The relationship between interdialytic weight gain and patient compliance. A single centred cohort study (n=21)

Casey, Jonathan D; Johnson, Vicky Saliba; McClelland, Peter D.

doi:10.1111/j.1755-6686.2001.tb00175.x

Cited by 6 publications

(3 citation statements)

References 7 publications

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“…(1) IDWG as a measure of nonadherence: For decades it has been emphasized that adherence to fluid restriction is necessary to reduce IDWG, and IDWG has been equated with nonadherence [28,29,30,31,32,33,34,35,36,37,38] (in an oversimplified disregard of the thirst mechanism, as specified below).…”

Section: Interdialytic Weight Gain: Reported Causes and Consequencesmentioning

confidence: 99%

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Significance of Interdialytic Weight Gain versus Chronic Volume Overload: Consensus Opinion

et al. 2013

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Predialysis volume overload is the sum of interdialytic weight gain (IDWG) and residual postdialysis volume overload. It results mostly from failure to achieve an adequate volume status at the end of the dialysis session. Recent developments in bioimpedance spectroscopy and possibly relative plasma volume monitoring permit noninvasive volume status assessment in hemodialysis patients. A large proportion of patients have previously been shown to be chronically volume overloaded predialysis (defined as >15% above ‘normal' extracellular fluid volume, equivalent to >2.5 liters on average), and to exhibit a more than twofold increased mortality risk. By contrast, the magnitude of the mortality risk associated with IDWG is much smaller and only evident with very large weight gains. Here we review the available evidence on volume overload and IDWG, and question the use of IDWG as an indicator of ‘nonadherence' by describing its association with postdialysis volume depletion. We also demonstrate the relationship between IDWG, volume overload and predialysis serum sodium concentration, and comment on salt intake. Discriminating between volume overload and IDWG will likely lead to a more appropriate management of fluid withdrawal during dialysis. Consensually, the present authors agree that this discrimination should be among the primary goals for dialysis caretakers today. In consequence, we recommend objective measures of volume status beyond mere evaluations of IDWG.

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Section: Interdialytic Weight Gain: Reported Causes and Consequencesmentioning

confidence: 99%

“…(2) Psychological aspects of IDWG: Since IDWG has been regarded as related to nonadherence, much attention has been paid to psychological aspects of IDWG and ways to help patients modify their behavior [31,34,35,39,40,41,42,43,44,45,46,47,48,49,] reviewed in [50]. …”

Section: Interdialytic Weight Gain: Reported Causes and Consequencesmentioning

confidence: 99%

Significance of Interdialytic Weight Gain versus Chronic Volume Overload: Consensus Opinion

et al. 2013

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“…Moreover, IDWG has been regarded as related to non-adherence, and adherence to fluid restriction is necessary to reduce IDWG. 3,24 Those…”

Section: Dovepressmentioning

confidence: 99%

Paradoxical Association Between Intradialytic Blood Pressure Change and Long-Term Mortality with Different Levels of Interdialytic Weight Gain

Yu¹,

Chen²,

Yang³

et al. 2021

IJGM

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Background: A greater interdialytic weight gain (IDWG) implies a greater ultrafiltration rate, which might lead to hemodynamic instability and intradialytic blood pressure (BP) change in hemodialysis patients. However, current studies have not explicated the impact of IDWG on the association between intradialytic BP changes and prognosis, especially in patients without cardiac dysfunction and diabetes. In this study, we aimed to explore the relationship between absolute intradialytic BP changes and mortality with different IDWG levels. Methods: A total of 204 hemodialysis patients (without cardiac dysfunction and diabetes) were included in this prospective observation study, with a mean follow-up of 55.32±20.99 months. Initially, we collected IDWG, IDWG% (percentages according to dry weight), and pre-/post-BPs of 36 consecutive dialysis sessions during three months enrollment. And the average value of them was defined as baseline value. Patients were divided into 3 cohorts according to IDWG% tertiles (<3.3%, 3.3%-4.6%, ≥4.6%). Comparisons between different tertiles were analyzed. Results: Compared to the low IDWG% group (tertile 1, T1), patients of high IDWG% group (tertile 3, T3) were younger, had higher ultrafiltration rate, less residual kidney function, lower BMI and dry weight, longer dialysis vintage and higher N terminal pro B type natriuretic peptide levels (P<0.05). Correlations were found between IDWG% and intradialytic BP changes. Kaplan-Meier analysis and multivariate Cox regression model adjusted for demographic data, dialysis information and predialysis BPs indicated that greater absolute intradialytic BP changes were associated with worse prognosis in T1 group (P<0.05). While in T3 group, less absolute intradialytic BP changes were associated with higher mortality (P<0.05). Conclusion:There is a paradoxical association between absolute intradialytic BP changes and long-term mortality with different IDWG levels. Both BP stability and volume balance are crucial to patients' prognosis.

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Implementation of an automated system for monitoring adherence to hemodialysis treatment: A report of seven years of experience

Bellazzi

Sacchi

Caffi

et al. 2012

International Journal of Medical Informatics

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The relationship between interdialytic weight gain and patient compliance. A single centred cohort study (n=21)

Cited by 6 publications

References 7 publications

Significance of Interdialytic Weight Gain versus Chronic Volume Overload: Consensus Opinion

Significance of Interdialytic Weight Gain versus Chronic Volume Overload: Consensus Opinion

Paradoxical Association Between Intradialytic Blood Pressure Change and Long-Term Mortality with Different Levels of Interdialytic Weight Gain

Implementation of an automated system for monitoring adherence to hemodialysis treatment: A report of seven years of experience

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