Division of General Internal Medicine, University of Michigan (J.S., S.V., R.H.), and the Center for Clinical Management Research, Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, MI (J.S., S.V., R.H.).
Circulation. 2013 Nov 19;128(21):2309-17. doi: 10.1161/CIRCULATIONAHA.113.002290. Epub 2013 Nov 4.
Current guidelines for prescribing antihypertensive medications focus on reaching specific blood pressure targets. We sought to determine whether antihypertensive medications could be used more effectively by a treatment strategy based on tailored estimates of cardiovascular disease events prevented.
We developed a nationally representative sample of American adults aged 30 to 85 years with no history of myocardial infarction, stroke, or severe congestive heart failure using the National Health and Nutrition Examination Survey III. We then created a simulation model to estimate the effects of 5 years of treatment with treat-to-target (treatment to specific blood pressure goals) and benefit-based tailored treatment (treatment based on estimated cardiovascular disease event reduction) approaches to antihypertensive medication management. All effect size estimates were derived directly from meta-analyses of randomized trials. We found that 55% of the overall population of 176 million Americans would be treated identically under the 2 treatment approaches. Benefit-based tailored treatment would prevent 900 000 more cardiovascular disease events and save 2.8 million more quality-adjusted life-years, despite using 6% fewer medications over 5 years. In the 45% of the population treated differently by the strategies, benefit-based tailored treatment would save 159 quality-adjusted life-years per 1000 treated versus 74 quality-adjusted life-years per 1000 treated by the treat-to-target approach. The findings were robust to sensitivity analyses.
We found that benefit-based tailored treatment was both more effective and required less antihypertensive medication than current guidelines based on treating to specific blood pressure goals.
目前,开具降压药物的指南侧重于达到特定的血压目标。我们试图通过基于估计心血管疾病事件预防的定制治疗策略,确定降压药物是否可以更有效地使用。
我们使用国家健康和营养调查 III 数据,开发了一个具有代表性的美国成年人样本,年龄在 30 至 85 岁之间,没有心肌梗死、中风或严重充血性心力衰竭的病史。然后,我们创建了一个模拟模型,以估计 5 年的治疗效果,包括针对目标的治疗(针对特定血压目标的治疗)和基于获益的定制治疗(基于估计的心血管疾病事件减少的治疗)方法对降压药物管理的影响。所有效果大小的估计值都是直接从随机试验的荟萃分析中得出的。我们发现,在这两种治疗方法下,1.76 亿美国总人口中有 55%的人将接受相同的治疗。基于获益的定制治疗可以预防 90 万例更多的心血管疾病事件,并节省 280 万质量调整生命年,尽管在 5 年内使用的药物减少了 6%。在这两种策略治疗不同的 45%的人群中,基于获益的定制治疗与针对特定血压目标的治疗相比,每治疗 1000 人可节省 159 个质量调整生命年,而每治疗 1000 人可节省 74 个质量调整生命年。研究结果在敏感性分析中是稳健的。
我们发现,与基于特定血压目标治疗的现行指南相比,基于获益的定制治疗不仅更有效,而且需要的降压药物更少。