Association between circulating biomarkers of endothelial glycocalyx degradation and postoperative acute kidney injury in patients undergoing cardiac surgery with cardiopulmonary bypass - Report - MDSpire

Association between circulating biomarkers of endothelial glycocalyx degradation and postoperative acute kidney injury in patients undergoing cardiac surgery with cardiopulmonary bypass

  • By

  • Minhuan Wang

  • Min He

  • Liyun Hong

  • Yafang Shen

  • Qin Wang

  • Yan Sun

  • July 13, 2026

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Clinical Report: Link Between Circulating Biomarkers of Endothelial Glycocalyx Breakdown and Postoperative Acute Kidney Injury in Cardiac Surgery Patients Undergoing Cardiopulmonary Bypass

Overview

This study investigates the association between biomarkers of endothelial glycocalyx degradation and postoperative acute kidney injury (AKI) in cardiac surgery patients.

Background

Postoperative acute kidney injury is a significant complication following cardiac surgery, particularly with cardiopulmonary bypass. Identifying biomarkers that can predict renal risk is crucial.

Data Highlights

ParameterAKI Group (n=43)Non-AKI Group (n=109)
Incidence of AKI28.3%71.7%
AgeOlderYounger
Baseline Renal FunctionWorseBetter
Cardiopulmonary Bypass TimeLongerShorter
Aortic Clamp TimeLongerShorter
Syndecan-1 LevelsHigherLower
Heparan Sulfate LevelsHigherLower

Key Findings

  • Postoperative AKI occurred in 28.3% of patients undergoing cardiac surgery with cardiopulmonary bypass.
  • Patients with AKI were older and had worse baseline renal function.
  • Syndecan-1 and heparan sulfate levels increased significantly from baseline to the end of cardiopulmonary bypass, particularly in the AKI group.
  • Multivariable analysis identified older age, longer aortic clamp time, and higher syndecan-1 levels as associated with postoperative AKI.
  • Syndecan-1 demonstrated the best discriminatory performance for predicting AKI with an area under the curve of 0.743.

Clinical Implications

Monitoring circulating biomarkers of endothelial glycocalyx degradation may assist in identifying patients at higher risk for postoperative AKI.

Conclusion

The study highlights the potential role of glycocalyx degradation biomarkers in predicting postoperative acute kidney injury in cardiac surgery patients.

Related Resources & Content

  1. Intensive Care Medicine, 2025 -- Strategies for Preventing Postoperative Acute Kidney Injury
  2. Clinical Research in Cardiology, 2025 -- Influence of Reduced Kidney Function on the Dynamics of High-Sensitivity Cardiac Troponin Levels After Cardiac Surgery
  3. Frontiers in Immunology, 2026 -- Pathological triad of perioperative acute kidney injury: renal microcirculatory hypoxia, mitochondrial damage, and immuno-metabolic reprogramming
  4. Frontiers in Cardiovascular Medicine, 2026 -- Microcirculation dysfunction and cardioprotection in cardiac surgery with cardiopulmonary bypass: mechanisms, monitoring, and therapeutic strategies
  5. KDIGO 2026 Acute Kidney Injury/Acute Kidney Disease Guideline Draft
  6. KDIGO 2026 Acute Kidney Injury/Acute Kidney Disease Guideline Draft

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