老年人中心力衰竭与保存的射出小部分:基本机制和临床考虑
Kimia Gharagozloo1, Mozhdeh Mehdizadeh1, George Heckman2
1Montreal Heart Institute Research Center and Université de Montréal, Montréal, Quebec, Canada; McGill University Departments of Pharmacology and Therapeutics, Montréal, Quebec, Canada.
The Canadian journal of cardiology
|April 11, 2024
概括
在老年人中,心力衰竭与保存的喷射分数 (HFpEF) 是常见的. 这篇评论详细介绍了HFpEF的细节.
科学领域:
- 心脏病学 心脏病学
- 老年病的医生 老年病的医生
- 内部医学 内部医学
背景情况:
- 保持喷射分数的心力衰竭 (HFpEF) 呈现出心力衰竭症状,尽管喷射分数正常.
- 高高峰度的pEF在老年人群中尤为普遍,因此需要对与年龄相关的方面有着专注的理解.
- 现有的HFpEF定义已经演变,目前的指导方针使用50%的射出分数切断值.
研究的目的:
- 审查有关HFpEF的现有文献,特别是在老年患者中.
- 检查与年龄相关的证据,明显的临床特征和老年人HFpEF的潜在机制.
- 确定知识差距和未来的研究方向,以改善老年人HFpEF结果.
主要方法:
- 关于老年患者高FpEF可用的文献的叙述性综述.
- 对流行病学数据,临床表型,脆弱性,生物标志物和医学疗法的分析.
- 讨论基本的病理生理机制,包括细胞衰老,纤维化,炎症和代谢变化.
主要成果:
- 在老年人中,HFpEF表现出特定的临床表型,受脆弱性等因素的影响.
- 讨论了一系列医学疗法,包括SGLT2抑制剂和ARNI,以了解它们在管理HFpEF方面的作用.
- 多种潜在机制有助于与年龄相关的HFpEF风险,例如细胞衰老,炎症和胰岛素抵抗.
结论:
- 了解HFpEF的特定年龄的临床表现和机制对于老年人来说至关重要.
- 针对这些机制为新的诊断和治疗策略提供了潜力.
- 需要改进的方法来提高HFpEF的脆弱老年人群的结果.
相关概念视频
Pathophysiology of Heart Failure
1.6K
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...
1.6K
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System
422
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...
422
Imbalances in Cardiac Output
1.4K
The heart's primary function is to pump blood throughout the body, maintaining a balance between blood sent out (cardiac output) and blood returning (venous return). If this balance is disrupted, it can result in congestive heart failure (CHF), a severe condition where the heart becomes an inefficient pump, leading to inadequate blood circulation.
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send...
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send...
1.4K
Heart Failure Drugs: β-Blockers
337
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,...
337
Heart Failure Drugs: Diuretics
370
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...
370
Pathophysiology of Cardiac Performance
645
Typical heart performance is influenced by heart rate, rhythm, myocardial contraction, and metabolism or blood flow. The cardiac muscle exhibits distinct electrophysiological features, including pacemaker activity and calcium channel control, which play a vital role in the heart's response to various drugs. The autonomic nervous system, comprising the sympathetic and parasympathetic branches, regulates heart rate. Sympathetic activation increases heart rate, while parasympathetic activation...
645


