Is peritoneal dialysis the first-choice renal replacement therapy for patients waiting for a kidney transplant?

Abstract

Kidney transplantation is the gold-standard treatment of end-stage renal disease. Receiving a pre-emptive transplant ensures the best survival for both the recipient and the allograft. However, due to an overwhelming discrepancy between available donors and patients on the transplant waiting list, the vast majority of transplant candidates require prolonged periods of dialytic therapy before transplant.

Peritoneal dialysis and hemodialysis have been traditionally considered as competitive renal replacement therapies. This dualistic vision has been recently questioned by emerging evidence suggesting that an individualized and flexible approach may be more appropriate. Tailored and cleverly planned shifts between different modalities, according to the patient’s needs, represents the best option.

Remarkably, recent data seem to support the use of peritoneal dialysis over hemodialysis in patients waiting for a kidney transplant. In this specific setting, the perceived advantages of PD are better overall recipient survival and quality of life, longer preservation of residual renal function, lower incidence of delayed graft function and reduced cost.

Keywords: peritoneal dialysis, kidney transplant, hemodialysis, renal replacement therapy, waiting-list, residual renal function, quality of life, delayed graft function

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Introduzione

Il trapianto di rene (KT) è ampiamente riconosciuto come la terapia renale sostitutiva (RRT) d’elezione per la malattia renale terminale (ESRD) [13]. Idealmente, sottoporre il paziente a KT prima dell’inizio della terapia dialitica è la strategia che permette di ottenere i risultati più soddisfacenti [46]. Tuttavia, a causa della limitata disponibilità di donatori, la maggior parte dei soggetti candidati a KT necessita di un lungo periodo di trattamento dialitico prima di ricevere un organo [7]. Per molti anni l’emodialisi (HD) ha rappresentato l’unica opzione per i pazienti in lista di trapianto [8,9]. Negli anni ‘80 l’avvento della dialisi peritoneale (PD) nella pratica clinica ha sollevato la questione di quale fosse la terapia dialitica da preferire nei pazienti candidabili a KT [10,11].

 

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