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Factors predicting 10-year survival after heart transplantation
Branislav Radovancevic1, Cuneyt Konuralp, Bojan Vrtovec
1Department of Cardiopulmonary Transplantation, Texas Heart Institute at St. Luke's Episcopal Hospital, Houston, TX 77225, USA. bradovancevic@heart.thi.tmc.edu
Summary
Factors like pre-transplant diabetes, donor age, and early post-heart transplant (HTx) infections and rejections predict long-term survival. Managing these can improve outcomes for HTx patients.
Area of Science:
- Cardiology
- Transplantation Medicine
- Immunology
Background:
- Identifying predictors of long-term survival is crucial for heart transplant (HTx) recipients.
- Understanding factors influencing outcomes beyond 10 years post-transplant is essential for patient management.
Purpose of the Study:
- To identify factors predictive of long-term (>10-year) survival in heart transplant recipients.
- To compare characteristics and outcomes of long-term survivors with those with intermediate-term mortality.
Main Methods:
- Retrospective analysis of 415 adult heart transplant recipients (August 1982 - May 1997).
- Comparison of 158 patients surviving >10 years (Group A) with 116 patients who died between 2-6 years (Group B).
- Evaluation of clinical, demographic, immunological, and post-transplant factors including infections, rejection, diabetes, and donor age.
Main Results:
- Long-term survivors (Group A) had significantly fewer post-HTx rejection episodes and infections (bacterial, viral, fungal) compared to Group B.
- Group A also exhibited lower mean donor age, reduced pre-HTx diabetes incidence, and lower cholesterol levels at 1 year post-HTx.
- Multivariate analysis identified fewer bacterial infections, fewer rejection episodes, absence of pre-HTx diabetes, and lower donor age as significant predictors of longer survival.
Conclusions:
- Pre-transplant diabetes, donor age, and early post-transplant infection and rejection incidences are key predictors of long-term (>10-year) survival.
- Improved management and control of infections and rejection episodes within the first two years post-transplant may enhance long-term patient survival.