Acute rejection is higher in VCA than in any other organ in the field of transplantation, although most episodes are controlled by high-dose steroids and optimization of maintenance immunosuppression. Because of limitations in patient number and the duration of follow-up, the long-term safety and effectiveness of VCA remain unclear. Moreover, the tests currently used to diagnose acute rejection are of limited value. Better diagnostic tools and a better understanding of the immunologic events during acute rejection are therefore needed to improve diagnosis, treatment and outcomes of this life-changing restorative surgery.
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Fischer et al. (2014) studied this question.
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