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https://www.selleckchem.com/products/sel120.html Antiretroviral therapy has improved the life expectancy of HIV patients, leading to an increase in total joint replacement for age-related osteoarthritis. HIV patients are inherently hypercoagulable at baseline. The goal of our study was to compare the incidence of venous thromboembolism (VTE) in HIV patients with HIV-negative controls after total joint replacement. A multicenter, retrospective cohort study of 110 HIV patients (85 hips and 25 knees) and 240 HIV-negative controls (180 hips and 85 knees) between 2000 and 2018. Prophylactic anticoagulation was used in 98% of patients postoperatively-low-molecular weight heparin (73%), warfarin (19%), aspirin (6%), and clopidogrel (1%). The VTE rate was 3.6% in the HIV-positive group (2.5% total hip arthroplasty [THA] and 8.0% total knee arthroplasty [TKA]) and 0.4% in the control group (0% THA and 1.7% TKA). VTEs occurred at the median (interquartile range) time of 40 days (1 to 52) post-op in the HIV group and 3 days post-op in the one control. Multivariable logistic regression adjusting for sex, smoking, history of VTE, and joint replaced identified HIV as an independent predictor of VTE (odds ratio 10.9, 95% confidence interval 1.1 to 114.0, P = 0.046). All patients with VTE were treated with warfarin (5 to 9 months); two cases were complicated by hemarthrosis and excessive bleeding at the insulin injection site. We observed increased rates of symptomatic VTE in HIV patients after THA (2.5%) and TKA (8%) compared with HIV-negative control patients (0% and 1.7%, respectively). HIV positivity was identified as an independent predictor of perioperative VTE. Our data suggests that HIV patients may be at higher risk for post-op VTE than HIV-negative patients. Surgeons may want to consider the use of more potent anticoagulation (ie, warfarin or novel anticoagulants) for a longer duration in HIV-positive patients. However, further studies are necessary to form evidence-based

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