Management of Patients Receiving Antiplatelet Therapy During Gastroenterological Surgery

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OBJECTIVE: This study aimed to evaluate the effect of continuing preoperative aspirin monotherapy on surgical outcomes in patients receiving antiplatelet therapy (APT). BACKGROUND: The effectiveness of continuing preoperative aspirin monotherapy in patients undergoing APT in preventing thromboembolic consequences is mostly unknown. METHODS: This prospective multicenter cohort study on the Safety and Feasibility of Gastroenterological Surgery in Patients Undergoing Antithrombotic Therapy (GSATT study) conducted at 14 clinical centers enrolled and screened patients between October 2019 and December 2021. The participants (n=1170) were assigned to the continued-APT group, discontinued-APT group, or non-APT group, and the surgical outcomes of each group were compared. Propensity score matching was performed between the continued and discontinued-APT groups to investigate the effect of continuing preoperative aspirin therapy on thromboembolic complications. RESULTS: The rate of thromboembolic complications in the continued-APT group was substantially lower than that in the non-APT or discontinued-APT groups (0.5% vs 2.6% vs. 2.9%; P =0.027). Multivariate investigation of the entire cohort revealed that discontinuation of APT ( P <0.001) and chronic anticoagulant use ( P <0.001) were independent risk factors for postoperative thromboembolism. The post-matching evaluation demonstrated that the rates of thromboembolic complications were significantly different between the continued and discontinued-APT groups (0.6% vs 3.3%; P =0.012). CONCLUSIONS: APT discontinuation after elective gastroenterological surgery increases the risk of thromboembolic consequences, whereas continuing preoperative aspirin greatly reduces this risk. The continuation of preoperative aspirin therapy in APT-received patients is considered one of the best alternatives for preventing thromboembolism during elective gastroenterological surgery.

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