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  • Title: Economic and health consequences of managing bradycardia with dual-chamber compared to single-chamber ventricular pacemakers in Italy.
    Author: Deniz HB, Caro JJ, Ward A, Moller J, Malik F.
    Journal: J Cardiovasc Med (Hagerstown); 2008 Jan; 9(1):43-50. PubMed ID: 18268418.
    Abstract:
    OBJECTIVE: This study sought to estimate the economic implications of managing bradycardia due to sinoatrial node disease or atrioventricular block with dual compared to single-chamber ventricular pacemakers from an Italian government perspective. Dual-chamber pacemakers lower the risk of developing atrial fibrillation and pacemaker syndrome. METHODS: A discrete event simulation of a patient's course for 5 years following pacemaker implantation. Each patient may experience the following: complications, pacemaker syndrome, atrial fibrillation, stroke, or death. Risk functions were based on published data from the Canadian Trial of Physiologic Pacing and Mode Selection Trial in Sinus-Node Dysfunction. Identical patients were simulated after receiving a single or dual-chamber pacemaker. Quality-adjusted life-years (QALYs) and direct medical costs were estimated (2004 Euros). Benefits and costs were discounted at 3%. RESULTS: The model predicts that implanting the dual-chamber device in 1000 patients will prevent 36 patients from developing atrial fibrillation, 168 from developing severe pacemaker syndrome, but will lead to 13 additional hospitalizations with complications over 5 years. Health benefits are achieved at an incremental cost of 23 euros per patient, and 0.09 QALY, yielding an incremental cost-effectiveness ratio of euro 260 euros/QALY. Sensitivity analysis shows that device replacement rates due to pacemaker syndrome have the biggest impact on the final results. CONCLUSIONS: In the long term, higher initial costs of the dual-chamber device may be offset by a reduction in costs associated with reoperations and atrial fibrillation.
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