Venous Thromboembolism Prophylaxis among Medical Patients at US Hospitals
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Chemoprophylaxis is recommended for medical patients at moderate to high risk of venous thromboembolism (VTE) and is now a requirement of the Joint Commission on Accreditation of Healthcare Organizations. To see who receives prophylaxis and how far hospitals will need to go to meet this requirement, we examined VTE prophylaxis patterns at US hospitals.
We conducted a retrospective cohort study of adult patients with seven medical diagnoses considered to carry moderate to high risk of VTE at 376 acute care facilities in 2004–2005. We excluded patients on warfarin or with hospital stays of <2 days. VTE prophylaxis was assessed by billing codes for any heparin or compression device. We classified patient risk using a VTE risk prediction model.
Of 351,535 patients included, 36% received prophylaxis by hospital day 2. Prophylaxis rates were highest among patients with certain VTE risk factors, including mechanical ventilation (67%), restraints (57%), central lines (55%), obesity (46%), and prior VTE (44%). The median hospital rate was 31% (IQR 19% to 42%); only 3% of hospitals had rates >70%. Compared to patients at low risk of VTE (<0.05%), patients at high risk (>1.0%) were more likely to receive prophylaxis (52% vs. 34%, p < 0.001). Hospitals with high rates of prescribing for high-risk patients also had high rates for low-risk patients.
VTE prophylaxis rates at US hospitals are substantially below Joint Commission targets, even for patients at highest risk of VTE.
- Venous Thromboembolism Prophylaxis among Medical Patients at US Hospitals
Journal of General Internal Medicine
Volume 25, Issue 6 , pp 489-494
- Cover Date
- Print ISSN
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- venous thromboembolism (VTE)
- hospital mortality
- Industry Sectors
- Author Affiliations
- 1. Center for Quality of Care Research, Baystate Medical Center, Springfield, MA, USA
- 2. Division of General Medicine and Geriatrics, Baystate Medical Center, 759 Chestnut Street, Springfield, MA, 01199, USA
- 3. Department of Medicine, Tufts University School of Medicine, Boston, MA, USA
- 4. Department of Biostatistics, University of Massachusetts School of Public Health, Amherst, MA, USA