Intermittent claudication: cost-effectiveness of revascularization versus exercise therapy

Radiology
Sybolt O de VriesM G Hunink

Abstract

To compare the costs, effectiveness, and cost-effectiveness of alternative treatment strategies for intermittent claudication. By combining data from the literature and original patient data, a Markov decision model was developed to evaluate the societal cost-effectiveness. Patients presented with previously untreated intermittent claudication, and treatment options were exercise, percutaneous transluminal angioplasty (with stent placement, if necessary), and/or bypass surgery. Treatment strategies were defined as the initial therapy in combination with secondary treatment options should the initial therapy fail. The main outcome measures were quality-adjusted life days, expected lifetime costs (in 1995 U.S. dollars), and incremental cost-effectiveness ratios. Compared with an exercise program, revascularization (either angioplasty or bypass surgery) improved effectiveness by 33-61 quality-adjusted life days among patients with no history of coronary artery disease. The incremental cost-effectiveness ratio was $38,000 per quality-adjusted life year gained when angioplasty was performed whenever feasible, as compared with exercise alone, and $311,000 with additional bypass surgery. The incremental cost-effectiveness ratios were ...Continue Reading

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