Surrogate markers of rejection

Current Opinion in Organ Transplantation
Bethany A Austin, David O Taylor

Abstract

There is continued interest in defining viable noninvasive alternatives to endomyocardial biopsy (EMB) for monitoring recipients of orthotopic heart transplantation for episodes of rejection. This review summarizes the evidence of clinical utility for both available and emerging surrogate markers of rejection. A variety of imaging modalities and peripheral biomarkers has been evaluated for this purpose and to date have had inadequate accuracy to replace EMB. Gene expression profile analysis is the most promising complementary technology to emerge, but there is insufficient clinical trial evidence at this time to allow gene expression profile as a substitution for EMB in all but a select group of patients. The gold standard at this time for routine surveillance of orthotopic heart transplantation rejection remains EMB. However, on the basis of recent clinical trial results, gene expression profile analysis appears to be a useful adjunctive tool in monitoring for rejection and may permit a significant reduction in the frequency of EMB in low-risk patients.

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Nov 23, 2013·The Journal of Heart and Lung Transplantation : the Official Publication of the International Society for Heart Transplantation·Michel WhiteRhian M Touyz
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