Resumo

LOPEZ GUDE, María Jesús; RODRIGUEZ BEZOS, Desiré  e  RODRIGUEZ BARRIOS, José Manuel. Cost-utility analysis of concomitant atrial fibrillation management in Spain. Gac Sanit [online]. 2010, vol.24, n.1, pp.59-65. ISSN 0213-9111.

Objectives: Atrial fibrillation (AF) is the most common arrhythmia in clinical practice; this disorder is a risk factor for stroke and is associated with substantial morbidity and mortality. Our objective was to develop a cost-utility analysis of the different treatment alternatives in patients aged 40 years old or more with concomitant AF with valve disease in Spain, from the National Health System perspective. Methods: An economic evaluation through a Markov model with four health states (sinus rhythm, AF, dependent stroke, death) was developed to simulate the evolution of a cohort of 1,000 patients receiving each treatment alternative in addition to mitral valve surgery (drug therapy, surgical ablation and catheter ablation). The time horizon was 5 years, with a cycle length of 3 months. Data on costs and effects were obtained from the published literature and expert opinion and were discounted at 3.5%. A sensitivity analysis was developed to determine the robustness of the results. Results: The quality-adjusted life years (QALY) gained were 3.29, 3.89, and 3.83, respectively, for the alternatives of no ablation, surgical ablation and catheter ablation. The costs per patient were 5,770€, 10,034€ and 11,289€, respectively. The surgical ablation cost/QALY rate compared with no ablation was 7,145€. Surgical ablation was dominant versus catheter ablation. The probabilistic sensitivity analysis showed that the results were robust. Conclusions: Surgical ablation is a cost-effective treatment option in patients with concomitant AF, with a cost-effectiveness ratio under the efficiency threshold commonly accepted in Spain.

Palavras-chave : Cost-utility; Cost-effectiveness; Atrial fibrillation; Surgical ablation.

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