Evidence map›Paper›PMID 30239837›Full record

Observational studyNephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association2019

All-cause mortality in relation to changes in relative blood volume during hemodialysis.

Priscila Preciado, Hanjie Zhang, Stephan Thijssen, Jeroen P Kooman, Frank M van der Sande, Peter Kotanko

Open access · bronzeAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 40 citations in OpenAlex.

  1. Guideline
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Utility of Central Venous Oxygen Saturation Gradient in Predicting Mortality in Dialysis with Catheter Access.Medical science monitor : international medical journal of experimental and clinical research · 2025
    Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Review
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  15. The associations between orthostatic blood pressure changes and extracellular volume in hemodialysis patients.Hemodialysis international. International Symposium on Home Hemodialysis · 2022
    Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. The renal replacement therapy landscape in 2030: reducing the global cardiovascular burden in dialysis patients.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2020
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 2 countries.

Priscila PreciadoRenal Research Institute, New York, NY, USA.
Hanjie ZhangRenal Research Institute, New York, NY, USA.
Stephan ThijssenRenal Research Institute, New York, NY, USA.
Jeroen P KoomanMaastricht University Medical Centre, Maastricht, The Netherlands.
Frank M van der SandeMaastricht University Medical Centre, Maastricht, The Netherlands.
Peter KotankoRenal Research Institute, New York, NY, USA.
Renal Research Institute · USMaastricht University Medical Centre · NLIcahn School of Medicine at Mount Sinai · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRelative blood volume (RBV) monitoring is widely used in hemodialysis (HD) patients, yet the association between intradialytic RBV and mortality is unknown.

methodsIntradialytic RBV was recorded once/min during a 6-month baseline period; all-cause mortality was noted during follow-up. RBV at 1, 2 and 3 h into HD served as a predictor of all-cause mortality during follow-up. We employed Kaplan-Meier analysis, univariate and adjusted Cox proportional hazards models for survival analysis.

resultsWe studied 842 patients. During follow-up (median 30.8 months), 249 patients (29.6%) died. The following hourly RBV ranges were associated with improved survival: first hour, 93-96% [hazard ratio (HR) 0.58 (95% confidence interval (CI) 0.42-0.79)]; second hour, 89-94% [HR 0.54 (95% CI 0.39-0.75)]; third hour, 86-92% [HR 0.46 (95% CI 0.33-0.65)]. In about one-third of patients the RBV was within these ranges and in two-thirds it was above. Subgroup analysis by median age (≤/> 61 years), sex, race (white/nonwhite), predialysis systolic blood pressure (SBP; ≤/> 130 mmHg) and median interdialytic weight gain (≤/> 2.3 kg) showed comparable favorable RBV ranges. Patients with a 3-h RBV between 86 and 92% were younger, had higher ultrafiltration volumes and rates, similar intradialytic average and nadir SBPs and hypotension rates, lower postdialysis SBP and a lower prevalence of congestive heart failure when compared with patients with an RBV >92%. In the multivariate Cox analysis, RBV ranges remained independent and significant outcome predictors.

conclusionSpecific hourly intradialytic RBV ranges are associated with lower all-cause mortality in chronic HD patients.

Indexed as

Blood VolumeMortalityAdultAgedBlood PressureCause of DeathDialysis SolutionsFemaleHumansHypotensionKaplan-Meier EstimateKidney Failure, ChronicMaleMiddle AgedMultivariate AnalysisPrognosisDialysis Solutionshemodialysismortalityrelative blood volumeultrafiltration

Identifiers

PMID30239837
PMCPMC6680100
OpenAlexW2890570590

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.