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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 II: Pathophysiology01:29

Heart Failure II: Pathophysiology

38
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...
38
Heart Failure VII: Nursing Interventions01:30

Heart Failure VII: Nursing Interventions

139
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,...
139
Heart Failure V: Medical Management01:30

Heart Failure V: Medical Management

23
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...
23
Heart Failure Drugs: Diuretics01:22

Heart Failure Drugs: Diuretics

483
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...
483
Heart Failure III: Clinical Manifestations01:26

Heart Failure III: Clinical Manifestations

43
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...
43

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関連する実験動画

Updated: Sep 10, 2025

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

Published on: February 13, 2021

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心不全の女性における血管機能 放出分子が保存された場合: 透析を超えた不一致

Nicholas A Carlini1,2, D Walter Wray1,2,3, Kerrie L Moreau4,5

  • 1Department of Internal Medicine, Division of Geriatrics, University of Utah, Salt Lake City, Utah.

Journal of applied physiology (Bethesda, Md. : 1985)
|August 21, 2025
PubMed
まとめ

HFpEFは,男性と女性に異なる影響を及ぼし,特に血管の健康に影響します. 女性におけるエストロゲンの減少は,HFpEFのアウトカムを悪化させ,性別特有の健康上の影響を強調する.

キーワード:
HFpEF について動脈の硬化生物学的な性別エンドセリウムエストロゲン

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A Surgical Model of Heart Failure with Preserved Ejection Fraction in Tibetan Minipigs
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関連する実験動画

Last Updated: Sep 10, 2025

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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Noninvasive Determination of Vortex Formation Time Using Transesophageal Echocardiography During Cardiac Surgery
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A Surgical Model of Heart Failure with Preserved Ejection Fraction in Tibetan Minipigs
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科学分野:

  • 心血管医学
  • 内分泌学
  • 女性 の 健康

背景:

  • 心不全の約50%は,心不全と保存されたエジェクション分数 (HFpEF) に起因する.
  • HFpEFは女性においてより一般的であり,男性と比較して異なる臨床表現と予後がある.
  • HFpEFの性別差は,エストロゲンの役割を含む解剖学的,生理学的,ホルモン学的変化から生じる可能性があります.

研究 の 目的:

  • HFpEF内の血管機能の性差に関する現在の証拠をレビューする.
  • 女性HFpEFの生理学へのエストロゲンの損失の影響を調査する.
  • HFpEFにおける女性の健康に関する将来の研究方向性を特定する.

主な方法:

  • 最近の科学文献のミニレビュー
  • 冠動脈の微小血管機能,外周血管機能,中央動脈の硬化に重点を置きます.
  • ホルモンメカニズム,特にエストロゲンの役割の調査.

主要な成果:

  • HFpEF患者における血管の健康には, 性別による大きな差異がある.
  • 女性におけるエストロゲン欠乏は,血管のパラメータに悪影響を及ぼす可能性があります.
  • 年齢に関連するホルモン変化は,女性におけるHFpEFの特徴に寄与する.

結論:

  • 性別の違い,特にホルモンの違いは,HFpEFを理解する上で非常に重要です.
  • エストロゲンの役割は,女性の健康への介入を対象にさらなる調査を正当化しています.
  • 性別特有のメカニズムの対処は,HFpEF管理を改善するために不可欠です.