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Effect of Continued Administration of Low-dose Aspirin for Intraoperative Bleeding Control in Gastric Endoscopic
Yohei Horikawa1, Hiroya Mizutamari2, Nobuya Mimori2
1Department of Gastroenterology, Hiraka General Hospital, Yokote, Japan, horikawa_01@me.com.
Insights
Low-dose aspirin (LDA) can be safely continued during gastric endoscopic submucosal dissection (ESD). This study found no significant increase in intraoperative bleeding when LDA was not stopped before the procedure.
Area of Science:
- Gastroenterology
- Endoscopy
- Oncology
Background:
- Antithrombotic agents are increasingly used for cerebro-cardioembolic event prevention.
- Guidelines suggest continuing low-dose aspirin (LDA) during high-bleeding-risk endoscopic procedures.
- The impact of LDA on intraoperative bleeding during Endoscopic submucosal dissection (ESD) is not well understood.
Purpose of the Study:
- To evaluate the safety and influence of continuing low-dose aspirin (LDA) on intraoperative bleeding control during gastric Endoscopic submucosal dissection (ESD).
Main Methods:
- A comparative study of 293 gastric cancer patients undergoing ESD.
- 52 patients on LDA were propensity-score matched (PSM) with 241 patients not on antithrombotics.
- Outcomes including intraoperative bleeding, procedure time, and resection success were analyzed.
Main Results:
- PSM analysis of 50 pairs showed similar intraoperative major bleeding rates between LDA and control groups (1 vs. 0 instances).
- Procedure time, hemoglobin decrease, en bloc resection, and complete resection rates were comparable.
- Postoperative bleeding occurred in 1.9% of the LDA group; no perforations or thromboembolisms were observed.
Conclusions:
- Gastric ESD can be performed safely without discontinuing low-dose aspirin (LDA).
- Continuing LDA does not appear to significantly increase intraoperative bleeding risk during gastric ESD.
Background:
The use of antithrombotic agents for the prevention of cerebro-cardioembolic events has increased, and recent guidelines have recommended the continued administration of low-dose aspirin (LDA) during endoscopic procedures with a high risk of bleeding. However, the influence of LDA on intraoperative bleeding control status during Endoscopic submucosal dissection (ESD) remains unclear.
Methods:
We examined 293 consecutive patients who underwent ESD for gastric cancers between January 2014 and February 2018. Patients administered with LDA (n = 52) were compared with those without antithrombotic therapy (n = 241; control) by propensity-score matching (PSM) concerning outcomes of ESD.
Results:
PSM analysis yielded 50 matched pairs. Comparison showed similar values for frequency of intraoperative major bleeding: 1 (0-4) times (median [range]) in the LDA group and 0 (0-5) in the control group respectively (p = 0.710). Others (frequency of preventive coagulation, procedure time, decrease of hemoglobin levels, en bloc resection, complete resection) were the same with a few adverse events including perforation (0%), and thromboembolism (0%). Postoperative bleeding rate was 1.9% in LDA group. Multivariate analysis indicated that location U and circumference on the posterior wall were associated with for multiple major intraoperative bleeding.
Conclusion:
The study suggests that gastric ESD can be safely accomplished without cessation of LDA.
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