#4264 PERITONEAL DIALYSIS AFTER FAILED KIDNEY TRANSPLANT: A SUITABLE OPTION

Abstract

Abstract Background and Aims Despite great advances in graft survival, kidney transplant (KT) recipients frequently return to dialysis. The aim of this study was to perform an analysis of peritoneal dialysis (PD) outcomes of patients with a failed KT. Method Single-center retrospective cohort study with end-stage renal disease (ESRD) patients who started PD from 1st January 2010 to 31st December 2017. Two groups were analyzed - patients who started PD with no previous renal replacement therapy (RRT) - PD first -, and patients who transitioned directly from a failed kidney transplant. Results Among 152 patients who started PD, 115 were PD first and 15 transitioned from KT. The population included 63,1% of male gender, with a mean age of 52,4 ± 15,5 years and had PD median vintage of 30 months (IQR 20,6). Patients who transitioned from KT were significantly younger (mean age 42,8 ± 14,3 vs. 53,7 ± 15,3, p = 0,015) and had lower prevalence of diabetes mellitus (13,3% vs. 40,0%, p = 0,044). In KT patients, glucocorticoids were continued until there was residual diuresis and non-glucocorticoid immunosuppression was maintained for a median of 180 days (± 176) after PD start. Nearly a third (30,0%) of patients had no hospitalizations and 35,5% had more than 2 hospital admissions. Annual hospitalization rate was higher in prior KT group (1,40 vs. 0,48, p = 0,002). Prior KT associated with higher annual peritonitis rate (0,70 vs. 0,20, p = 0,017). A higher number of MACE was also observed in prior KT group (33,3% vs. 7,9%, p = 0,004). Residual diuresis was significantly lower in the group with previous KT. Neither ultrafiltration failure (6,7% vs. 9,9%, p = 0,974), nor technique survival (death or hemodialysis transfer 53,3% vs. 54,8%, p = 0,917; logrank 0,354) were different between groups. Conclusion Although higher incidence of diabetes mellitus was observed in PD first group, no differences were identified in ultrafiltration failure rates between groups. Despite significantly lower diuresis in prior KT group, both groups had adequate dialysis efficacy (mean Kt/V>1,7) and similar technique survival. Higher peritonitis rate and MACE incidence was observed in prior KT group, possibly associated with maintenance immunosuppression. Nevertheless, PD is a valid choice for RRT after a failed KT and should be offered to these patients.