Technique Failure in a Multicenter Canadian Home Hemodialysis Cohort

Area of Science:

• Nephrology
• Renal Replacement Therapy
• Dialysis Technology

Background:

• Home hemodialysis (HD) is increasingly utilized.
• Predictors of home HD discontinuation, excluding death or transplantation, are of growing interest.
• Variability in practice patterns suggests patient- and center-specific factors may influence therapy longevity.

Purpose of the Study:

• To investigate patient- and center-specific factors influencing home HD technique failure.
• To identify predictors of mortality in home HD patients.
• To understand the impact of treatment centers on home HD outcomes.

Main Methods:

• Retrospective cohort study of incident home HD patients across 7 Canadian centers (2000-2010).
• Analysis included treatment center, case-mix, and process-of-care variables.
• Cox proportional hazard models were used to assess technique failure and mortality, adjusting for patient-level variables and censoring for death/transplantation.

Main Results:

• The study included 579 patients with a mean age of 49.9 years.
• Treatment center emerged as a significant predictor for both technique failure (HRs 0.37-5.11) and mortality (HRs 0.17-8.73).
• After adjusting for center, older age and more frequent dialysis treatments (>3/week) predicted technique failure, while no individual factors predicted survival.

Conclusions:

• Home HD treatment centers significantly influence technique failure and patient mortality, independent of patient case-mix.
• Further research is needed to explore the relationship between specific care processes and patient outcomes in home HD.
• Optimizing center-specific practices may be crucial for enhancing home HD therapy adherence and patient survival.