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Cardiogenic shock and coronary endothelial dysfunction predict cardiac allograft vasculopathy after heart
Silvia Lopez-Fernandez1, Nicolas Manito-Lorite, Joan Antoni Gómez-Hospital
1Àrea de Malalties del Cor, Bellvitge University Hospital, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain; Department of Cardiology, Virgen de las Nieves University Hospital, FIBAO, Granada, Spain.
Insights
Cardiac allograft vasculopathy, a major cause of heart transplant death, is predicted by cardiogenic shock during transplant, early endothelial dysfunction, and older donor age. Aggressive prevention is crucial for high-risk patients.
Area of Science:
- Cardiology
- Transplantation Immunology
Background:
- Cardiac allograft vasculopathy (CAV) is a leading cause of mortality after heart transplantation.
- The multifactorial etiology and challenging prevention of CAV necessitate further research.
Purpose of the Study:
- To prospectively identify factors predicting the development of cardiac allograft vasculopathy in heart transplant recipients.
- To evaluate early indicators and long-term outcomes related to CAV.
Main Methods:
- A prospective study involving 179 heart transplant patients.
- Coronary angiography and endothelial function assessment at 3 months post-transplant.
- Repeat coronary angiography at a 5-year follow-up.
Main Results:
- 43% of patients developed CAV by 5-year follow-up, with 26% experiencing severe forms.
- Independent predictors identified: cardiogenic shock during transplant (OR: 6.49), early coronary endothelial dysfunction (OR: 3.9), and older donor age (OR: 1.05).
- Cardiogenic shock emerged as a novel predictor for CAV development.
Conclusions:
- Cardiogenic shock at transplantation, early endothelial dysfunction, and older donor age are key predictors of CAV.
- High-risk patient subgroups require earlier and more aggressive preventive strategies, including managing cardiovascular risk factors and utilizing novel immunosuppressants like mTOR inhibitors.
Abstract:
Cardiac allograft vasculopathy remains one of the major causes of death post-heart transplantation. Its etiology is multifactorial and prevention is challenging. The aim of this study was to prospectively determine factors related to cardiac allograft vasculopathy after heart transplantation. This research was planned on 179 patients submitted to heart transplant. Performance of an early coronary angiography with endothelial function evaluation was scheduled at three-month post-transplant. Patients underwent a second coronary angiography after five-yr follow-up. At the 5- ± 2-yr follow-up, 43% of the patients had developed cardiac allograft vasculopathy (severe in 26% of them). Three independent predictors of cardiac allograft vasculopathy were identified: cardiogenic shock at the time of the transplant operation (OR: 6.49; 95% CI: 1.86-22.7, p = 0.003); early coronary endothelial dysfunction (OR: 3.9; 95% CI: 1.49-10.2, p = 0.006), and older donor age (OR: 1.05; 95% CI: 1.00-1.10, p = 0.044). Besides early endothelial coronary dysfunction and older donor age, a new predictor for development of cardiac allograft vasculopathy was identified: cardiogenic shock at the time of transplantation. In these high-risk patient subgroups, preventive measures (treatment of cardiovascular risk factors, use of novel immunosuppressive agents such as mTOR inhibitors) should be earlier and much more aggressive.
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