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Related Concept Videos

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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Cardiomyopathy II: Dilated Cardiomyopathy01:30

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Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
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Imbalances in Cardiac Output01:26

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The heart's primary function is to pump blood throughout the body, maintaining a balance between blood sent out (cardiac output) and blood returning (venous return). If this balance is disrupted, it can result in congestive heart failure (CHF), a severe condition where the heart becomes an inefficient pump, leading to inadequate blood circulation.
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Pathophysiology of Heart Failure01:17

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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...
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Heart Failure II: Pathophysiology01:29

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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...
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Heart Failure V: Medical Management01:30

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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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Related Experiment Video

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Evaluation of Fluid Overload by Bioelectrical Impedance Vectorial Analysis
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Measuring Impedance in Congestive Heart Failure.

Ricardo Silva1, Jaime Cardoso1, Filipe Sousa2

  • 1Faculdade de Engenharia, Universidade do Porto, Porto, Portugal.

Studies in Health Technology and Informatics
|May 9, 2017
PubMed
Summary

A new portable device measures thoracic impedance to detect lung fluid retention in heart failure patients. This enables remote monitoring, reducing hospitalizations and improving patient quality of life.

Keywords:
Bioelectrical ImpedanceCongestive Heart FailureGain Phase Detector

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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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Author Spotlight: Unveiling Prognostic Indicators in Heart Failure - The Role of Phase Angle and Bioelectrical Impedance Analysis
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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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Area of Science:

  • Biomedical Engineering
  • Medical Monitoring
  • Cardiology

Background:

  • Heart failure affects over 23 million people globally, causing significant healthcare burdens.
  • Hospitalizations for heart failure management are increasing.
  • Early detection of fluid retention is crucial for preventing acute heart failure episodes.

Purpose of the Study:

  • To explore methods for detecting lung fluid retention using thoracic impedance measurements.
  • To develop a portable, low-cost device for monitoring heart failure patients.
  • To enable remote patient monitoring and early detection of acute episodes.

Main Methods:

  • Development of a small, portable device for measuring thoracic impedance.
  • Utilizing thoracic impedance to estimate fluid accumulation in the lungs.
  • Designing the device for low power consumption and rechargeable battery operation.

Main Results:

  • The developed device can estimate lung fluid accumulation from thoracic impedance.
  • The device is low-cost, user-friendly, and suitable for home use.
  • The device supports remote monitoring by physicians.

Conclusions:

  • The portable thoracic impedance device facilitates home monitoring for heart failure patients.
  • Remote monitoring can lead to early detection of acute episodes, reducing hospitalizations.
  • This technology has the potential to significantly improve the quality of life for heart failure patients.