Publications by authors named "M Heifets"

Background And Objectives: Renal transplant recipients with pre-existing diabetes (PD) have reduced graft survival and increased risk of mortality and ischemic heart disease compared with nondiabetic transplant recipients. To assess the effect of belatacept in this high-risk group, we evaluated outcomes of the subpopulation with PD from previously published BENEFIT and BENEFIT-EXT trials.

Design, Setting, Participants, & Measurements: A post hoc analysis evaluated pooled data from BENEFIT (living donors or standard criteria donors) and BENEFIT-EXT (extended criteria donors).

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Background And Objectives: Nonadherence to oral immunosuppressive drugs in renal transplant patients remains a major challenge. The objective of this study was to develop an adherence-exposure model that 1) quantifies the impact of nonadherence patterns on cyclosporine levels and 2) identifies nonadherence patterns that are associated with unfavorable transplantation outcomes.

Design, Setting, Participants, And Measurements: This model quantified variability in drug exposure, expressed as the coefficient of variation (CV%), for time-averaged and trough cyclosporine levels (C(avg) and C(min), respectively), and percentage of days spent below the therapeutic C(min) target.

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Background: Kidneys from deceased donors with acute renal failure (ARF) are generally not accepted for transplantation because of the expected poor outcome. This prospective study examined the utilization of kidneys from donors with ARF for transplantation and the outcomes.

Methods: Fifty-five kidneys from donors with ARF were transplanted.

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Background: Chronic steroid therapy in spite of myriad side effects is widely used in kidney transplantation. This prospective controlled study evaluated safety and efficacy of steroid withdrawal at 2 days in kidney recipients monitored by surveillance biopsy.

Methods: In all, 300 kidney recipients were studied; 150 in second-day steroid withdrawal group and 150 in steroid treated group (control group).

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Background: Chronic steroid therapy in kidney transplantation has myriad side effects and steroid avoidance has become feasible. This prospective study compared the safety and efficacy of steroid avoidance in tacrolimus (TAC)/mycophenolate mofetil (MMF) and TAC/sirolimus (SRL) combinations in kidney transplantation.

Methods: In all, 150 kidney recipients were analyzed: 75 each in TAC/MMF and TAC/SRL groups.

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