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Background <p>The optimal timing of organ donation discussions in patients with catastrophic brain injury remains unclear. In Japan, national guidance recommends providing information after recognition of a state compatible with brain death; however, real-world practice has not been well characterized. This study aimed to evaluate the sequence of organ donation option presentation relative to clinical determination of a brain death-compatible state and to assess option presentation timing.</p> Methods <p>We conducted a multicenter retrospective cohort study using data from the J-RESPECT study, including adult brain-dead donors from 16 institutions in Japan between 2010 and 2023. Donors were classified as brain death-first (option presented after clinical determination of a brain death-compatible state) or option-first (option presented before such determination). Mixed-effects logistic and linear regression models with random intercepts for institution were used to examine factors associated with presentation sequence and timing.</p> Results <p>Among 190 donors, 76 (40%) were classified as brain death-first and 114 (60%) as option-first. In mixed-effects logistic regression, age was the only independent factor associated with presentation sequence (adjusted OR 1.03 per year, 95% CI 1.00–1.07), while substantial between-institution variability was observed (intraclass correlation coefficient = 0.32). Institutional timing policy was not significantly associated with presentation sequence. The median interval from admission to option presentation was 5&#xa0;days in the brain death-first group and 2&#xa0;days in the option-first group (<i>p</i> &lt; 0.001).</p> Conclusions <p>Substantial inter-institutional variability exists in the sequence and timing of organ donation discussions in Japan. Further studies are needed to determine optimal approaches to organ donation communication and timing in clinical practice.</p>

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Sequence and timing of organ donation discussions in brain-dead donors: a subanalysis of the J-RESPECT study

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  • 发表日期：

    2026年7月28日

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  • Tetsuya Yumoto,
  • Hiromichi Naito,
  • Mineji Hayakawa,
  • Shoji Yokobori,
  • Kei Nishiyama,
  • Takahiro Atsumi,
  • Osamu Tasaki,
  • Junya Tsurukiri,
  • Mariko Hayamizu,
  • Shimon Murahashi,
  • Munehiro Hayashi,
  • Takeshi Nishimura,
  • Yukari Goto,
  • Hiromichi Narumiya,
  • Atsushi Mizutani,
  • Mamoru Miyajima,
  • Junya Shimazaki,
  • Takeshi Miura,
  • Nozomu Shima,
  • Kazuki Deuchi,
  • Hitomi Nakayasu,
  • Hitoshi Kano,
  • Takashi Yorifuji,
  • Atsunori Nakao

摘要

Background

The optimal timing of organ donation discussions in patients with catastrophic brain injury remains unclear. In Japan, national guidance recommends providing information after recognition of a state compatible with brain death; however, real-world practice has not been well characterized. This study aimed to evaluate the sequence of organ donation option presentation relative to clinical determination of a brain death-compatible state and to assess option presentation timing.

Methods

We conducted a multicenter retrospective cohort study using data from the J-RESPECT study, including adult brain-dead donors from 16 institutions in Japan between 2010 and 2023. Donors were classified as brain death-first (option presented after clinical determination of a brain death-compatible state) or option-first (option presented before such determination). Mixed-effects logistic and linear regression models with random intercepts for institution were used to examine factors associated with presentation sequence and timing.

Results

Among 190 donors, 76 (40%) were classified as brain death-first and 114 (60%) as option-first. In mixed-effects logistic regression, age was the only independent factor associated with presentation sequence (adjusted OR 1.03 per year, 95% CI 1.00–1.07), while substantial between-institution variability was observed (intraclass correlation coefficient = 0.32). Institutional timing policy was not significantly associated with presentation sequence. The median interval from admission to option presentation was 5 days in the brain death-first group and 2 days in the option-first group (p < 0.001).

Conclusions

Substantial inter-institutional variability exists in the sequence and timing of organ donation discussions in Japan. Further studies are needed to determine optimal approaches to organ donation communication and timing in clinical practice.