Transfusion ratios and survival in severe blunt trauma patients receiving massive transfusion

Abstract The optimal transfusion ratios for severe blunt trauma requiring massive transfusion remain unclear. This nationwide retrospective cohort study used data from the Japan Trauma Data Bank (2019–2022) and included patients receiving ≥ 10 units of packed red blood cells (pRBC) within 24 h. The...

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Main Authors: Toru Takiguchi, Tomohisa Seki, Takashi Tagami, Yu Akagi, Ryuta Nakae, Hiromasa Ito, Yoshimasa Kawazoe, Ichiro Okada, Shiei Kim, Masaaki Inoue, Kazuhiko Ohe, Shoji Yokobori
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Language:English
Published: Nature Portfolio 2025-07-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-11338-7
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author Toru Takiguchi
Tomohisa Seki
Takashi Tagami
Yu Akagi
Ryuta Nakae
Hiromasa Ito
Yoshimasa Kawazoe
Ichiro Okada
Shiei Kim
Masaaki Inoue
Kazuhiko Ohe
Shoji Yokobori
author_facet Toru Takiguchi
Tomohisa Seki
Takashi Tagami
Yu Akagi
Ryuta Nakae
Hiromasa Ito
Yoshimasa Kawazoe
Ichiro Okada
Shiei Kim
Masaaki Inoue
Kazuhiko Ohe
Shoji Yokobori
author_sort Toru Takiguchi
collection DOAJ
description Abstract The optimal transfusion ratios for severe blunt trauma requiring massive transfusion remain unclear. This nationwide retrospective cohort study used data from the Japan Trauma Data Bank (2019–2022) and included patients receiving ≥ 10 units of packed red blood cells (pRBC) within 24 h. The fresh frozen plasma (FFP)-to-pRBC and platelet concentrate (PC)-to-pRBC ratios were categorized as 0–0.5, 0.5–1, 1–1.5, 1.5–2, and > 2. Among 2,849 eligible patients, an FFP-to-pRBC ratio of 1–1.5 was associated with significantly higher in-hospital survival than 0.5–1 (adjusted odds ratio [OR], 1.46; 95% confidence interval [CI], 1.12–1.92; P = 0.006). A PC-to-pRBC ratio of 1.5–2 also showed a trend toward improved survival (1.62; 1.00–2.69; P = 0.053). Patients were categorized into three phenotypes: truncal trauma with shock (70.3%), moderate head and extremity trauma (11.8%), and severe head trauma with consciousness disturbances (17.9%). In the truncal trauma with shock phenotype, FFP-to-pRBC ratios of 1–1.5 (1.56; 1.12–2.20; P = 0.010) and > 2 (2.32; 1.14–5.10; P = 0.027) were associated with improved survival. Higher FFP-to-pRBC and PC-to-pRBC ratios may be associated with improved survival, especially in truncal trauma with shock.
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spelling doaj-art-52761145f75e45ea8a0c695073657ff72025-08-20T03:05:22ZengNature PortfolioScientific Reports2045-23222025-07-0115111110.1038/s41598-025-11338-7Transfusion ratios and survival in severe blunt trauma patients receiving massive transfusionToru Takiguchi0Tomohisa Seki1Takashi Tagami2Yu Akagi3Ryuta Nakae4Hiromasa Ito5Yoshimasa Kawazoe6Ichiro Okada7Shiei Kim8Masaaki Inoue9Kazuhiko Ohe10Shoji Yokobori11Department of Emergency and Critical Care Medicine, Nippon Medical SchoolDepartment of Healthcare Information Management, The University of Tokyo HospitalDepartment of Emergency and Critical Care Medicine, Nippon Medical SchoolDepartment of Biomedical Informatics, Graduate School of Medicine, The University of TokyoDepartment of Emergency and Critical Care Medicine, Nippon Medical SchoolDepartment of Healthcare Information Management, The University of Tokyo HospitalDepartment of Healthcare Information Management, The University of Tokyo HospitalDepartment of Emergency and Critical Care Medicine, Nippon Medical SchoolDepartment of Emergency and Critical Care Medicine, Nippon Medical SchoolDepartment of Emergency and Critical Care Medicine, Nippon Medical SchoolDepartment of Healthcare Information Management, The University of Tokyo HospitalDepartment of Emergency and Critical Care Medicine, Nippon Medical SchoolAbstract The optimal transfusion ratios for severe blunt trauma requiring massive transfusion remain unclear. This nationwide retrospective cohort study used data from the Japan Trauma Data Bank (2019–2022) and included patients receiving ≥ 10 units of packed red blood cells (pRBC) within 24 h. The fresh frozen plasma (FFP)-to-pRBC and platelet concentrate (PC)-to-pRBC ratios were categorized as 0–0.5, 0.5–1, 1–1.5, 1.5–2, and > 2. Among 2,849 eligible patients, an FFP-to-pRBC ratio of 1–1.5 was associated with significantly higher in-hospital survival than 0.5–1 (adjusted odds ratio [OR], 1.46; 95% confidence interval [CI], 1.12–1.92; P = 0.006). A PC-to-pRBC ratio of 1.5–2 also showed a trend toward improved survival (1.62; 1.00–2.69; P = 0.053). Patients were categorized into three phenotypes: truncal trauma with shock (70.3%), moderate head and extremity trauma (11.8%), and severe head trauma with consciousness disturbances (17.9%). In the truncal trauma with shock phenotype, FFP-to-pRBC ratios of 1–1.5 (1.56; 1.12–2.20; P = 0.010) and > 2 (2.32; 1.14–5.10; P = 0.027) were associated with improved survival. Higher FFP-to-pRBC and PC-to-pRBC ratios may be associated with improved survival, especially in truncal trauma with shock.https://doi.org/10.1038/s41598-025-11338-7Transfusion ratioBlunt traumaMassive transfusionClusteringTruncal traumaShock
spellingShingle Toru Takiguchi
Tomohisa Seki
Takashi Tagami
Yu Akagi
Ryuta Nakae
Hiromasa Ito
Yoshimasa Kawazoe
Ichiro Okada
Shiei Kim
Masaaki Inoue
Kazuhiko Ohe
Shoji Yokobori
Transfusion ratios and survival in severe blunt trauma patients receiving massive transfusion
Scientific Reports
Transfusion ratio
Blunt trauma
Massive transfusion
Clustering
Truncal trauma
Shock
title Transfusion ratios and survival in severe blunt trauma patients receiving massive transfusion
title_full Transfusion ratios and survival in severe blunt trauma patients receiving massive transfusion
title_fullStr Transfusion ratios and survival in severe blunt trauma patients receiving massive transfusion
title_full_unstemmed Transfusion ratios and survival in severe blunt trauma patients receiving massive transfusion
title_short Transfusion ratios and survival in severe blunt trauma patients receiving massive transfusion
title_sort transfusion ratios and survival in severe blunt trauma patients receiving massive transfusion
topic Transfusion ratio
Blunt trauma
Massive transfusion
Clustering
Truncal trauma
Shock
url https://doi.org/10.1038/s41598-025-11338-7
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