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Related Concept Videos

Pathophysiology of Heart Failure01:17

Pathophysiology of Heart Failure

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...
Heart Failure I: Introduction01:27

Heart Failure I: Introduction

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...
Heart Failure VII: Nursing Interventions01:30

Heart Failure VII: Nursing Interventions

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,...
Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

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

Heart Failure IV: Classification and Diagnostic Evaluation

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...
Heart Failure V: Medical Management01:30

Heart Failure V: Medical Management

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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Related Experiment Video

Updated: May 25, 2026

Cutoff Value of Phase Angle by Bioelectrical Impedance Analysis at Admission as a Prognostic Factor in Patients with Acute Heart Failure
05:16

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

Published on: June 10, 2025

Predicting poor outcomes in heart failure.

David H Smith, Eric S Johnson, Micah L Thorp

    The Permanente Journal
    |February 10, 2012
    PubMed
    Summary
    This summary is machine-generated.

    A new risk model predicts heart failure hospitalization or death within five years. Simple models are as effective as complex ones, aiding disease management prioritization.

    Related Experiment Videos

    Last Updated: May 25, 2026

    Cutoff Value of Phase Angle by Bioelectrical Impedance Analysis at Admission as a Prognostic Factor in Patients with Acute Heart Failure
    05:16

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

    Published on: June 10, 2025

    Area of Science:

    • Cardiology
    • Health Services Research
    • Predictive Analytics

    Background:

    • Heart failure management is crucial for reducing hospitalizations and mortality.
    • Effective risk stratification is needed for targeted interventions.

    Purpose of the Study:

    • To develop and evaluate risk-prediction models for 5-year mortality or hospitalization in heart failure patients.
    • To assess the utility of echocardiogram data in risk prediction.

    Main Methods:

    • Developed risk models using electronic health record data from 4696 heart failure patients (1999-2004).
    • Included demographic, clinical, and echocardiogram data.
    • Compared simple and complex model performance.

    Main Results:

    • Observed a 56% five-year risk of heart failure hospitalization or death.
    • Echocardiogram data did not significantly improve prediction accuracy beyond clinical factors.
    • Models showed modest accuracy in predicting risk, with limited discrimination between highest and lowest risk groups.

    Conclusions:

    • Electronic health record data can generate risk-prediction models for heart failure outcomes.
    • Simple models are as effective as complex ones, offering modest predictive accuracy.
    • The developed model can help prioritize disease management efforts by stratifying patient risk.