Diltiazem Böbrek Alıcılarında Greft Fonksiyonlarını İyileştirir mi?

Abstract

Background: Acute and chronic calcineurin inhibitors (CNI) nephrotoxicity is a common concern in kidney transplant (KT) recipients. It is unclear whether diltiazem use can reduce CNI induced acute and chronic nephrotoxicity in (KT) recipients. In this study, we investigated the impact of diltiazem on 1 –year allograft survival and function.Materials and Methods: This single-center retrospective study included 312 kidney transplant recipients and donors. Diltiazem receiving and diltiazem-free recipients were compared for 1-year allograft survival and functions. Available allograft biopsies were investigated for the evidence pieces of CNI induced nephrotoxicity. Factors may have a potential impact on allograft functions were evaluated (cytomegalovirus and polyoma BK viremia positivity, acute rejection episodes, donors and recipients ages and body mass indexes). A statistical package program was used for data analysis. P<0.05 was assigned significant.Results: Seventy-three recipients in diltiazem arm and 239 in diltiazem-free arm were compared. In diltiazem and diltiazem-free arms, 1- year mortality, allograft survival rates and CNI induced nephrotoxicity incidences were 4.1% vs 3.8% (P=0.89), and 13.7% vs 7.1% (P=0.08), 18.8% vs 10.5% (P=0.27), respectively. However, 12-month estimated glomerular filtration rate was worse in diltiazem arm (62.75 ml/dk/1.73m2) compared to diltiazem-free group (73.19 ml/dk/1.73m2) (P=0.03). CNI toxicity had a weak impact on low eGFR in regression analysis (P=0.055 and 95% confidence interval).Conclusions: Despite diltiazem use allows to CNI dose reduction, it might have undesirable impacts on long-term allograft functions, which is the main target of the allograft care. Key Words: Allograft function, Diltiazem, Kidney transplantation