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Pathophysiology of Heart Failure01:17

Pathophysiology of Heart Failure

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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

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

Heart Failure IV: Classification and Diagnostic Evaluation

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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...
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Heart Failure V: Medical Management01:30

Heart Failure V: Medical Management

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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...
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Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

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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...
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Video Experimental Relacionado

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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Estado de salud informado por el paciente en pacientes con insuficiencia cardíaca con fracción de eyección mejorada

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
Resumen
Este resumen es generado por máquina.

Los pacientes con insuficiencia cardíaca con fracción de eyección mejorada (ICFEmi) experimentan un estado de salud similar al de aquellos con ICFEp, a pesar de la recuperación de la FE. Se necesita más investigación para mejorar los resultados de los pacientes con ICFEmi.

Palabras clave:
servicios de saludinsuficiencia cardíacainvestigación de resultados

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A Surgical Model of Heart Failure with Preserved Ejection Fraction in Tibetan Minipigs
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Área de la Ciencia:

  • Cardiología
  • Medicina Clínica
  • Investigación de Resultados de Salud

Sus antecedentes:

  • Creciente prevalencia de la insuficiencia cardíaca con fracción de eyección mejorada (ICFEmi).
  • Investigación previa limitada sobre la asociación entre la recuperación de la fracción de eyección (FE) y los cambios en el estado de salud.
  • Necesidad de caracterizar el estado de salud informado por el paciente en diferentes clasificaciones de insuficiencia cardíaca.

Objetivo del estudio:

  • Caracterizar el estado de salud informado por el paciente en la ICFEmi.
  • Comparar el estado de salud entre ICFEmi, insuficiencia cardíaca con fracción de eyección reducida (ICFEr) y insuficiencia cardíaca con fracción de eyección media/preservada (ICEMi/ICFEp).

Principales métodos:

  • Análisis de datos del Cuestionario de Miocardiopatía de Kansas City-12 (KCCQ-12) de 2519 pacientes con al menos dos visitas clínicas.
  • ICFEmi definida como FE >40% después de una FE previa ≤40%.
  • Se utilizó la regresión lineal multivariable para analizar la puntuación general resumida del KCCQ-12 en los grupos de FE, ajustando las características clínicas.

Principales resultados:

  • La ICFEmi constituyó el 18,7% de la cohorte del estudio.
  • Los pacientes con ICFEmi informaron un estado de salud similar al de los pacientes con ICEMi/ICFEp (diferencia de -1,1 puntos).
  • Los pacientes con ICFEmi tuvieron puntuaciones significativamente mejores que los pacientes con ICFEr (diferencia de 5,2 puntos).

Conclusiones:

  • A pesar de la mejora de la FE, los pacientes con ICFEmi presentan un estado de salud deteriorado comparable al de la ICFEp.
  • Las características clínicas explicaron solo el 16% de la variación en el estado de salud entre los pacientes con ICFEmi.
  • Es crucial una mayor investigación para comprender y mejorar el estado de salud de las personas con ICFEmi.