Abstract
BackgroundFollowing kidney transplant failure, patients generally have three kidney replacement therapy (KRT) options: peritoneal dialysis (PD), haemodialysis (HD), or pre-emptive kidney re-transplantation. This review aims to explore KRT options after kidney transplant failure and compare clinical outcomes. MethodThis review included studies from five databases: Medline, PubMed, Embase, Cochrane, and CINAHL. The study protocol was registered at PROSPERO [CRD42024514346]. Causes of kidney transplant failure were explored. Survival and re-transplantation rates among three groups after kidney transplant failure were compared: patients starting PD (TX-PD group), patients starting HD (TX-HD group), and patients re-transplanted without bridging dialysis (TX-TX group). Causes of death were also explored. The quality of the included studies was assessed using the CASP checklist and the meta-analysis was assessed using the GRADE approach. ResultsOf 6405 articles, eight articles were included in the systematic review. Chronic damage was identified as the primary cause of kidney transplant failure. The TX-TX group had a lower mortality rate than the TX-HD group and TX-PD group, though this difference was only statistically significant in comparison to the TX-HD group (OR: 2.57; 95 % CI:1.58, 4.17; I2 = 79 %; P = 0.0001). Additionally, the TX-PD group had a significantly lower mortality rate (OR: 0.83; 95 % CI:0.76, 0.90; I2 = 88 %; P < 0.0001) and higher re-transplantation rate (OR: 1.56; 95 % CI:1.41, 1.73; I2 = 0 %; P < 0.00001) compared to the TX-HD group. Cardiovascular disease, infection, and cancer were the leading causes of death. ConclusionThe TX-TX group had better survival than the TX-HD group. Survival and re-transplantation rates were higher in the TX-PD group than the TX-HD group. However, age and comorbidities may impact survival and re-transplantation rates between the TX-PD and TX-HD groups, which should be explored further.
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