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Use of Thromboprophylaxis after Autologous Breast Reconstruction: A Cost-Effective Break-Even Analysis.

PLASTIC AND RECONSTRUCTIVE SURGERY(2024)

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摘要
Background:Postoperative venous thromboembolism (VTE) is a major source of morbidity and mortality. The use of thromboprophylaxis among surgeons is not well studied in autologous breast reconstruction. The purpose of this study was to determine the rate of VTE in patients with breast cancer undergoing autologous breast reconstruction and to compare the cost-effectiveness of postoperative chemoprophylactic agents.Methods:The TriNetX National Health Research Network database was used to identify patients with breast cancer who underwent autologous breast reconstruction surgery between 2002 and 2022. The incidence of VTE within the first 30 days of surgery was calculated. A break-even analysis was performed to determine the break-even rate of VTE at which a chemoprophylactic agent would be cost-effective.Results:A cohort of 8221 patients was identified in this study. The rate of VTE was significantly higher in those without anticoagulation (4.0%) compared with those who received anticoagulation (2.6%) (P = 0.0008). The break-even analysis for heparin and enoxaparin cost-effectiveness yielded absolute risk reductions of 0.73% and 1.63% for high-risk patients requiring 30 days of therapy and 0.20% and 0.43% for moderate-risk patients requiring 7 days of therapy, respectively.Conclusions:The use of thromboprophylaxis significantly lowered the risk of VTE within 30 days after autologous breast reconstruction. Heparin appeared to be more cost-effective at preventing VTE compared with enoxaparin for both high- and moderate-risk patients. The presented model holds potential for other institution-specific variables that can be easily applied by plastic surgeons to determine the cost-effectiveness of any therapy.CLINICAL QUESTION/LEVEL OF EVIDENCE:Therapeutic, III.
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