Bioelectrical impedance analysis for assessing hydration status in patients undergoing maintenance hemodialysis

doi:10.5527/wjn.v15.i2.118360

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World Journal of Nephrology

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2220-6124

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

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World J Nephrol. Jun 25, 2026; 15(2): 118360
Published online Jun 25, 2026. doi: 10.5527/wjn.v15.i2.118360

Table 2 Hydration parameters before and after the hemodialysis session (n = 54), median (interquartile rage)/ mean ± SD

Parameters	Before dialysis	After dialysis	P value
SBP (mmHg)	137 (129-161)	143 (124-158)	1.000
DBP (mmHg)	76 (67-88)	78 (70-98)	0.608
Total body water (L)	36.94 ± 7.02	33.27 ± 6.42	< 0.001
Intracellular water (L)	19.06 ± 4.15	18.12 ± 3.92	< 0.001
Intracellular water (%)	51.50 ± 4.48	53.87 ± 5.41	< 0.001
Extracellular water (L)	17.89 ± 3.62	15.15 ± 3.26	< 0.001
Extracellular water (%)	48.49 ± 4.48	45.56 ± 4.68	< 0.001
NT pro-BNP (ng/mL)	0.677 (0.182-2.422)	0.549 (0.138-2.322)	0.002
Overhydration (L)	-0.36 ± 2.93	-3.43 ± 2.57	< 0.001
Overhydration/extracellular water (%)	-3.95 ± 16.80	-25.34 ± 19.88	< 0.001
Extracellular water/weight (%)	24.81 ± 3.36	21.55 ± 2.99	< 0.001

SBP: Systolic blood pressure; DBP: Diastolic blood pressure; NT pro-BNP: N-terminal pro-brain natriuretic peptide.

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Citation: Borges GLS, Mendes LR, Trombim IC, Goes CR, Vogt BP. Bioelectrical impedance analysis for assessing hydration status in patients undergoing maintenance hemodialysis. World J Nephrol 2026; 15(2): 118360
URL: https://www.wjgnet.com/2220-6124/full/v15/i2/118360.htm
DOI: https://dx.doi.org/10.5527/wjn.v15.i2.118360

Borges GLS, Mendes LR, Trombim IC, Goes CR, Vogt BP. Bioelectrical impedance analysis for assessing hydration status in patients undergoing maintenance hemodialysis. World J Nephrol 2026; 15(2): 118360 [PMID: 42395661 DOI: 10.5527/wjn.v15.i2.118360]

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