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Journal of Gastroenterology

, Volume 50, Issue 10, pp 1041–1046 | Cite as

Risk of bleeding after endoscopic submucosal dissection for colorectal tumors in patients with continued use of low-dose aspirin

  • Yuki Ninomiya
  • Shiro OkaEmail author
  • Shinji Tanaka
  • Soki Nishiyama
  • Yuzuru Tamaru
  • Naoki Asayama
  • Kenjiro Shigita
  • Nana Hayashi
  • Kazuaki Chayama
Original Article—Alimentary Tract

Abstract

Background

Although Japanese guidelines proposed by the Japan Gastroenterological Endoscopy Society for endoscopic submucosal dissection (ESD) for colorectal tumors recommend continued use of low-dose aspirin (LDA), this strategy is controversial. It was our practice to interrupt LDA therapy 5–7 days before ESD until December 2010, when we instituted the new guidelines and performed ESD without interrupting LDA therapy. The aim of the present study was to confirm the validity of the noninterrupted use of LDA inpatients undergoing ESD for colorectal tumors.

Methods

We studied 582 consecutive patients with 609 colorectal tumors who underwent ESD at Hiroshima University Hospital between January 2006 and July 2014. The patients comprised three groups: LDA-interrupted group (13 patients with 13 colorectal tumors), LDA-continued group (28 patients with 31 colorectal tumors), and no anticoagulant/antiplatelet group (541 patients with 565 colorectal tumors).

Results

The en bloc resection rate was 100 % (13/13) in the LDA-interrupted group and 90.3 % (28/31) in the LDA-continued group. Incidences of poor bleeding control during the procedure and bleeding after the procedure were 7.7 % (1/13) and 15.4 % (2/13) of patients, respectively, in the LDA-interrupted group, and 3.2 % (1/31) and 16.1 % (5/31) of patients, respectively, in the LDA-continued group. No patients experienced ischemic events in the perioperative period.

Conclusions

Our data suggest that continued use of LDA increased the risk of bleeding after ESD for colorectal tumors compared with nonuse of anticoagulant/antiplatelets. No significant difference was seen between the LDA-continued group and the LDA-interrupted group.

Keywords

Colorectal tumor ESD Low-dose aspirin Bleeding Complication 

Notes

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer Japan 2015

Authors and Affiliations

  • Yuki Ninomiya
    • 1
  • Shiro Oka
    • 1
    Email author
  • Shinji Tanaka
    • 1
  • Soki Nishiyama
    • 2
  • Yuzuru Tamaru
    • 2
  • Naoki Asayama
    • 2
  • Kenjiro Shigita
    • 2
  • Nana Hayashi
    • 2
  • Kazuaki Chayama
    • 2
  1. 1.Department of EndoscopyHiroshima University HospitalHiroshimaJapan
  2. 2.Department of Gastroenterology and MetabolismHiroshima University HospitalHiroshimaJapan

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