Current Therapeutic Research (Jan 2017)

Bleeding Risk Related to Upper Gastrointestinal Endoscopic Biopsy in Patients Receiving Antithrombotic Therapy: A Multicenter Prospective Observational Study

  • Takafumi Yuki, MD, PhD,
  • Shunji Ishihara, MD, PhD,
  • Kazuo Yashima, MD, PhD,
  • Koichiro Kawaguchi, MD, PhD,
  • Hirofumi Fujishiro, MD, PhD,
  • Youichi Miyaoka, MD, PhD,
  • Mika Yuki, MD, PhD,
  • Yoshinori Kushiyama, MD, PhD,
  • Akiko Yasugi, MD, PhD,
  • Michiko Shabana, MD, PhD,
  • Koichirou Furuta, MD, PhD,
  • Kiwamu Tanaka, MD, PhD,
  • Masaharu Koda, MD, PhD,
  • Tetsuro Hamamoto, MD, PhD,
  • Yuichiro Sasaki, MD, PhD,
  • Hisao Tanaka, MD, PhD,
  • Teiji Yoshimura, MD,
  • Yoshikazu Murawaki, MD, PhD,
  • Hajime Isomoto, MD, PhD,
  • Yoshikazu Kinoshita, MD, PhD

DOI
https://doi.org/10.1016/j.curtheres.2017.03.006
Journal volume & issue
Vol. 84, no. C
pp. 32 – 36

Abstract

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Background: Although antithrombotic agents are widely used for cardiac and cerebrovascular disease prevention, they increase the risk of gastrointestinal (GI) bleeding. Objective: To examine GI bleeding risk in association with an esophagogastroduodenoscopy (EGD) biopsy performed in patients without cessation of antithrombotic therapy. Methods: This study was prospectively conducted at 14 centers. EGD biopsies were performed in patients receiving antithrombotic agents without cessation, as well as age- and sex-matched controls not receiving antithrombotic therapy. Patients treated with warfarin before the biopsy had a prothrombin time-international normalized ratio level <3.0. The proportion of GI bleeding events was compared between the groups. Results: The patient group (n = 277) underwent a total of 560 biopsies while continuing antithrombotic therapy, of whom 24 were receiving multiple antiplatelet drugs, and 9 were receiving both antiplatelet and anticoagulant agents. The control patients (n = 263) underwent 557 biopsies. The upper-GI bleeding rate within 30 days after the EGD biopsy did not increase in patients without cessation of antithrombotic treatment, regardless of receiving single or multiple antithrombotic agents. Conclusions: We found no significant increase in upper-GI bleeding risk following an EGD biopsy in patients taking antithrombotic agents, suggesting its safety without the need for antithrombotic treatment interruption.

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