THE REPETITIVE HISTOLOGIC PATTERN OF VASCULAR CARDIAC ALLOGRAFT REJECTION

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Abstract
While vascular cardiac allograft rejection increases morbidity and mortality following transplantation, factors predisposing to its development have not been completely elucidated. To evaluate the influence of the duration of early rejection prophylaxis with the murine monoclonal anti-CD3 antibody (OKT3) on the development of a repetitive histologic pattern of vascular cardiac allograft rejection, endomyocardial biopsies from 344 heart transplant recipients were prospectively evaluated. The influence of clinical characteristics was assessed. Eighty-three patients (24%) developed and 261 patients (76%) did not develop a repetitive histologic pattern of vascular cardiac allograft rejection. The vascular rejection pattern was more common in patients with a positive crossmatch (89% versus 11%, P