World Journal of Surgery

, Volume 43, Issue 3, pp 870–877 | Cite as

Intraoperative Blood Loss is Associated with Shortened Postoperative Survival of Patients with Stage II/III Gastric Cancer: Analysis of a Multi-institutional Dataset

  • Yuki Ito
  • Mitsuro KandaEmail author
  • Seiji Ito
  • Yoshinari Mochizuki
  • Hitoshi Teramoto
  • Kiyoshi Ishigure
  • Toshifumi Murai
  • Takahiro Asada
  • Akiharu Ishiyama
  • Hidenobu Matsushita
  • Chie Tanaka
  • Daisuke Kobayashi
  • Michitaka Fujiwara
  • Kenta Murotani
  • Yasuhiro Kodera
Original Scientific Report (including Papers Presented at Surgical Conferences)



The influence of intraoperative blood loss (IBL) on postoperative long-term outcomes of patients with gastric cancer is controversial. Here, we used a large multicenter dataset from nine institutes to evaluate the prognostic impact of IBL on patients with stage II/III gastric cancer.


The study analyzed 1013 patients with stage II/III gastric cancer who underwent gastrectomy without preoperative treatment and intraoperative transfusion. Patients were equally divided into learning and validation cohorts using a table of random numbers. The optimal cutoff value of IBL to predict recurrence was determined using the learning cohort, and the prognostic significance of the proposed cutoff was validated using the second cohort.


The optimal cutoff value of IBL determined with the learning cohort using the receiver operating characteristic curve analysis was 330 ml. In the validation cohort, IBL > 330 ml was significantly associated with high body mass index, total gastrectomy, and postoperative complications, but not disease stage and the frequency of adjuvant chemotherapy. The disease-free and disease-specific survival rates of patients in the IBL > 330 ml (IBL-high) group were significantly shorter compared with those in the IBL ≤ 330 ml group. IBL-high was identified as an independent prognostic factor of disease recurrence (hazard ratio 1.45, 95% confidence interval 1.01–2.09, P = 0.0420). The hazard ratio of the IBL-high group was greater in the surgery-alone subgroup compared with that of the postoperative adjuvant-chemotherapy subgroup.


Our analysis of a multicenter dataset indicates that IBL adversely influenced long-term outcomes of patients with stage II/III gastric cancer.



We thank Edanz Group ( for editing a draft of this manuscript.

Compliance with ethical standards

Conflict of interest

The authors do not have any conflicts of interest or financial or material support to disclose.

Ethical standard

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.


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Copyright information

© Société Internationale de Chirurgie 2018

Authors and Affiliations

  • Yuki Ito
    • 1
  • Mitsuro Kanda
    • 2
    Email author
  • Seiji Ito
    • 3
  • Yoshinari Mochizuki
    • 4
  • Hitoshi Teramoto
    • 5
  • Kiyoshi Ishigure
    • 6
  • Toshifumi Murai
    • 7
  • Takahiro Asada
    • 1
  • Akiharu Ishiyama
    • 8
  • Hidenobu Matsushita
    • 9
  • Chie Tanaka
    • 2
  • Daisuke Kobayashi
    • 2
  • Michitaka Fujiwara
    • 2
  • Kenta Murotani
    • 10
  • Yasuhiro Kodera
    • 2
  1. 1.Department of SurgeryGifu Prefectural Tajimi HospitalTajimiJapan
  2. 2.Department of Gastroenterological Surgery (Surgery II)Nagoya University Graduate School of MedicineNagoyaJapan
  3. 3.Department of Gastroenterological SurgeryAichi Cancer CenterNagoyaJapan
  4. 4.Department of SurgeryKomaki Municipal HospitalKomakiJapan
  5. 5.Department of SurgeryYokkaichi Municipal HospitalYokkaichiJapan
  6. 6.Department of SurgeryKonan Kosei HospitalKonanJapan
  7. 7.Department of SurgeryIchinomiya Municipal HospitalIchinomiyaJapan
  8. 8.Department of SurgeryOkazaki City HospitalOkazakiJapan
  9. 9.Department of SurgeryTosei General HospitalSetoJapan
  10. 10.Biostatistics Center, Graduate School of MedicineKurume UniversityKurumeJapan

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