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Mortality Trends After Transfer From Peritoneal Dialysis to Hemodialysis

  • INTEGRATED Study Group
  • University of Montreal
  • University of Michigan, Ann Arbor
  • Department of Veterans Affairs
  • Keele University
  • University of Toronto
  • Metro South Integrated Nephrology and Transplant Services (MINTS), Princess Alexandra Hospital, Woolloongabba, Queensland, Australia
  • University of Queensland
  • Queensland University of Technology
  • Arbor Research Collaborative for Health, Ann Arbor, Michigan, USA
  • Ghent University
  • The Dalglish Family 22q Clinic, University Health Network, Toronto, Ontario, Canada

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Introduction: Transition to hemodialysis (HD) is a common outcome in peritoneal dialysis (PD), but the associated mortality risk is poorly understood. This study sought to identify rates of and risk factors for mortality after transitioning from PD to HD. Methods: Patients with incident PD (between 2000 and 2014) who transferred to HD for ≥1 day were identified, using data from Australia and New Zealand Dialysis and Transplantation registry (ANZDATA), Canadian Organ Replacement Register (CORR), Europe Renal Association (ERA) Registry, and the United States Renal Dialysis System (USRDS). Crude mortality rates were calculated for the first 180 days after transfer. Separate multivariable Cox models were built for early (<90 days), medium (90–180 days), and late (>180 days) periods after transfer. Results: Overall, 6683, 5847, 21,574, and 80,459 patients were included from ANZDATA, CORR, ERA Registry, and USRDS, respectively. In all registries, crude mortality rate was highest during the first 30 days after a transfer to HD declining thereafter to nadir at 4 to 6 months. Crude mortality rates were lower for patients transferring in the most recent years (than earlier). Older age, PD initiation in earlier cohorts, and longer PD vintage were associated with increased risk of death, with the strongest associations during the first 90 days after transfer and attenuating thereafter. Mortality risk was lower for men than women <90 days after transfer, but higher after 180 days. Conclusion: In this multinational study, mortality was highest in the first month after a transfer from PD to HD and risk factors varied by time period after transfer. This study highlights the vulnerability of patients at the time of modality transfer and the need to improve transitions.

Original languageEnglish
Pages (from-to)1062-1073
Number of pages12
JournalKidney International Reports
Volume7
Issue number5
Early online date2022
DOIs
Publication statusPublished - May 2022

Keywords

  • hemodialysis
  • peritoneal dialysis
  • survival
  • technique failure
  • transition

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