Dialysis and Renal Disease Management
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Low transfer to haemodialysis and death rates in this cohort support the safety of incremental PD prescribing, and younger age, male sex, and lower albumin at dialysis start are associated with a shorter time to increment.
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INTRODUCTION: Incremental peritoneal dialysis (PD), where 'less than full-dose' prescriptions are increased as residual kidney function declines, contributes to increased quality of life and reduced dialysis burden. Evidence supporting the safety of incremental regimens and informing patient expectations is limited. This study examined time to increment in dialysis prescriptions, PD modality transfer, transfer to haemodialysis and mortality rates within a single centre delivering incremental PD. METHODS: Patients incident to PD and on incremental regimens were followed for changes in prescription, modality transfer and death between January 1, 2012 and December 31, 2023. Multivariable Cox regression assessed factors associated with time to increment, and Kaplan-Meier methods with log-rank testing were used for time-to-event analyses. RESULTS: The cohort included 527 patients. At one year, 64% (95% CI 60-69%) remained on the same starting regimen, with 36% of people (95% CI 31-41%) having not incremented by two years. Time to increment was shorter for younger age at PD start (per decade, HR 0.92, 95% CI 0.85-0.99, P=0.02), male sex (HR 1.67, 95% CI 1.29-2.16, P<0.001), and lower serum albumin (HR 0.96, 95% CI 0.94-0.98, P<0.001). PD modality transfer was driven by lifestyle, fluid overload and uraemic symptoms. Transfer to haemodialysis was associated with younger age (P=0.03) and diabetes mellitus (P=0.04), whilst time to haemodialysis transfer was correlated with lower albumin (P=0.01) and starting estimated glomerular filtration rate (P=0.006). Mortality rates were low at 0.11 events per person-year. CONCLUSION: Younger age, male sex, and lower albumin at dialysis start are associated with a shorter time to increment. Low transfer to haemodialysis and death rates in this cohort support the safety of incremental PD prescribing. A simple clinical score was subsequently constructed and tested as a method of supporting shared decision-making and informing patient expectations of treatment but requires validation in future studies.
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@article{Selwood2026Evaluating,
title = {Evaluating Patterns and Outcomes in the Prescription of Incremental Peritoneal Dialysis in Support of Shared Decision-Making},
author = {Jessica Selwood and Rishana Shuaib and Ted J. FitzGerald and Sally Punzalan and Gaetano Lucisano and Edwina A. Brown and Richard Corbett},
journal = {Clinical Journal of the American Society of Nephrology},
year = {2026},
doi = {10.2215/cjn.0000001187},
url = {https://doi.org/10.2215/cjn.0000001187}
}FAQ
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