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A Canadian cost-effectiveness analysis of transcatheter mitral valve repair with the MitraClip system in high surgical risk patients with significant mitral regurgitation.

Abstract：

OBJECTIVE:In patients with significant mitral regurgitation (MR) at high risk of mortality and morbidity from mitral valve surgery, transcatheter mitral valve repair with the MitraClip System is associated with a reduction in MR and improved quality-of-life and functional status compared with baseline. The objective was to evaluate the cost-effectiveness of MitraClip therapy compared with standard of care in patients with significant MR at high risk for mitral valve surgery from a Canadian payer perspective. METHODS:A decision analytic model was developed to estimate the lifetime costs, life years, quality-adjusted life years (QALYs), and incremental cost per life year and QALY gained for patients receiving MitraClip therapy compared with standard of care. Treatment-specific overall survival, risk of clinical events, quality-of-life, and resource utilization were obtained from the Endovascular Valve Edge-to-Edge REpair High Risk Study (EVEREST II HRS). Health utility and unit costs (CAD $2013) were taken from the published literature. Sensitivity analyses were conducted to explore the impact of alternative assumptions and parameter uncertainty on results. RESULTS:The base case incremental cost per QALY gained was $23,433. RESULTS were most sensitive to alternative assumptions regarding overall survival, time horizon, and risk of hospitalization for congestive heart failure (CHF). Probabilistic sensitivity analysis showed MitraClip therapy to have a 92% chance of being cost-effective compared with standard of care at a willingness-to-pay threshold of $50,000 per QALY gained. STUDY LIMITATIONS:Key limitations include the small number of patients included in the EVEREST II HRS which informed the analysis, the limited data available to inform clinical events and disease progression in the concurrent comparator group, and the lack of a comparator group from a randomized control trial. CONCLUSION:MitraClip therapy is likely a cost-effective option for the treatment of patients at high risk for mitral valve surgery with significant MR.

journal_name

J Med Econ

journal_title

Journal of medical economics

authors

Cameron HL,Bernard LM,Garmo VS,Hernandez JB,Asgar AW

doi

10.3111/13696998.2014.923892

subject

Has Abstract

pub_date

2014-08-01 00:00:00

pages

599-615

issue

eissn

1369-6998

issn

1941-837X

journal_volume

pub_type

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A Canadian cost-effectiveness analysis of transcatheter mitral valve repair with the MitraClip system in high surgical risk patients with significant mitral regurgitation.