Division of Medicine, Akershus University Hospital and University of Oslo, Oslo, Norway.
Division of Cardiology, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Curr Opin Cardiol. 2021 Jul 1;36(4):413-419. doi: 10.1097/HCO.0000000000000852.
Hypertension remains a leading risk factor for heart failure with preserved ejection fraction (HFpEF), and elevated blood pressure (BP) portends an adverse prognosis in patients with established HFpEF. We summarize current evidence for mechanisms linking hypertension to HFpEF and management of hypertension in HFpEF.
Data suggest a complex, multifactorial pathophysiology driving the association between hypertension and HFpEF, including left ventricular hypertrophy, diastolic dysfunction, atrial dysfunction, coronary microvascular disease, endothelial dysfunction, myocardial injury and fibrosis. Although intensive BP control may attenuate these processes, this hypothesis has not been tested on clinical outcomes in a dedicated randomized controlled trial (RCT) in HFpEF. Antihypertensive therapies variably improve key surrogate markers in HFpEF, though BP reduction generally does not account for these benefits. Accordingly, BP targets are extrapolated from observational studies and RCTs testing heart failure therapies that affect BP in addition to dedicated RCT data in patients at elevated risk (without heart failure).
Clinicians should recognize the risk of disease progression and poor outcomes associated with uncontrolled hypertension in HFpEF. Intensive BP control, preferably by therapies known to improve outcomes in heart failure, may slow key pathways in disease progression. Future RCTs testing intensified BP control strategies in HFpEF are warranted.
高血压仍然是射血分数保留心力衰竭(HFpEF)的主要危险因素,血压升高预示着 HFpEF 患者预后不良。我们总结了目前关于高血压与 HFpEF 之间关联的机制以及 HFpEF 中高血压管理的证据。
数据表明,高血压与 HFpEF 之间的关联存在复杂的多因素病理生理学,包括左心室肥厚、舒张功能障碍、心房功能障碍、冠状动脉微血管疾病、内皮功能障碍、心肌损伤和纤维化。虽然强化血压控制可能减轻这些过程,但这一假设尚未在 HFpEF 的专门随机对照试验(RCT)中对临床结局进行测试。降压治疗可不同程度地改善 HFpEF 中的关键替代标志物,但血压降低通常不能解释这些益处。因此,血压目标是从观察性研究和除了专门针对高危患者(无心力衰竭)的 RCT 数据之外,还测试了除了影响血压的心力衰竭治疗的 RCT 中推断得出的。
临床医生应认识到 HFpEF 中未控制的高血压与疾病进展和不良结局相关的风险。强化血压控制,最好通过已知能改善心力衰竭结局的治疗方法,可能会减缓疾病进展的关键途径。需要在 HFpEF 中测试强化血压控制策略的未来 RCT。