Schmier Jordana K, Ong Kevin L, Fonarow Gregg C
Department of Health Sciences Exponent, Alexandria, Virginia.
Department of Biomedical Engineering, Exponent, Philadelphia, Pennsylvania.
Clin Cardiol. 2017 Jul;40(7):430-436. doi: 10.1002/clc.22696. Epub 2017 Mar 8.
Heart failure (HF) is a leading cause of cardiovascular mortality in the United States and presents a substantial economic burden. A recently approved implantable wireless pulmonary artery pressure remote monitor, the CardioMEMS HF System, has been shown to be effective in reducing hospitalizations among New York Heart Association (NYHA) class III HF patients. The objective of this study was to estimate the cost-effectiveness of this remote monitoring technology compared to standard of care treatment for HF. A Markov cohort model relying on the CHAMPION (CardioMEMS Heart Sensor Allows Monitoring of Pressure to Improve Outcomes in NYHA Class III Heart Failure Patients) clinical trial for mortality and hospitalization data, published sources for cost data, and a mix of CHAMPION data and published sources for utility data, was developed. The model compares outcomes over 5 years for implanted vs standard of care patients, allowing patients to accrue costs and utilities while they remain alive. Sensitivity analyses explored uncertainty in input parameters. The CardioMEMS HF System was found to be cost-effective, with an incremental cost-effectiveness ratio of $44,832 per quality-adjusted life year (QALY). Sensitivity analysis found the model was sensitive to the device cost and to whether mortality benefits were sustained, although there were no scenarios in which the cost/QALY exceeded $100,000. Compared with standard of care, the CardioMEMS HF System was cost-effective when leveraging trial data to populate the model.
心力衰竭(HF)是美国心血管疾病死亡的主要原因,并带来了巨大的经济负担。最近获批的一款可植入式无线肺动脉压力远程监测器——CardioMEMS HF系统,已被证明能有效减少纽约心脏协会(NYHA)III级HF患者的住院次数。本研究的目的是评估这种远程监测技术与HF标准治疗方案相比的成本效益。我们开发了一个马尔可夫队列模型,该模型依据CHAMPION(CardioMEMS心脏传感器可监测压力以改善NYHA III级心力衰竭患者预后)临床试验获取死亡率和住院数据,依据已发表资料获取成本数据,并综合CHAMPION数据和已发表资料获取效用数据。该模型比较了植入该系统的患者与接受标准治疗的患者在5年期间的预后情况,让患者在存活期间积累成本和效用。敏感性分析探讨了输入参数的不确定性。结果发现,CardioMEMS HF系统具有成本效益,增量成本效益比为每质量调整生命年(QALY)44,832美元。敏感性分析发现,该模型对设备成本以及死亡率益处是否持续存在较为敏感,不过不存在成本/ QALY超过10万美元的情况。与标准治疗相比,在利用试验数据填充模型时,CardioMEMS HF系统具有成本效益。