Related Experiment Video
Updated: Apr 15, 2026
08:16
Neonatal Cardiac Scaffolds: Novel Matrices for Regenerative Studies
Published on: November 5, 2016
8.2K
Collagen content and distribution in the normal and transplanted human heart: A postmortem quantitative light
R J van Suylen1, E E van Bekkum1, H Boersma2
1From the Department of Pathology, Erasmus University, Rotterdam Netherlands.
Summary
Right ventricular biopsies in heart transplant patients accurately reflect overall myocardial collagen. This finding supports using biopsies to analyze left ventricular dysfunction causes and interstitial fibrosis development.
Area of Science:
- Cardiovascular Pathology
- Transplantation Medicine
- Myocardial Histology
Background:
- Endomyocardial biopsies are crucial for assessing heart transplant patient myocardial function.
- The reliability of right ventricular biopsies in representing the entire myocardium's interstitial composition is under investigation.
- Understanding myocardial interstitial changes is key to managing post-transplant complications.
Purpose of the Study:
- To evaluate if collagen content in right ventricular endomyocardial biopsies represents the entire myocardium in normal and transplanted hearts.
- To determine if myocardial collagen content changes with post-transplantation survival time.
- To identify factors contributing to interstitial myocardial fibrosis development.
Main Methods:
- Sirius red staining of transmural sections from right and left ventricles and interventricular septum.
- Quantification of collagen in subendocardial and central myocardial regions using digital image analysis.
- Correlation analysis of collagen content between biopsy sites and entire myocardium, and with survival time.
Main Results:
- In normal hearts, right ventricular biopsy sites partially represent myocardial collagen, but not the left ventricle.
- In transplanted hearts, right ventricular biopsy collagen content strongly correlates with the entire myocardium's collagen.
- Increased collagen in transplanted hearts is primarily in the left ventricular free wall and correlates with survival time.
Conclusions:
- Right ventricular endomyocardial biopsies are valuable for assessing myocardial collagen in heart transplant recipients.
- Biopsy findings can aid in analyzing the causes of left ventricular dysfunction in transplanted hearts.
- Post-transplantation survival time is linked to increased myocardial collagen, particularly in the left ventricle.
