Patients returning to haemodialysis or peritoneal dialysis after a failed kidney transplantation sometimes have a renal allograft left in situ for some urine production. Low-dose immunosuppressive medication is often continued in such patients. To evaluate the morbidity and mortality between patients in time periods with (group A) or without (group B) low-dose maintenance immunosuppression, the present study was initiated. In a multi-centre cohort study we analysed data from patient files, which showed failure after at least 3 months graft function between 10 August 1972 and 4 April 1996, including 197 kidney transplantations. A total of 1.7 versus 0.51 infections per patient year was found in groups A and B, respectively (odds ratio [OR]: 3.4, 95% confidence interval [CI]: 2.5-4.5). There was an increased mortality in group A compared to group B (OR 3.4, 95% CI: 1.8-6.3), both from infectious disease (OR 2.8, 95% CI: 1.1-7.0), and cardiovascular disease (OR 4.9, 95% CI: 1.8-13.5). Continuation of immunosuppressive medication did not lead to fewer rejections (defined as a painful, tender graft and/or haematuria and/or low-grade non-infectious fever). Transplantectomy-related morbidity and mortality were acceptable. The increase in morbidity and mortality associated with low-dose maintenance immunosuppression argues in favour of stopping these medicaments when failed renal allograft patients return to dialysis.

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Aims The aim of this study was to determine the potential influence of renal impairment on the pharmacokinetics of temocapril and its pharmacologically active diacid metabolite, temocaprilat. Methods Non-compartmental pharmacokinetics were assessed in four groups of hypertensive patients (n=8 per group, four investigational centres) with normal (creatinine clearance determined via 24 h urine sampling, CL CR , ≥60 ml min ]. Conclusions These results indicate that impaired renal function has only a limited effect on the pharmacokinetics of temocapril and its active metabolite, temocaprilat. This may be attributed to the dual, i.e. renal and biliary, elimination pathway of the drug.

Chronic ischemic lesions in the donor kidney amplify the nephrotoxic effects of cyclosporine A [1]. With increasing age, the presence of chronic ischemic lesions in the kidney increases [2], and data concerning the fate of kidney grafts from older donors are conflicting [3–6]. Kidney from donors with an intracerebral bleed do less well compared to kidneys from other donors. Systematic data on the relationship between donor age, cause of death and severity of chronic ischemic lesions are lacking. This study was performed to investigate this relationship.

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