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. 2023 Feb 25;11(1):50-58.
eCollection 2023.

The effects of continuing aspirin on blood loss and postoperative outcomes in percutaneous nephrolithotomy

Emma Rosenbluth  1 , Christine W Liaw  1 , Jacob N Bamberger  1 , Aisosa Omorogbe  1 , Johnathan A Khusid  1 , Raymond Khargi  1 , Alan J Yaghoubian  1 , Anna Ricapito  1 , Blair Gallante  1 , William M Atallah  1 , Mantu Gupta  1
Affiliations

The effects of continuing aspirin on blood loss and postoperative outcomes in percutaneous nephrolithotomy

Emma Rosenbluth et al. Am J Clin Exp Urol. .

Abstract

Background: Percutaneous nephrolithotomy (PCNL) is an effective surgery for complex kidney stones yet with inherent bleeding risks. It remains unclear whether aspirin should be discontinued prior to PCNL. We aimed to further substantiate the safety of continuing aspirin during PCNL surgery and to determine whether aspirin status affects postoperative outcomes following PCNL.

Methods: We retrospectively queried our endourology database for patients who underwent PCNL from October 2017 to December 2022 at our high-volume tertiary referral center. The three groups were based on aspirin status at the time of PCNL: no aspirin (NA), discontinued aspirin (DA), and continued aspirin (CA). Data collected included demographics, preoperative characteristics, operative parameters, pre and postoperative lab values, transfusions, and complications.

Results: A total 648 patients were divided into these study groups: 525 NA patients (81.0%), 55 DA (8.5%), and 68 CA (10.5%). The DA and CA groups were of similar comorbidities, and both were more comorbid at baseline than NA. Postoperative change in lab values and complications did not differ significantly. Rates of postoperative blood transfusion were higher in the CA and DA groups compared to NA and approached statistical significance. There were no significant differences in any postoperative outcomes between the DA and CA groups alone.

Conclusions: In patients on chronic aspirin therapy, continuing aspirin appears equally safe to discontinuing aspirin prior to PCNL. Most patients should not forego the benefits of continuous aspirin for the theoretical risk of bleeding. Patients on prolonged aspirin therapy may be more likely than those who are not on chronic aspirin therapy to require blood transfusions. However, regardless of whether aspirin use is stopped, this may be caused by patient comorbidities rather than higher rates of blood loss.

Keywords: Percutaneous nephrolithotomy; aspirin; blood loss; kidney calculi.

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Conflict of interest statement

None.

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