Evidence map›Paper›PMID 40629897›Full record

ReviewRenal failure2025

It is not only fluids: the impact of hydration protocols used for the prevention of contrast nephropathy on renal oxygenation.

Samuel N Heyman, Richard Solomon, Zaid Abassi

Abstract readReview
In one paragraph

Review in Renal failure, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

2 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Samuel N HeymanDepartment of Medicine, Hadassah Hebrew University Hospital, Jerusalem, Israel.
Richard SolomonDepartment of Nephrology, The University of Vermont Medical Center, Burlington, Vermont, USA.
Zaid AbassiDepartment of Physiology, Bruce Rappaport School of Medicine, Technion, Haifa, Israel.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Fluid administration is the mainstay intervention effective in the prevention of radiocontrast-associated nephropathy (CAN) in high-risk patients. Vigorous hydration shortens intratubular solute transit-time and reduces tubular intraluminal concentration of contrast media (CM), decreasing exposure of tubular cells to CM and reducing renal parenchymal retention of the nephrotoxin. Lowered plasma and urine viscosity might also improve vasa recta flow and renal interstitial pressure, improving compromised renal parenchymal microcirculation and oxygenation. Herein we emphasize the overlooked plausible role of down-regulation of tubular transport, generated by vigorous hydration in the mitigation of medullary hypoxia and hypoxic medullary damage generated in CAN. Volume expansion triggers natriuretic peptides that improve renal parenchymal oxygenation and may attenuate hypoxic renal injury. Furthermore, enhanced large-volume hydration protocols used for high-risk patients undergoing coronary interventions or transcatheter aortic valve implantation include the administration of furosemide. Loop diuretics block oxygen consumption in medullary thick ascending limbs, improve medullary oxygenation and prevent outer medullary injury in experimental CAN. Thus, fluids are likely not the sole issue, and restoration of medullary oxygenation is critical in attenuating the risk of CAN by large volume hydration protocols for high-risk patients.

Indexed as

Acute Kidney InjuryContrast MediaFluid TherapyFurosemideHumansKidneyOxygenContrast MediaFurosemideOxygendiureticsfluidsfurosemidehypoxiamedullaRadiocontrast nephropathy

Identifiers

PMID40629897
PMCPMC12243014

What OpenQuestion holds

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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.