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相关概念视频

Heart Failure I: Introduction01:27

Heart Failure I: Introduction

55
Heart failure refers to a clinical syndrome caused by structural or functional cardiac disorders that prevent the heart from pumping an adequate amount of blood to meet the body's metabolic needs. This condition often arises from myocardial infarction or ischemia, leading to decreased cardiac output, reduced tissue perfusion, impaired gas exchange, fluid volume imbalance, and decreased functional ability.Heart failure can result from disruptions in the mechanisms that regulate cardiac output...
55
Heart Failure VII: Nursing Interventions01:30

Heart Failure VII: Nursing Interventions

140
The first step in nursing management of a patient with heart failure involves thoroughly assessing the patient's medical history.Subjective Data: Obtain the patient's medical history of coronary artery disease, hypertension, myocardial infarction, and symptoms like dyspnea, orthopnea, and paroxysmal nocturnal dyspnea.Objective Data: Conduct a physical examination to identify findings such as jugular vein distention, pulmonary crackles, tachycardia, murmurs, peripheral edema, and vital signs,...
140
Pathophysiology of Heart Failure01:17

Pathophysiology of Heart Failure

1.8K
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...
1.8K
Heart Failure V: Medical Management01:30

Heart Failure V: Medical Management

25
Medical Management of Acute Decompensated Heart Failure (ADHF)The primary goals of therapy for patients hospitalized with acute decompensated heart failure (ADHF) include:Relieving symptomsOptimizing volume statusSupporting oxygenation and ventilationMaintaining cardiac output (CO) and end-organ perfusionIdentifying and addressing the cause of ADHFPreventing complicationsProviding patient education on factors precipitating HF exacerbationPlanning for dischargeOngoing monitoring and assessment...
25
Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

44
Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
44
Heart Failure III: Clinical Manifestations01:26

Heart Failure III: Clinical Manifestations

48
Heart failure (HF) manifests primarily as dyspnea, fatigue, and fluid retention, resulting in peripheral and pulmonary edema. Symptoms may vary depending on which ventricle is more affected, left or right.Left-Sided Heart FailureAlso known as left ventricular failure, this condition results from the left ventricle's inability to fill or eject sufficient blood into the systemic circulation. It leads to pulmonary congestion, which occurs when the left ventricle fails to eject blood effectively...
48

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相关实验视频

Updated: Sep 13, 2025

Postconditioning with Lactate-enriched Blood for Cardioprotection in ST-segment Elevation Myocardial Infarction
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Postconditioning with Lactate-enriched Blood for Cardioprotection in ST-segment Elevation Myocardial Infarction

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在心力衰竭中含有乳酸盐

Piotr Gajewski1, Michał Maksymilian Wilk2, Krzysztof Aleksandrowicz1,3

  • 1Institute of Heart Diseases, Wroclaw Medical University, 50-556 Wrocław, Poland.

International journal of molecular sciences
|July 29, 2025
PubMed
概括
此摘要是机器生成的。

乳酸是心力衰竭 (HF) 的关键指标,信号血流不良,并预测结果. 了解乳酸盐的理解

关键词:
急性心力衰竭是什么意思慢性心力衰竭是一种慢性心力衰竭.心脏衰竭是因为心脏衰竭.乳酸乳酸是一种乳酸.

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科学领域:

  • 心脏病学 心脏病学
  • 生物化学 生化学
  • 代谢研究研究 代谢研究

背景情况:

  • 乳酸盐传统上被视为无氧代谢的副产品.
  • 它在心力衰竭 (HF) 病理生理学中的作用是复杂的,并未完全理解.
  • 乳酸盐可以作为标记物和活性代谢基质.

研究的目的:

  • 审查乳酸在急性和慢性心力衰竭中的诊断和预后意义.
  • 探索乳酸作为低 perfusion 标志物和活性代谢基质的双重作用.
  • 讨论乳酸在风险分层和HF患者指导治疗中的潜力.

主要方法:

  • 现有文献的叙述性审查.
  • 分析乳酸在急性不补偿性心力衰竭中的作用.
  • 在慢性心力衰竭中运动期间检查乳酸动态,包括HFpEF.

主要成果:

  • 在急性HF中乳酸水平升高表明血液循环不充分,并预测不良事件.
  • 慢性HF运动期间的乳酸动态反映了代谢效率低下和功能能力.
  • 乳酸的作用在不同的HF表型和临床环境之间有所不同.

结论:

  • 乳酸在心力衰竭中具有多方面的作用,不仅仅是简单的代谢副产品.
  • 它的测量为诊断严重程度,预测预后和指导高频率治疗策略提供了宝贵的见解.
  • 对乳酸的代谢功能的进一步研究可以提高风险分层和心力衰竭管理的治疗方法.