The Effectiveness of Aspirin for Venous Thromboembolism Prophylaxis for Patients Undergoing Arthroscopic Rotator Cuff Repair.

Venous thromboembolic disease (VTED) is a rare complication following arthroscopic rotator cuff repair (RCR). The American Academy of Orthopaedic Surgeons and the American College of Chest Physicians have no prophylaxis guidelines specific to shoulder arthroscopy, yet many surgeons prescribe aspirin following RCR. The purpose of this study was to evaluate the effectiveness of aspirin and mechanical prophylaxis compared with mechanical prophylaxis alone in preventing VTED following RCR. A total of 914 patients underwent RCR between January 2010 and January 2015. A retrospective case-control study was performed. The control group (n=484) consisted of patients treated with compression boots and early mobilization. The study group (n=430) used compression boots, early mobilization, and 81 mg/d of aspirin. The primary outcome was symptomatic VTED, including deep venous thrombosis (DVT) and pulmonary embolism (PE). A total of 7 VTED events occurred during the study period: 6 DVTs and 1 PE; 1 patient experienced both DVT and PE. The percentage of patients with VTED, DVT, and PE was 0.66%, 0.66%, and 0.11%, respectively. There was no significant difference for DVT or PE between the 2 groups. The incidence of DVT and PE was 0.62% and 0.00%, respectively, for the control group (no aspirin) and 0.70% and 0.23%, respectively, for the study group (aspirin). Aspirin does not lead to a clinically significant reduction in either DVT or PE rate in patients undergoing RCR. The authors conclude that the use of mechanical prophylaxis and early mobilization is a sufficient method of VTED prophylaxis in this low-risk population. [Orthopedics. 2019; 42(2):e187-e192.].

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