase of its gradient to 5.5 ± 0.5 were noted in the AA subgroup. An elevation of mean interdialytic weight gain to 3.47 ± 0.2 and thirst score to 21.3 ± 2.1 was observed. No significant changes in subgroup A were found. One month of the dialysate sodium concentration being lowered from 140 mmol/l to 138 mmol/l was associated with reduced serum sodium concentration and gradient, decreased IWG and restored moderate thirst score in the AA subgroup (137.5 ± 0.6 and 2.9 ± 0.6, 3.0 ± 0.5 and 19.2 ± 1.3, respectively).

CONCLUSIONS

The dual blockade of the renin-angiotensin system affects sodium balance, increasing the sodium gradient, thus elevating thirst sensation and enhancing interdialytic weight gain. In maintenance hemodialysis patients treated with both ACEI and ARB, lowered dialysate sodium levels should be prescribed.

Authors+Show Affiliations

Department of Kidney Transplantation, Dialysis Department, Norbert Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Kopcinskiego 22, 90-153, Lodz, Poland, rzwiech@mp.pl.No affiliation info available

Pub Type(s)

Journal Article
Randomized Controlled Trial

Language

eng

PubMed ID

23136031

Citation

Zwiech, Rafał, and Agnieszka Bruzda-Zwiech. "The Dual Blockade of the Renin-angiotensin System in Hemodialysis Patients Requires Decreased Dialysate Sodium Concentration." International Urology and Nephrology, vol. 45, no. 5, 2013, pp. 1365-72.
Zwiech R, Bruzda-Zwiech A. The dual blockade of the renin-angiotensin system in hemodialysis patients requires decreased dialysate sodium concentration. Int Urol Nephrol. 2013;45(5):1365-72.
Zwiech, R., & Bruzda-Zwiech, A. (2013). The dual blockade of the renin-angiotensin system in hemodialysis patients requires decreased dialysate sodium concentration. International Urology and Nephrology, 45(5), 1365-72. https://doi.org/10.1007/s11255-012-0320-z
Zwiech R, Bruzda-Zwiech A. The Dual Blockade of the Renin-angiotensin System in Hemodialysis Patients Requires Decreased Dialysate Sodium Concentration. Int Urol Nephrol. 2013;45(5):1365-72. PubMed PMID: 23136031.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The dual blockade of the renin-angiotensin system in hemodialysis patients requires decreased dialysate sodium concentration. AU - Zwiech,Rafał, AU - Bruzda-Zwiech,Agnieszka, Y1 - 2012/11/08/ PY - 2012/06/26/received PY - 2012/10/22/accepted PY - 2012/11/9/entrez PY - 2012/11/9/pubmed PY - 2014/7/1/medline SP - 1365 EP - 72 JF - International urology and nephrology JO - Int Urol Nephrol VL - 45 IS - 5 N2 - PURPOSE: The study evaluated whether the dual blockade of the renin-angiotensin system may influence the sodium balance in hemodialysis. METHODS: The study involved 148 hemodialysis patients (male 85, female 63), mean age 59.6 ± 12.9 years. Participants were randomly selected to receive either angiotensin-converting enzyme inhibitor (ACEI)--subgroup A--or dual blockade ACEI and angiotensin receptor blocker (ARB)--subgroup AA. RESULTS: At baseline, in the A versus AA subgroups, the pre-dialysis sodium concentrations (mmol/l) were 137.7 ± 0.5 versus 137.9 ± 0.8, the sodium gradients 2.6 ± 0.5 versus 2.9 ± 0.4, interdialytic weight gain (IWG) (kg) 3.1 ± 0.2 versus 3.0 ± 0.3, and thirst inventory score (points) 18.1 ± 1.0 versus 19.0 ± 1.7, respectively. After 3 months of therapy, a decrease in sodium concentration to 134.5 ± 0.5 and the increase of its gradient to 5.5 ± 0.5 were noted in the AA subgroup. An elevation of mean interdialytic weight gain to 3.47 ± 0.2 and thirst score to 21.3 ± 2.1 was observed. No significant changes in subgroup A were found. One month of the dialysate sodium concentration being lowered from 140 mmol/l to 138 mmol/l was associated with reduced serum sodium concentration and gradient, decreased IWG and restored moderate thirst score in the AA subgroup (137.5 ± 0.6 and 2.9 ± 0.6, 3.0 ± 0.5 and 19.2 ± 1.3, respectively). CONCLUSIONS: The dual blockade of the renin-angiotensin system affects sodium balance, increasing the sodium gradient, thus elevating thirst sensation and enhancing interdialytic weight gain. In maintenance hemodialysis patients treated with both ACEI and ARB, lowered dialysate sodium levels should be prescribed. SN - 1573-2584 UR - https://www.unboundmedicine.com/medline/citation/23136031/The_dual_blockade_of_the_renin_angiotensin_system_in_hemodialysis_patients_requires_decreased_dialysate_sodium_concentration_ L2 - https://doi.org/10.1007/s11255-012-0320-z DB - PRIME DP - Unbound Medicine ER -