Evidence map›Paper›PMID 33549321›Full record

Observational studyBritish journal of anaesthesia2021

Intraoperative venous congestion and acute kidney injury in cardiac surgery: an observational cohort study.

Marcos G Lopez, Matthew S Shotwell, Jennifer Morse, Yafen Liang, Jonathan P Wanderer, Tarek S Absi, Keki R Balsara, Melissa M Levack, Ashish S Shah, Antonio Hernandez and 1 more

2 registry-linked trialsOpen access · greenAbstract readObservational Study
In one paragraph

Observational study in British journal of anaesthesia, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
6.7field-weighted citation impact, top 2% 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.

NCT05682716 nacompletednot on this mapstarted 2022, after this paper: background citation

Application of Intraoperative Transesophageal Echocardiography Imaging of Vein and Controlled Low Central Venous Pressure in Early Prediction and Intervention of Acute Renal Injury Associated With Cardiac Surgery

TypeinterventionalSponsorNanjing First Hospital, Nanjing Medical UniversityRan2022 to 2022Enrolled137ConditionsAcute Kidney InjuryArmsControlled low central venous pressure (CLCVP) technology, Nitroglycerin
NCT05855954 narecruitingnot on this mapstarted 2023, after this paper: background citation

Application of Controlled Low Central Venous Pressure Technique in Early Intervention of Cardiac Surgery-associated Acute Kidney Injury

TypeinterventionalSponsorNanjing First Hospital, Nanjing Medical UniversityRan2023 to 2025Enrolled200ConditionsAcute Kidney InjuryArmscontrolled low central venous pressure technique (CLCVP)
3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 1 synthesis or guideline pooled it, 54 citations in OpenAlex.

  1. Guideline
  2. Trial
  3. Trial
  4. Cardiac Surgery Management in Patients With Liver Cirrhosis.Reviews in cardiovascular medicine · 2026
    Review
  5. Observational
  6. Observational
  7. Observational
  8. Article
  9. Article
  10. Rethinking ejection fraction for anesthesiologists: a narrative review.Perioperative medicine (London, England) · 2026
    Review
  11. Observational
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Observational
  19. Article
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 2 institutions in 1 country.

Marcos G LopezDivision of Anesthesiology Critical Care Medicine, Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN, USA. Electronic address: marcos.g.lopez@vumc.org.
Matthew S ShotwellDepartment of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, USA.
Jennifer MorseDepartment of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, USA.
Yafen LiangDivision of Cardiovascular Anesthesia, Department of Anesthesiology, University of Texas Health Science Center at Houston, Houston, TX, USA.
Jonathan P WandererDepartment of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN, USA; Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, USA.
Tarek S AbsiDepartment of Cardiac Surgery, Vanderbilt University Medical Center, Nashville, TN, USA.
Keki R BalsaraDepartment of Cardiac Surgery, Vanderbilt University Medical Center, Nashville, TN, USA.
Melissa M LevackDepartment of Cardiac Surgery, Vanderbilt University Medical Center, Nashville, TN, USA.
Ashish S ShahDepartment of Cardiac Surgery, Vanderbilt University Medical Center, Nashville, TN, USA.
Antonio HernandezDivision of Anesthesiology Critical Care Medicine, Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN, USA; Division of Cardiothoracic Anesthesiology, Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN, USA.
Frederic T BillingsDivision of Anesthesiology Critical Care Medicine, Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN, USA; Division of Cardiothoracic Anesthesiology, Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN, USA.
Vanderbilt University Medical Center · USThe University of Texas Health Science Center at Houston · US

Funding

Hyper-oxygenation, oxidative stress, and kidney injury following cardiac surgeryR01GM112871 · NIGMS · VANDERBILT UNIVERSITY MEDICAL CENTER · PI BILLINGS, FREDERIC TREMAINE · 2015 to 2019
$1.8M
Mitochondrial dysfunction, oxidative stress, and surgical acute kidney injuryK23GM102676 · NIGMS · VANDERBILT UNIVERSITY MEDICAL CENTER · PI BILLINGS, FREDERIC TREMAINE · 2012 to 2016
$808k
Perioperative Oxygenation, Endothelial Dysfunction, and Organ Injury in Cardiac SurgeryK23GM129662 · NIGMS · VANDERBILT UNIVERSITY MEDICAL CENTER · PI LOPEZ, MARCOS G · 2018 to 2022
$764k
NHLBI NIH HHS L30 HL133985NIGMS NIH HHS K23 GM102676NIGMS NIH HHS K23 GM129662NIGMS NIH HHS R01 GM112871
6 · The paper itself

Abstract

backgroundIncreased intravascular volume has been associated with protection from acute kidney injury (AKI), but in patients with congestive heart failure, venous congestion is associated with increased AKI. We tested the hypothesis that intraoperative venous congestion is associated with AKI after cardiac surgery.

methodsIn patients enrolled in the Statin AKI Cardiac Surgery trial, venous congestion was quantified as the area under the curve (AUC) of central venous pressure (CVP) >12, 16, or 20 mm Hg during surgery (mm Hg min). AKI was defined using Kidney Disease Improving Global Outcomes (KDIGO) criteria and urine concentrations of tissue inhibitor of metalloproteinase-2 and insulin-like growth factor binding protein 7 ([TIMP-2]⋅[IGFBP7]), a marker of renal stress. We measured associations between venous congestion, AKI and [TIMP-2]⋅[IGFBP7], adjusted for potential confounders. Values are reported as median (25th-75th percentile).

resultsBased on KDIGO criteria, 104 of 425 (24.5%) patients developed AKI. The venous congestion AUCs were 273 mm Hg min (81-567) for CVP >12 mm Hg, 66 mm Hg min (12-221) for CVP >16 mm Hg, and 11 mm Hg min (1-54) for CVP >20 mm Hg. A 60 mm Hg min increase above the median venous congestion AUC above each threshold was independently associated with increased AKI (odds ratio=1.06; 95% confidence interval [CI], 1.02-1.10; P=0.008; odds ratio=1.12; 95% CI, 1.02-1.23; P=0.013; and odds ratio=1.30; 95% CI, 1.06-1.59; P=0.012 for CVP>12, >16, and >20 mm Hg, respectively). Venous congestion before cardiopulmonary bypass was also associated with increased [TIMP-2]⋅[IGFBP7] measured during cardiopulmonary bypass and after surgery, but neither venous congestion after cardiopulmonary bypass nor venous congestion throughout surgery was associated with postoperative [TIMP-2]⋅[IGFBP7].

conclusionIntraoperative venous congestion was independently associated with increased AKI after cardiac surgery.

Indexed as

Central Venous PressureAcute Kidney InjuryAgedCardiac Surgical ProceduresCohort StudiesFemaleHumansHyperemiaIntraoperative PeriodMaleProspective StudiesRisk FactorsTreatment Outcomeacute kidney injurycardiac surgerycentral venous pressureurine biomarkersvenous congestion

Identifiers

PMID33549321
PMCPMC8014941
OpenAlexW3128743983

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.