PMID- 18989525 OWN - NLM STAT- MEDLINE DCOM- 20081222 LR - 20081107 IS - 0340-6245 (Print) IS - 0340-6245 (Linking) VI - 100 IP - 5 DP - 2008 Nov TI - Comparison of the two-year outcomes and costs of prophylaxis in medical patients at risk of venous thromboembolism. PG - 810-20 AB - A decision-analytic model incorporating a Markov process to assess the incremental cost and effectiveness of venous thromboembolism (VTE) prevention strategies was used. Modeling was carried out using a hypothetical cohort of medical patients at risk of VTE. The model compared clinical effectiveness (primary and recurrent VTE, death), safety (adverse events), and direct medical costs between patients receiving enoxaparin prophylaxis, unfractionated heparin (UFH) prophylaxis, and no prophylaxis (n = 10,000 for each arm). Monte Carlo simulation was performed to identify changes in inputs that would affect the results. The estimated incidence ofVTE at two years (including recurrent VTE) was 6.8% with enoxaparin prophylaxis, 7.9% with UFH prophylaxis, and 17.9% with no prophylaxis. Two-year mortality occurred in 15.7% of enoxaparin patients and 16.0% of UFH patients, with the incidences of major bleeding in these groups being 0.7% and 1.2%, respectively. However, both enoxaparin and UFH prophylaxis were associated with higher rates of major bleeds than no prophylaxis (0.6%). Total average costs per patient were (US dollars) $1,264 (for enoxaparin prophylaxis, $1,585 for UFH prophylaxis, and $2,245 for no prophylaxis). No realistic parameter changes resulted in enoxaparin prophylaxis being more costly than UFH prophylaxis. For the healthcare payer, considering all direct medical costs associated with VTE up to two years after an admission for acute illness, prophylaxis with enoxaparin was more effective and less costly than UFH. This identifies enoxaparin as a potentially favorable VTE prophylaxis regimen compared with UFH and no prophylaxis in at-risk medical patients. FAU - Deitelzweig, Steven B AU - Deitelzweig SB AD - System Department Chair of Hospital Medicine, 1514 Jefferson Hwy, New Orleans, LA 70121, USA. sdeitelzweig@ochsner.org FAU - Becker, Russ AU - Becker R FAU - Lin, Jay AU - Lin J FAU - Benner, Josh AU - Benner J LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Germany TA - Thromb Haemost JT - Thrombosis and haemostasis JID - 7608063 RN - 0 (Anticoagulants) RN - 0 (Enoxaparin) RN - 9005-49-6 (Heparin) SB - IM MH - *Anticoagulants/adverse effects/economics/therapeutic use MH - Cost-Benefit Analysis MH - Direct Service Costs MH - Drug Costs MH - *Enoxaparin/adverse effects/economics/therapeutic use MH - *Health Care Costs MH - Hemorrhage/chemically induced/economics MH - *Heparin/adverse effects/economics/therapeutic use MH - Hospital Costs MH - Humans MH - Insurance, Health, Reimbursement MH - Markov Chains MH - Models, Economic MH - Recurrence MH - Reproducibility of Results MH - Risk Assessment MH - Risk Factors MH - Treatment Outcome MH - *Venous Thromboembolism/economics/etiology/mortality/prevention & control EDAT- 2008/11/08 09:00 MHDA- 2008/12/23 09:00 CRDT- 2008/11/08 09:00 PHST- 2008/11/08 09:00 [pubmed] PHST- 2008/12/23 09:00 [medline] PHST- 2008/11/08 09:00 [entrez] AID - 08110810 [pii] PST - ppublish SO - Thromb Haemost. 2008 Nov;100(5):810-20.