恩帕格利弗洛辛对心力衰竭的右心室功能的影响,心脏衰竭与减少的射出分数
medRxiv : the preprint server for health sciences
|June 12, 2025
概括
在心力衰竭患者中,empagliflozin没有改善整体右心室功能. 然而,它显著增强了RV功能,在患者的最低基线RV自由壁应变.
科学领域:
- 心脏病学 心脏病学
- 药理学 药理学是指药理学的学科.
- 医学研究 医学研究
背景情况:
- 众所周知,像empagliflozin这样的-葡萄糖共运输体-2 (SGLT2) 抑制剂可以改善心力衰竭与减少射出分数 (HFrEF) 的结果.
- 在HFrEF患者中,SGLT2抑制剂对右心室 (RV) 功能的特定影响尚未得到充分证实.
- 这项研究旨在澄清empagliflozin对这种患者群体RV功能的影响.
研究的目的:
- 调查empagliflozin在诊断为心力衰竭与减少射出小部分 (HFrEF) 的患者中改善右心室 (RV) 功能方面的疗效.
- 评估RV自由壁应变 (RVFWS) 的变化,作为RV功能的主要指标.
- 根据基线RV功能严重程度,探索empagliflozin的潜在差异效应.
主要方法:
- 帝国HF试验是一项随机,双盲研究,涉及190名HFrEF患者 (LVEF ≤40%).
- 参与者每天接受10毫克的empagliflozin或安慰剂12周.
- 主要终点是RV自由壁应变 (RVFWS);次要终点包括TAPSE和RV S'速度.
主要成果:
- 在empagliflozin和安慰剂组之间没有观察到总体RV自由壁应变 (RVFWS) 的显著差异.
- 基线RVFWS最低三位数的患者表现出对empagliflozin的显著改善 (治疗效果:-2.9%;P=0.027).
- 在中间或最高的RVFWS第三层,或TAPSE和RV S'速度没有显著的改善.
结论:
- 在稳定的HFrEF患者中,empagliflozin对右心室功能没有整体益处.
- 在基线RV功能最受损的患者 (最低三位数) 中,观察到RV自由壁应变的显著改善.
- 这些发现表明empagliflozin在HFrEF患者的特定亚组中具有潜在的益处,HFrEF患者的RV功能受损.
相关概念视频
01:26Heart Failure Drugs: Inhibitors of Renin-Angiotensin System
396
The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
396
01:17Pathophysiology of Heart Failure
1.5K
Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
1.5K
01:22Heart Failure Drugs: Diuretics
349
Heart failure and kidney perfusion are interconnected in a complex way. Reduced renal perfusion and venous congestion are two significant factors that contribute to renal dysfunction in heart failure. The kidneys, primarily responsible for fluid balance in the body, are adversely affected due to compromised cardiac output and increased venous pressure. In response to reduced renal perfusion, the kidneys activate neurohumoral mechanisms to restore balance. However, these mechanisms can be...
349
01:22Heart Failure Drugs: β-Blockers
320
β-adrenergic antagonists, commonly known as β-blockers, block the effects of sympathetic neurotransmitters such as noradrenaline (NA) and adrenaline (ADR). They have several beneficial effects in heart failure treatment. They reduce heart rate, the force of contraction, and cardiac muscle relaxation. They also slow the atrial-ventricular conduction rate and raise the threshold for arrhythmias. The concentration of β-blockers determines their effects on bronchodilation,...
320