Related Experiment Video
Updated: Jun 9, 2025
Using En Face Immunofluorescence Staining to Observe Vascular Endothelial Cells Directly
Published on: August 20, 2019
The Crucial Triad: Endothelial Glycocalyx, Oxidative Stress, and Inflammation in Cardiac Surgery-Exploring the
Božena Ćurko-Cofek1, Matej Jenko2,3, Gordana Taleska Stupica2
1Department of Physiology, Immunology and Pathophysiology, Faculty of Medicine, University of Rijeka, Braće Branchetta 20, 51000 Rijeka, Croatia.
Insights
Cardiac surgery triggers inflammation and oxidative stress, damaging the endothelial glycocalyx (EG). Understanding these mechanisms is crucial for preventing organ dysfunction and improving patient recovery after heart surgery.
Area of Science:
- Cardiovascular Surgery
- Inflammation and Immunology
- Endothelial Biology
Background:
- Cardiac surgery, often using cardiopulmonary bypass, is associated with significant inflammatory responses and organ dysfunction.
- Systemic inflammatory response and oxidative stress are triggered by various factors during cardiac surgery, impacting patient outcomes.
- Endothelial dysfunction, particularly the degradation of the endothelial glycocalyx (EG), is a key complication.
Purpose of the Study:
- To review the current knowledge on molecular mechanisms of endothelial dysfunction after cardiac surgery.
- To detail the inflammatory and oxidative stress responses and their interaction with the endothelial glycocalyx (EG).
- To discuss the clinical implications of these events and highlight the need for improved patient management strategies.
Main Methods:
- Literature review focusing on molecular mechanisms of endothelial dysfunction post-cardiac surgery.
- Analysis of inflammatory pathways and oxidative stress markers.
- Examination of the role and degradation of endothelial glycocalyx (EG) in cardiac surgery.
Main Results:
- Cardiac surgery induces a systemic inflammatory response and oxidative stress, leading to endothelial dysfunction.
- The endothelial glycocalyx (EG) is a primary target, and its degradation contributes to vascular complications.
- Interactions between inflammation, oxidative stress, and EG degradation are complex and clinically significant.
Conclusions:
- A comprehensive understanding of the molecular mechanisms underlying endothelial dysfunction post-cardiac surgery is essential.
- Targeting inflammation, oxidative stress, and EG protection may offer strategies to mitigate organ dysfunction.
- Improved patient management and novel therapeutic approaches are needed to reduce adverse outcomes following heart surgery.
Abstract:
Since its introduction, the number of heart surgeries has risen continuously. It is a high-risk procedure, usually involving cardiopulmonary bypass, which is associated with an inflammatory reaction that can lead to perioperative and postoperative organ dysfunction. The extent of complications following cardiac surgery has been the focus of interest for several years because of their impact on patient outcomes. Recently, numerous scientific efforts have been made to uncover the complex mechanisms of interaction between inflammation, oxidative stress, and endothelial dysfunction that occur after cardiac surgery. Numerous factors, such as surgical and anesthetic techniques, hypervolemia and hypovolemia, hypothermia, and various drugs used during cardiac surgery trigger the development of systemic inflammatory response and the release of oxidative species. They affect the endothelium, especially endothelial glycocalyx (EG), a thin surface endothelial layer responsible for vascular hemostasis, its permeability and the interaction between leukocytes and endothelium. This review highlights the current knowledge of the molecular mechanisms involved in endothelial dysfunction, particularly in the degradation of EG. In addition, the major inflammatory events and oxidative stress responses that occur in cardiac surgery, their interaction with EG, and the clinical implications of these events have been summarized and discussed in detail. A better understanding of the complex molecular mechanisms underlying cardiac surgery, leading to endothelial dysfunction, is needed to improve patient management during and after surgery and to develop effective strategies to prevent adverse outcomes that complicate recovery.
More Related Videos
Related Concept Videos
01:26Coronary Artery Disease II: Pathophysiology
01:30Coronary Artery Disease I: Introduction