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- Melin, Jan, et al.
(författare)
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Bedside BNP as a marker of overhydration in hemodialysis patients
- 2017
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Ingår i: Journal of the American Society of Nephrology. - 1046-6673 .- 1533-3450. ; 28:Suppl., s. 878-878
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundManagement of hydration status in dialysis patients is a great challenge to nephrologists, and new tools to understand the hydration status (HS) are needed. The aim of this study was to investigate the usefulness of brain natriuretic peptide (BNP), analyzed bedside, as a marker of overhydration (OH) in hemodialysis (HD) patients.MethodsWe investigated the distribution of BNP, measured by Alere Triage® BNP Test, and analyzed the correlation between BNP and HS, defined by bioimpedance spectroscopy (BIS) in 64 HD patients. We assumed there would be a difference in HS between patients with high levels of BNP (h-BNP) and low levels of BNP (l-BNP) and choose an arbitrary cut off of 500 ng/ml, and then differences between the groups were tested for significance. HS, blood pressure (BP) and heart rate was measured, and BNP analyzed, before one mid-week dialysis session. Blood samples were also drawn for analysis of NT-proBNP and inflammatory markers. Demographic data, comorbidities, lab values and nutritional status were collected from medical records.ResultsA positive correlation was found between BNP and OH (r = 0.4), although many severely overhydrated patients had normal or just slightly elevated BNP. BNP levels were above 500 in 38 % (n=24) of the participants. The level of OH before dialysis was higher in the h-BNP group than in the l-BNP group. There was no difference in BP before or after dialysis, but patients in the h-BNP group were older, had lower muscle strength and lower Hemoglobin and Albumin levels compared to the l-BNP group.ConclusionA normal BNP does not rule out OH as defined by BIS in HD patients, on the other hand euvolemia was rare in patients with elevated BNP. This suggests that BNP might serve as a marker of OH in a subgroup of old and frail patients. In a further study we aim to investigate if the relationship between BNP, when elevated, and OH is reproducible at an individual level.
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| 2. |
- Stenberg, Jenny, 1976-, et al.
(författare)
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Implementation of a Decision Aid for Recognition and Correction ofVolume Alterations (Recova®) in Hemodialysis
- 2020
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Konferensbidrag (refereegranskat)abstract
- Background: Chronic fluid overload is an independent predictor of mortality inhemodialysis. Clinical assessment of fluid status is subjective and unprecise, and 30% of the patients remain fluid overloaded at dry weight. This study evaluates the effects of implementing a recently developed decision aid, Recova®, which combines a systematized fluid status procedure with bioimpedance spectroscopy, for individualized dry weight determination in hemodialysis.Methods: The study was a prospective implementation intervention carried out at two hemodialysis units. The impact of the intervention was measured as the proportion of participants at an adequate dry weight at the end of the study, assessed as change in symptoms, hydration status, and N-terminal pro-brain natriuretic peptide (NT-proBNP). Hemodialysis nurses were instructed to use Recova® every two weeks, assessing the study participants’ fluid status and adjusting their dry weights as appropriate. The process of the intervention was measured as frequencies of fluid status assessments, bioimpedance measurements, and dry weight adjustments.Results: Forty-nine patients were enrolled. In participants with fluid overload (n = 10), both bioimpedance-measured overhydration and fluid overload symptom score decreased. In fluid-depleted participants (n = 20), dry weight adjustment frequency and dry weight increased. The post-dialytic negative overhydration was reduced, but NTproBNP increased. In the remaining 19 participants, with low volume status scores, no significant changes were observed.Conclusions: Recova® defines how and when dry weight should be evaluated in hemodialysis patients. Its purpose is to provide the multidisciplinary team with a common language, and thereby facilitate early recognition and appropriate response to fluid alterations. Implementation of Recova® in hemodialysis care increased the monthly frequencies of bioimpedance measurements and dry weight adjustments, and contributedto symptom reduction.
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