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Updated: Jul 6, 2026
Murine Heterotopic Heart Transplant Technique
Published on: July 8, 2014
[Clinicopathologic analysis of dilated heart in cardiac transplant recipients]
Feng-Ying Lü1, Lai-Feng Song, Lei Liu
1Department of Pathology, Cardiovascular Institute and Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China. lvfengyingxl@sina.com
Insights
Pathologic examination of cardiac transplant recipient hearts reveals significant diagnostic discrepancies. Autopsy findings are crucial for accurate classification of cardiomyopathies and improving patient care.
Area of Science:
- Cardiovascular Pathology
- Transplant Medicine
- Cardiac Histology
Context:
- Cardiac transplantation is a life-saving procedure for end-stage heart failure.
- Recipient hearts undergo significant pathologic changes post-transplant.
- Accurate diagnosis of cardiac conditions in transplant recipients is vital for management.
Purpose:
- To investigate the pathologic characteristics of dilated hearts in cardiac transplant recipients.
- To correlate clinicoradiologic findings with pathologic diagnoses.
- To identify discrepancies between clinical and pathologic diagnoses.
Summary:
- A study of 60 cardiac transplant recipient hearts analyzed gross, histologic, and electron microscopic features.
- Dilated cardiomyopathy (52.5%), arrhythmogenic right ventricular cardiomyopathy (22.5%), and ischemic cardiomyopathy (15%) were primary causes of dilation.
- A 37.5% discrepancy rate between clinical and pathologic diagnoses was observed, highlighting the need for detailed pathologic analysis.
Impact:
- Pathologic examination is essential for accurate diagnosis in cardiac transplant recipients.
- Identifying specific cardiomyopathies like arrhythmogenic right ventricular cardiomyopathy and giant cell myocarditis improves clinical management.
- This study underscores the importance of integrating pathologic findings with clinical data to resolve diagnostic uncertainties.
Objective:
To study the pathologic features of dilated heart in cardiac transplant recipients, with clinicoradiologic correlation.
Methods:
Sixty recipient hearts from cardiac transplantation performed in Fuwai Hospital were analyzed by gross examination, histologic observation and electron microscopy. Clinicoradiologic correlation was available in 40 cases.
Results:
Amongst the 40 cases of dilated heart, 52.5% (21/40) were due to dilated cardiomyopathy, 22.5% (9/40) due to arrhythmogenic right ventricular cardiomyopathy, 15.0% (6/40) due to ischemic cardiomyopathy, and the remaining 10.0% (4/40) due to miscellaneous causes, including local noncompaction of ventricular myocardium, giant cell myocarditis, alcoholic cardiomyopathy and hypertensive cardiomyopathy. The discrepancy rate between clinical and pathologic diagnosis was 37.5% (15/40). The erroneous categories included arrhythmogenic right ventricular cardiomyopathy (7 cases), ischemic cardiomyopathy (5 cases), and giant cell myocarditis (1 case), which were all mistaken clinically as dilated cardiomyopathy. While ischemic cardiomyopathy, arrhythmogenic right ventricular cardiomyopathy, noncompaction of ventricular myocardium and giant cell myocarditis have distinctive pathologic features, the diagnosis of alcoholic and hypertensive cardiomyopathies required clinicopathologic correlation. Dilated cardiomyopathy due to viral myocarditis was not identified in the cases studied.
Conclusion:
Pathologic examination is essential in analysis of transplant recipient heart and helps to rectify clinical diagnostic discrepancy.
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