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Pathology of heart transplant through endomyocardial biopsy
F J Pardo-Mindán1, M D Lozano, F Contreras-Mejuto
1Department of Pathology, Clínica Universitaria, Universidad de Navarra, Pamplona, Spain.
Insights
This study details heart transplant complications and survival rates. Orthotopic heart transplant recipients showed high survival, with 91% at 1 year and 88% at 5 years.
Area of Science:
- Cardiology
- Transplant Surgery
- Pathology
Background:
- Cardiac transplantation is a vital treatment for end-stage heart disease.
- Understanding post-transplant complications is crucial for patient outcomes.
Purpose of the Study:
- To describe morphological features of acute and chronic rejection in heart transplants.
- To document other complications, including infections and malignancies.
- To report patient survival rates after orthotopic heart transplantation.
Main Methods:
- Analysis of 1,564 biopsies and 11 autopsies from 105 orthotopic heart transplants.
- Morphological assessment of rejection and other post-transplant complications.
- Actuarial survival analysis.
Main Results:
- Detailed description of morphological features for acute rejection grading.
- Identification of chronic rejection, "Quilty" effect, fibrosis, hypertrophy, calcification, infections (CMV, toxoplasmosis), and malignancies (lymphomas).
- Actuarial survival rates of 91% at 1 year and 88% at 5 years post-transplant.
Conclusions:
- Comprehensive morphological characterization of heart transplant complications is presented.
- High patient survival rates are achievable with orthotopic heart transplantation.
- Histopathological monitoring is essential for managing heart transplant recipients.
Abstract:
Cardiac transplantation is most effective method for treatment of patients with end-stage heart disease. We present the experience of our institution with 1,564 biopsies and 11 autopsies of 105 orthotopic heart transplants. This report describes the morphological features and the grading systems of acute rejection. Also, we present the morphological characteristics of other complications of heart transplants such as chronic rejection, "Quilty" effect, interstitial fibrosis, heart hypertrophy, previous biopsy sites, calcification, cytomegalovirus infections, toxoplasmosis, and the appearance of malignancies, mainly, lymphomas. Actuarial survival of patients is 91% and 88% at 1 and 5 years' posttransplant, respectively.