Evidence map›Paper›PMID 25249983›Full record

ArticleFrontiers in physiology2014

Hemolysis during cardiac surgery is associated with increased intravascular nitric oxide consumption and perioperative kidney and intestinal tissue damage.

Iris C Vermeulen Windsant, Norbert C J de Wit, Jonas T C Sertorio, Annemarie A van Bijnen, Yuri M Ganushchak, John H Heijmans, Jose E Tanus-Santos, Michael J Jacobs, Jos G Maessen, Wim A Buurman

Registry-linked trialAbstract read
In one paragraph

Article in Frontiers in physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02940327 (A Feasibility Study to Consider the Relationship Between Markers of Red Cell Damage, Inflammation and the Recovery Process of Newborns Requiring Extracorporeal Membrane Oxygenation), which is not on this map. Cited by 67 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed, 3 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.

NCT02940327 completednot on this mapstarted 2016, after this paper: background citation

A Feasibility Study to Consider the Relationship Between Markers of Red Cell Damage, Inflammation and the Recovery Process of Newborns Requiring Extracorporeal Membrane Oxygenation (ECMO) for Persistent Pulmonary Hypertension of the Newborn (PPHN): Mi-ECMO

TypeobservationalSponsorUniversity of LeicesterRan2016 to 2017Enrolled24ConditionsPersistent Pulmonary Hypertension of the Newborn
3 · Its place in the literature

Who cites it

67 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Kidney protection during surgery on the thoracoabdominal aorta: a systematic review.Interdisciplinary cardiovascular and thoracic surgery · 2025
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  9. Hemolysis Detected Following the Preparation and Collection of Blood in a Porcine Model Using a Syringe-Based Aspiration Thrombectomy System for Autotransfusion.Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions · 2026
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  18. Subsequent kidney transplant after pediatric heart transplant: Prevalence and risk factors.American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons · 2024
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7 more citing papers are in PubMed but not listed here.

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

10 authors.

Iris C Vermeulen WindsantDepartment of Surgery, Maastricht University Medical Center Maastricht, Netherlands ; NUTRIM School for Nutrition, Toxicology & Metabolism, Maastricht University Medical Center Maastricht, Netherlands.
Norbert C J de WitCentral Diagnostic Laboratory, Maastricht University Medical Center Maastricht, Netherlands.
Jonas T C SertorioDepartment of Pharmacology, Ribeirao Preto Medical School, University of Sao Paolo Ribeirao Preto, Brazil.
Annemarie A van BijnenDepartment of Surgery, Maastricht University Medical Center Maastricht, Netherlands ; NUTRIM School for Nutrition, Toxicology & Metabolism, Maastricht University Medical Center Maastricht, Netherlands.
Yuri M GanushchakDepartment of Extracorporeal Circulation, Maastricht University Medical Center Maastricht, Netherlands.
John H HeijmansDepartment of Anesthesiology, Maastricht University Medical Center Maastricht, Netherlands.
Jose E Tanus-SantosDepartment of Pharmacology, Ribeirao Preto Medical School, University of Sao Paolo Ribeirao Preto, Brazil.
Michael J JacobsDepartment of Surgery, Maastricht University Medical Center Maastricht, Netherlands ; Cardiovascular Research Institute Maastricht, Maastricht University Medical Center Maastricht, Netherlands ; Department of Vascular Surgery, European Vascular Center Aachen-Maastricht, University Hospital Aachen Aachen, Germany.
Jos G MaessenCardiovascular Research Institute Maastricht, Maastricht University Medical Center Maastricht, Netherlands ; Department of Cardiothoracic Surgery, Maastricht University Medical Center Maastricht, Netherlands.
Wim A BuurmanDepartment of Surgery, Maastricht University Medical Center Maastricht, Netherlands ; Central Diagnostic Laboratory, Maastricht University Medical Center Maastricht, Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionAcute kidney injury (AKI) and intestinal injury negatively impact patient outcome after cardiac surgery. Enhanced nitric oxide (NO) consumption due to intraoperative intravascular hemolysis, may play an important role in this setting. This study investigated the impact of hemolysis on plasma NO consumption, AKI, and intestinal tissue damage, after cardiac surgery.

methodsHemolysis (by plasma extracellular (free) hemoglobin; fHb), plasma NO-consumption, plasma fHb-binding capacity by haptoglobin (Hp), renal tubular injury (using urinary N-Acetyl-β-D-glucosaminidase; NAG), intestinal mucosal injury (through plasma intestinal fatty acid binding protein; IFABP), and AKI were studied in patients undergoing off-pump cardiac surgery (OPCAB, N = 7), on-pump coronary artery bypass grafting (CABG, N = 30), or combined CABG and valve surgery (CABG+Valve, N = 30).

resultsFHb plasma levels and NO-consumption significantly increased, while plasma Hp concentrations significantly decreased in CABG and CABG+Valve patients (p < 0.0001) during surgery. The extent of hemolysis and NO-consumption correlated significantly (r (2) = 0.75, p < 0.0001). Also, NAG and IFABP increased in both groups (p < 0.0001, and p < 0.001, respectively), and both were significantly associated with hemolysis (R s = 0.70, p < 0.0001, and R s = 0.26, p = 0.04, respectively) and NO-consumption (Rs = 0.55, p = 0.002, and R s = 0.41, p = 0.03, respectively), also after multivariable logistic regression analysis. OPCAB patients did not show increased fHb, NO-consumption, NAG, or IFABP levels. Patients suffering from AKI (N = 9, 13.4%) displayed significantly higher fHb and NAG levels already during surgery compared to non-AKI patients.

conclusionsHemolysis appears to be an important contributor to postoperative kidney injury and intestinal mucosal damage, potentially by limiting NO-bioavailability. This observation offers a novel diagnostic and therapeutic target to improve patient outcome after cardiothoracic surgery.

Indexed as

acute kidney injurycardiopulmonary bypasshemolysisintestinal fatty acid binding proteinnitric oxide

Identifiers

PMID25249983
PMCPMC4157603

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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.