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相关概念视频

Pathophysiology of Heart Failure01:17

Pathophysiology of Heart Failure

2.6K
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...
2.6K
Heart Failure VII: Nursing Interventions01:30

Heart Failure VII: Nursing Interventions

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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,...
389
Heart Failure IV: Classification and Diagnostic Evaluation01:30

Heart Failure IV: Classification and Diagnostic Evaluation

281
Heart failure can be classified in various ways, with the most common classifications based on physical activity limitations, disease progression, severity, and treatment strategies.The Functional Classification of Heart Failure divides patients into four categories based on physical activity limitation due to symptom burden.Class I: Patients in this class have cardiac disease but no physical activity limitations. Ordinary activities like walking, climbing stairs, or routine tasks do not cause...
281
Heart Failure V: Medical Management01:30

Heart Failure V: Medical Management

195
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...
195
Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

658
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...
658
Heart Failure III: Clinical Manifestations01:26

Heart Failure III: Clinical Manifestations

430
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...
430

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相关实验视频

Updated: Jan 7, 2026

Lumped-Parameter and Finite Element Modeling of Heart Failure with Preserved Ejection Fraction
09:20

Lumped-Parameter and Finite Element Modeling of Heart Failure with Preserved Ejection Fraction

Published on: February 13, 2021

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在心力衰竭患者中,患者报告的健康状况与改善的喷射分数.

Elena Vasti1,2, Jimmy Zheng2, Neil M Kalwani1,3

  • 1Division of Cardiovascular Medicine Stanford Health Care Stanford CA USA.

Journal of the American Heart Association
|December 30, 2025
PubMed
概括
此摘要是机器生成的。

患有心力衰竭和改善喷射分数 (HFimpEF) 的患者经历的健康状况与HFpEF患者相似,尽管EF恢复. 需要进一步的研究来改善HFimpEF患者的治疗结果.

关键词:
医疗保健服务 医疗保健服务心脏衰竭是因为心脏衰竭.研究结果研究成果.

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Cutoff Value of Phase Angle by Bioelectrical Impedance Analysis at Admission as a Prognostic Factor in Patients with Acute Heart Failure
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A Surgical Model of Heart Failure with Preserved Ejection Fraction in Tibetan Minipigs
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相关实验视频

Last Updated: Jan 7, 2026

Lumped-Parameter and Finite Element Modeling of Heart Failure with Preserved Ejection Fraction
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Lumped-Parameter and Finite Element Modeling of Heart Failure with Preserved Ejection Fraction

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Cutoff Value of Phase Angle by Bioelectrical Impedance Analysis at Admission as a Prognostic Factor in Patients with Acute Heart Failure
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科学领域:

  • 心脏病学 心脏病学
  • 临床医学 临床医学
  • 健康 结果 研究 研究 结果

背景情况:

  • 心力衰竭与改善的射出分数 (HFimpEF) 的患病率越来越高.
  • 关于喷射分数 (EF) 恢复和健康状况变化之间的关联的先前研究有限.
  • 需要在不同心力衰竭分类中描述患者报告的健康状况.

研究的目的:

  • 在HFimpEF中描述患者报告的健康状况.
  • 在HFimpEF,心力衰竭与减少喷射率 (HFrEF) 和心力衰竭与中等/保存喷射率 (HFmrEF/HFpEF) 之间比较健康状况.

主要方法:

  • 分析堪萨斯城心肌病问卷-12 (KCCQ-12) 数据来自2519名至少两次诊所访问的患者.
  • 在HFimpEF定义为EF>40%,之前EF≤40%.
  • 多变量线性回归用于分析KCCQ-12 EF组的总体总结得分,并根据临床特征进行调整.

主要成果:

  • 在研究队列中,HFimpEF占18.7%.
  • 患有HFimpEF的患者报告的健康状况得分与HFmrEF/HFpEF患者相似 (差异为-1.1分).
  • HFimpEF患者的得分明显优于HFrEF患者 (差异5.2分).

结论:

  • 尽管EF有所改善,但HFimpEF患者的健康状况有所恶化,与HFpEF相比.
  • 临床特征仅解释了HFimpEF患者健康状况变化的16%.
  • 进一步的研究对于了解和改善HFimpEF患者的健康状况至关重要.