Department of Emergency Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
Curr Hypertens Rep. 2018 Feb 24;20(1):9. doi: 10.1007/s11906-018-0809-7.
In spite of advances in our understanding of acute heart failure (AHF) and its different phenotypic expressions, AHF management is still centered on volume removal with intravenous diuretics. This narrative review describes the pathophysiology underlying hypertensive AHF and appraises therapies targeting these mechanisms.
Vascular redistribution rather than volume overload may be the primary determinant of elevated cardiac filling pressures and subsequent pulmonary congestion in patients with hypertensive AHF; in these patients, vasodilators should be the predominant treatment. Additional therapy with diuretics in hypertensive AHF should be relegated to the treatment of overt volume overload or persistent congestion in spite of optimized hemodynamics. Intravenous nitroglycerin at high doses can rapidly achieve pulmonary decongestion and reduce downstream critical care needs in these patients. The therapeutic role for synthetic peptides with vasodilator properties has yet to be defined. Evidence supporting both old and new vasodilator therapies is limited by a paucity of well-designed studies and failure to demonstrate improvement in long-term outcomes. Targeted study of this phenotype of AHF is needed before vasodilator therapies become incorporated into treatment guidelines.
尽管我们对急性心力衰竭(AHF)及其不同表型的认识有所提高,但 AHF 的治疗仍集中在通过静脉利尿剂去除容量。本叙述性综述描述了高血压性 AHF 的病理生理学,并评估了针对这些机制的治疗方法。
血管再分布而不是容量超负荷可能是导致高血压性 AHF 患者心内充盈压升高和随后肺充血的主要决定因素;在这些患者中,血管扩张剂应是主要治疗方法。尽管进行了最佳的血流动力学治疗,但在高血压性 AHF 患者中,利尿剂的额外治疗应仅限于治疗明显的容量超负荷或持续充血。高剂量静脉硝酸甘油可迅速实现肺充血消退,并降低这些患者的下游重症监护需求。具有血管扩张特性的合成肽的治疗作用尚未确定。支持旧的和新的血管扩张治疗的证据受到缺乏精心设计的研究和未能证明长期结局改善的限制。在血管扩张治疗纳入治疗指南之前,需要对这种 AHF 表型进行针对性研究。