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[Graft vascular disease. Its pathogenesis and diagnosis]
R Muñoz Aguilera1, J A García Robles, J Palomo Alvarez
1Departamento de Cardiología, Hospital General Universitario Gregorio Marañón, Madrid.
Insights
Transplant coronary artery disease (EVI) is a major cause of death in heart transplant recipients. Diagnosis is challenging due to its diffuse nature, with intracoronary ultrasound showing promise for early detection.
Area of Science:
- Cardiology
- Immunology
- Transplantation
Context:
- Transplant coronary artery disease (EVI) is the primary cause of late mortality in cardiac transplant patients.
- The exact pathogenesis of EVI remains undetermined, likely involving complex immunological and non-immunological interactions.
- EVI's diffuse morphology complicates early diagnosis using non-invasive methods.
Purpose:
- To review the current understanding of transplant coronary artery disease (EVI) pathogenesis, diagnosis, and prognostic indicators.
- To evaluate the diagnostic capabilities of various methods, including coronary angiography and intracoronary ultrasound (IVUS).
- To highlight the need for further research into endothelial dysfunction and coronary flow reserve for EVI evaluation.
Summary:
- EVI is the leading cause of late mortality post-cardiac transplant, with pathogenesis not fully elucidated but likely involving immune and non-immune factors.
- Coronary angiography has limited sensitivity for early EVI detection but holds prognostic value.
- Intracoronary ultrasound (IVUS) demonstrates high sensitivity for detecting subclinical EVI lesions, correlating well with histology, though its prognostic significance requires further study.
Impact:
- Improved diagnostic strategies for EVI could lead to earlier intervention and better patient outcomes.
- Further research may clarify the role of immunological factors in EVI development and progression.
- Establishing the utility of endothelial dysfunction and coronary flow reserve tests could enhance EVI monitoring and management.
Abstract:
Transplant coronary artery disease (EVI) is still the leading cause of late mortality in cardiac transplant patients. The pathogenesis is not determined yet. Probably the basic mechanism is immunological but the subsequent development and progression of the disease depend on the interaction of immunological and nonimmunological factors. Its typical diffuse morphology and its behavior make difficult the diagnosis with non invasive methods. Coronary angiography is not sensitive for an early diagnosis of EVI but its detection has prognostic value. Intracoronary ultrasound (IVUS) is very sensitive to detect angiographically silent lesions, and has correlated well with histological findings. Its prognostic value is still being evaluated. More studies are needed to establish the usefulness of endothelial dysfunction and coronary flow reserve tests in the evaluation of EVI.