Changes in hydration following haemodialysis estimated with bioimpedance spectroscopy

El-Kateb, Sally; Davenport, Andrew

doi:10.1111/nep.12645

Cited by 17 publications

(16 citation statements)

References 25 publications

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“…Data collected during a study to compare distribution of fluid in haemodialysis patients and normal controls allowed us to reproduce the study recently reported by El‐Kateb and Davenport . BCM measurements were made on 47 HD patients, 60% men, mean age 60 ± 16 years, before and after dialysis.…”

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confidence: 59%

“…BCM measurements were made on 47 HD patients, 60% men, mean age 60 ± 16 years, before and after dialysis. In contrast to El‐Kateb and Davenport, there was a strong correlation between the fall in fluid overload (‘overhydration’, OH) from 1.5 ± 1.5 to −0.4 ± 1.5 L and the fall in body weight from 81.6 ± 22.6 to 80.0 ± 22.6 kg (Pearson r = 0.65, p < 0.0001).…”

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confidence: 99%

“…There was a non‐significant bias of +0.3 ± 0.8 L (95% limits of agreement −1.28 to 1.87 L). The axes match those in Figure 1 of El‐Kateb and Davenport, illustrating the reduction in scatter when BCM measurements are made by an experienced operator following an established protocol.…”

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confidence: 99%

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Comparison of intradialytic changes in weight and fluid status

2016

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confidence: 59%

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Comparison of intradialytic changes in weight and fluid status

2016

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“…Unlike with some other BIS devices, the electrodes remained in place during the dialysis session [29], and no electrode had to be replaced, thereby eliminating error due to changes in electrode position.…”

Section: Discussionmentioning

confidence: 99%

Do Bioimpedance Measurements of Over-Hydration Accurately Reflect Post-Haemodialysis Weight Changes?

Tangvoraphonkchai¹,

Davenport²

2016

Nephron

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Introduction: Bioelectrical impedance spectroscopy (BIS) devices are being used to determine ultrafiltration requirements to achieve target weight for haemodialysis (HD) patients. Pre-dialysis measurements are more convenient for both patients and staff. We wished to compare the changes in pre- and post-dialysis hydration measured by BIS with actual weight loss. Methods: We compared paired BIS measurements made pre and post HD using a BIS device based on a 3-compartmental model, designed to provide information on extracellular water (ECW) excess. Results: BIS was measured in 49 HD patients, 35 male (71.4%) with mean age 67.6 ± 14.2. Weight fell significantly from 69.2 ± 17.8 to 67.6 ± 17.4 kg, and BIS over hydration (OH) from 4.5 ± 3.3.4 to 3.4 ± 2.9 litres, and ECW from 16.8 ± 4.8 to 15.5 ± 4.4 litres, but there was no change in the amount of intracellular water. Weight loss correlated positively with the change in ECW, but exceeded the fall in OH; mean bias -0.58 (95% confidence limits -3.6 to 4.8 kg). Summary: We measured OH pre and post HD, but did not find that the change in OH correlated with changes in body weight. Although there was a correlation between changes in OH and ECW, there was none for weight. Our findings do not support total reliance on pre-dialysis BIS alone for assessing volume status in HD patients, but rather BIS should be considered an aid to clinical assessment of volume status.

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“…There were several methods to measure lean muscle mass and fat mass, such as dual‐energy X‐ray absorptiometry (DEXA) and bioimpedance analysis (BIA). However, these methods were not available worldwide and might require repeat measurements …”

Section: Introductionmentioning

confidence: 99%