Prevention of Venous Thromboembolism: Practice Patterns in 17 Geographically Diverse Long Term Care Facilities in the United States: Part 1 of 2 (an AMDA Foundation Project)

Introduction: Current guidelines recommend antithrombotic prophylaxis for venous thromboembolism (VTE) using risk assessment, factoring contraindications. This report represents a summary of current practice patterns to prevent VTE in long term care as Phase 1 of a 3-phase educational intervention study. Phase 1 Participants: Participants were 376 new admissions/readmissions (77 ± 12 [SD] years; 67% female) from 17 geographically diverse long term care facilities (3260 total beds). Measurements: The process describes current VTE prophylaxis (VTE-P) practices; a companion article describes the educational intervention (Phase 2) and outcome (Phase 3). Phase 1 data were collected on use of nonpharmacological measures and antithrombotic drugs for VTE-P between July and September 2009. Results: Indications for VTE-P were evident in 85% of new admissions, of which two-thirds received VTE-P. Contraindications for anticoagulation were observed in 54.8% of admissions, including quality of life or patient/caregiver wishes. Logistic regression analysis predicted no relationship between any indication for or any contraindication to VTE-P and use of VTE-P, suggesting an inadequate understanding of current clinical practice guidelines. Conclusions: Residents of long term care have significant comorbidity that poses risk for VTE; although many received VTE-P, contraindications were common, warranting individualized considerations. The likelihood of VTE-P was greatest following orthopedic surgery, severe trauma, and medical illness.