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Trends in Patient Characteristics on the Japanese Waiting Lists for Deceased-Donor Kidney Transplantation. Are There no Eligibility or Ineligibility Criteria for Registration and Renewal?
Transplantation Proceedings 2024 September 3
BACKGROUND: Controversial issues in registering candidates for deceased-donor kidney transplantation (DDKT) comprise various factors, including age, life expectancy, and dialysis duration. We investigated patient characteristics on the waiting list and discussed suitable criteria in Japan, which has a long waiting period.
METHODS: This study included 592 patients on the waiting list for DDKT at our institute between 1982 and 2023. We retrospectively reviewed patients' medical charts and obtained their clinical information. Patient characteristics according to outcomes and eligibility criteria for applying for or renewing registration were investigated. No prisoners were used in the study, and the participants were neither coerced nor paid.
RESULTS: Approximately 70%, 45%, and 14.5% of the registered patients were aged >60, >70, and 80 years, respectively. The number of patients aged ≥70 years gradually decreased over time. The median waiting periods of patients who underwent and interrupted DDKT were 13 and 7 years, respectively. Patients in their 70s with a >15-year dialysis period tended to have opportunities for DDKT. Living-donor kidney transplantation was performed in patients aged <60 years. Waiting patients were significantly younger and had a shorter dialysis duration. Advanced age at registration was associated with a significantly high risk of interruption.
CONCLUSIONS: Advanced age and longer dialysis periods were considered at registration because patients with these factors tended to experience interruptions despite the long waiting period and high cost. Although older patients can undergo DDKT, factors including surgical cost and risks are considered. Eligibility/ineligibility criteria should be established for DDKT waiting lists in Japan.
METHODS: This study included 592 patients on the waiting list for DDKT at our institute between 1982 and 2023. We retrospectively reviewed patients' medical charts and obtained their clinical information. Patient characteristics according to outcomes and eligibility criteria for applying for or renewing registration were investigated. No prisoners were used in the study, and the participants were neither coerced nor paid.
RESULTS: Approximately 70%, 45%, and 14.5% of the registered patients were aged >60, >70, and 80 years, respectively. The number of patients aged ≥70 years gradually decreased over time. The median waiting periods of patients who underwent and interrupted DDKT were 13 and 7 years, respectively. Patients in their 70s with a >15-year dialysis period tended to have opportunities for DDKT. Living-donor kidney transplantation was performed in patients aged <60 years. Waiting patients were significantly younger and had a shorter dialysis duration. Advanced age at registration was associated with a significantly high risk of interruption.
CONCLUSIONS: Advanced age and longer dialysis periods were considered at registration because patients with these factors tended to experience interruptions despite the long waiting period and high cost. Although older patients can undergo DDKT, factors including surgical cost and risks are considered. Eligibility/ineligibility criteria should be established for DDKT waiting lists in Japan.
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