Publications by authors named "A DeMattos"

The management of a kidney transplant program has evolved significantly in the last decades to become a highly specialized, multidisciplinary standard of care for end-stage kidney disease. Transplant center job descriptions have similarly morphed with increasing responsibilities to address a more complex patient mix, increasing medical and surgical therapeutic options, and increasing regulatory burden in the face of an ever-increasing organ shortage. Within this evolution, the role of the Kidney Transplant Medical Director (KTMD) has expanded beyond the basic requirements described in the United Network for Organ Sharing bylaws.

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Chronic kidney disease (CKD) affects approximately 13% of the U.S. population and is associated with increased risk of cardiovascular complications.

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We undertook a study to ascertain the relationship between the presence of CD20-positive B-lymphocytes in renal allografts undergoing acute cellular rejection and graft survival. We identified 27 patients transplanted between January 1, 1998 and December 31, 2001, with biopsy-proven Banff 1-A or Banff 1-B rejection in the first year after transplantation, and stained the specimens for CD20 and C4d. At least 4 years of follow-up data were available for each patient studied.

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The decade of the 1990s saw an improvement in cadaveric renal graft function and dramatic reduction in the acute rejection (AR) rate. The purpose of this study was to determine whether the reduction in rejection rate was the primary cause of the improvement in graft function seen and whether this improved long-term graft survival. All adult patients who received a cadaver renal transplant between 1991 and 2000 and had graft survival of at least 6 mo and complete data for creatinine at 6 mo, HLA mismatch, delayed graft function, and acute rejection (AR) were identified in the United Network for Organ Sharing database.

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