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Recipient selection in cardiac transplantation: contraindications and risk factors for mortality
Thomas R Cimato1, Mariell Jessup
1Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Insights
Heart transplantation (HTx) is a key treatment for severe heart failure. This review examines evolving risk factors and controversial criteria for HTx candidacy, highlighting the need for objective patient selection tools.
Area of Science:
- Cardiology
- Transplantation Medicine
- Medical Ethics
Background:
- Heart transplantation (HTx) remains the definitive treatment for end-stage heart failure.
- Selection criteria for HTx recipients have evolved over the past decade, informed by risk factor analysis for mortality.
- Studies have evaluated specific risk factors like advanced age, diabetes, and sex in HTx candidates.
Purpose of the Study:
- To review and identify controversial variables in heart transplant candidate selection.
- To highlight changes in contraindications for HTx from absolute to relative.
- To provide guidance for clinicians in assessing patient candidacy for HTx.
Main Methods:
- Review of existing literature and consensus opinions on HTx selection criteria.
- Analysis of single-center and multi-center database reviews.
- Evaluation of studies assessing specific risk factors for transplant.
Main Results:
- Identification of ongoing controversies in heart transplant candidate selection.
- Documentation of variables that have shifted from absolute to relative contraindications.
- Recognition of the need for improved risk assessment tools for HTx.
Conclusions:
- A more formalized and objective scale is necessary for selecting heart transplant patients.
- Improved instruments are needed to triage patients effectively as alternative therapies emerge.
- Current guidelines require refinement to address evolving risk factors and treatment landscapes.
Abstract:
Currently the only acknowledged, definitive treatment for refractory heart failure is heart transplantation (HTx). During the past 10 years, selection criteria for heart transplant recipients have been developed that use an analysis of risk factors associated with mortality, which were identified by consensus opinion and by single-center and multi-center database review. A number of other studies also have been designed to evaluate specific risk factors for transplant such as advanced age, diabetes, and sex. This review identifies variables that continue to provoke controversy during the candidate selection process or variables that have changed from absolute to relative contraindications for HTx. Clinicians may use the data summarized in this review as a guide to making decisions about patient candidacy for HTx. One could conclude from this analysis that a more formalized and objective scale to select patients and to assess risk of death after HTx is necessary. Moreover, as alternative therapies to HTx become reality, a better instrument for triaging patients to one form of therapy or another may be necessary.