Abstract
A hemoglobin (Hb) threshold level of 7 g/dL has been proposed for red blood cell (RBC) transfusion in patients with chronic anemia in the Japanese guideline since 2005. However, Hb thresholds for hematological diseases in clinical practice and factors responsible for higher Hb thresholds remain unclear. Hb thresholds were collected for patients with hematological diseases from 32 Japanese teaching hospitals. Uni- and multivariate analyses were used to analyze relationships between Hb threshold level and various patient and hospital factors. In total, 4996 units of RBC were transfused to 1054 patients with hematological diseases in 2421 transfusions. Median age was 68 years. Myelodysplastic syndrome was the most frequent diagnosis. Overall median Hb threshold level was 6.9 g/dL. Multivariate linear regression analysis detected the following variables associated with Hb threshold level: hospital; cardiovascular disease; symptomatic anemia; and hematopoietic stem cell transplantation. Hospital was the most significant factor. Collectively, median Hb threshold level in clinical practice in Japan was similar to the guidelines. Higher Hb threshold level depended on the hospitals at which the transfusions were performed as well as patient condition. Educational approaches directed toward hospitals may be useful to promote transfusion guidelines.
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Acknowledgements
The following collaborators participated in this study. Tohoku University Hospital, Sendai: Dr. Minami Fujiwara; Hyogo Cancer Center, Hyogo: Dr. Hiroshi Gomyo; Hokkaido University, Sapporo: Eiko Hayase; University of Yamanashi, Yamanashi (present address: Tokyo Medical University): Dr. Makoto Kaneko; Gifu University Graduate School of Medicine, Gifu: Dr. Jyun-ichi Kitagawa; Fukuoka University Hospital, Fukuoka: Dr. Midori Kumagawa; Inoue Memorial Hospital, Chiba: Dr. Yasuhiro Matsuura; Usui Hospital, Annaka: Dr. Kumiko Matsumoto; Japanese Red Cross Kitami Hospital, Kitami: Dr. Takahiro Nagashima; Tokushima Prefectural Central Hospital, Tokushima: Dr. Shuuji Ozaki; National Defense Medical College, Tokorozawa: Dr. Ken Satoh; Toho University Medical Center Sakura Hospital, Chiba: Dr. Naomi Shimizu; Toho University Medical Center Omori Hospital, Tokyo: Dr. Noritsugu Shiono; Japan Red Cross Musashino Hospital, Tokyo: Dr. Hina Takano; The Jikei University Hospital, Tokyo: Dr. Tetsunori Tasaki; Hiroshima University Hospital, Hiroshima: Dr. Naoya Yamasaki; Iwate Prefectural Isawa Hospital, Oshu-shi: Dr. Kozue Yoshida; Hyogo College of Medicine, Nishinomiya: Dr. Satoshi Yoshihara. The authors all thank Takahiko Kodama for his support of this study.
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This study was supported by the Japan Society of Transfusion Medicine and Cell Therapy.
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AY designed the conception of this study, analyzed the data, interpreted the results, and wrote the manuscript. SF, YH, KI, AT, KF, MM, SM, SK, AT, and KM designed the conception of this study and interpreted the results. AY, YO, YU, MI, SF, YH, KN, KA, KM, MM, MW, KI, AT, and KM collected the data. All authors reviewed the manuscript and approved the final version of this manuscript.
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Yokohama, A., Okuyama, Y., Ueda, Y. et al. Differences among hemoglobin thresholds for red blood cell transfusions in patients with hematological diseases in teaching hospitals: a real world data in Japan. Int J Hematol 112, 535–543 (2020). https://doi.org/10.1007/s12185-020-02937-3
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DOI: https://doi.org/10.1007/s12185-020-02937-3