Document Information Content Entity Continuant Continuant Conference Poster Entity Entity Generically Dependent Continuant 2025-05-07T20:36:53 RDF description of Effect of low molecular weight heparin and procedure type on re-operative hematoma [poster] - http://repository.healthpartners.com/individual/document-rn30703 document-rn30703 Cardiovascular Diseases Prevention 2022-02-21T22:48:57.408-06:00 Drugs and Drug Therapy poster public 20494 <p>Introduction: <br>The PSEF-funded Venous Thromboembolism Prevention (VTEP) study is evaluating the efficacy of post-operative LMWH for venous thromboembolism (VTE) prevention in plastic surgery patients. In preliminary analysis of the VTEP database, we evaluated rates of operative hematoma formation when post-operative LMWH is and is not used. Additionally, we examined the relationship between procedure type and hematoma formation in patients not receiving LMWH prophylaxis. <br>Methods: <br>In June 2008, each institution implemented a clinical protocol for VTE prophylaxis, which included pre-operative risk stratification and post-operative LMWH. The control group did not receive LMWH. Chart reviews identified thromboembolic and bleeding complications for 60 days post-operatively. We examined rates of post-operative hematoma, stratified by receipt of LMWH and procedure type. <br>Results:<br>Our mid-term analysis of the database identified 325 patients who received post-operative LMWH and 941 patients who did not. The hematoma rate requiring surgical drainage, irrespective of procedure, showed no significant difference (p=0.78) between patients who received post-operative LMWH (2.40%) and those who did not (2.69%). Among patients not receiving LMWH, those having breast surgery were at disproportionate risk for hematoma development. Breast reduction patients comprised 4% of the dataset but represented 23% of patients with post-operative hematomas. Similar trends were seen for breast reconstruction and cosmetic breast surgery.<br>Conclusion:<br>In this mid-term analysis of VTEP data, post-operative LMWH did not significantly affect overall post-operative hematoma rates. In patients not receiving LMWH, breast surgery patients were at disproportionately increased risk for re-operative hematomas. At this time the number of patients is not adequate to evaluate whether decisions regarding VTE prophylaxis should consider procedure type.<p> Surgery 35088 Effect of low molecular weight heparin and procedure type on re-operative hematoma [poster]