The Time-Dependent Effect of Assistance on Peritoneal Dialysis Duration: An Analysis of Data from the French Language Peritoneal Dialysis Registry

Patient on Peritoneal Dialysis Transfers to Hemodialysis: Causes and Associated Risks

Key Points

Background

The end of peritoneal dialysis (PD) can be marked by kidney transplantation, death, or transfer to hemodialysis. We compared the risks of the different reasons for transfer to hemodialysis in patients on PD according to the use of assistance for PD care, PD modality, and the suboptimal starter status.

Methods

This was a retrospective study using data from the French Language PD Registry from patients who started PD between January 1, 2002, and December 31, 2018. We used Cox and Fine–Gray survival models to evaluate the risks of transfer to hemodialysis due to PD inadequacy, infection, mechanical issue, psychosocial issue, other PD-related causes, and other non–PD-related causes. Models were evaluated for three periods of PD vintage: 0–6 months, 6–18 months, and after 18 months.

Results

The study included 15,974 patients on incident PD treated in 170 French PD units. There were 6835 deaths, 5108 transfers to hemodialysis, and 3092 renal transplantations. Nurse-assisted PD was associated with a lower risk of transfer to hemodialysis for infection in the first 18 months (cause-specific hazard ratio [cs-HR], 0.51; 95% confidence interval [CI], 0.31 to 0.83 before 6 months) and for adequacy issues after 6 months (cs-HR, 0.59; 95% CI, 0.51 to 0.70 after 18 months). The risk of transfer for mechanical issue was higher in continuous ambulatory PD compared with automated PD during the first 18 months (cs-HR, 1.41; 95% CI, 1.00 to 1.99 before 6 months), but continuous ambulatory PD was associated with a lower risk of adequacy, infectious, or mechanical issue after 18 months. Finally, suboptimal starters have a higher risk of transfer due to psychosocial challenges in the first 6 months (cs-HR, 1.70; 95% CI, 1.03 to 2.81).

Conclusions

Distinct factors are associated with the risk of transfer from PD to in-center hemodialysis, according to the cause of the transfer. Some preventive measures targeting these risk factors may help to maintain patients in PD.

Podcast

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