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Related Concept Videos

Sleep Apnea01:21

Sleep Apnea

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Sleep apnea is a condition where breathing stops intermittently during sleep, often leading to significant health issues. Each episode can last from 10 to 20 seconds or more and is frequently accompanied by a brief arousal from sleep. This disturbance, largely unnoticed by the individual, can lead to severe daytime fatigue. Commonly, individuals seek help after being informed by their partners about loud snoring and noticeable breathing pauses during sleep.
The condition is more prevalent among...
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Heart Failure I: Introduction01:27

Heart Failure I: Introduction

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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...
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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 VI: Adjunct Therapies01:22

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Additional therapies for treating patients with heart failure (HF) may include procedural interventions, supplemental oxygen, the management of sleep disorders, and nutritional therapy.Procedural InterventionsImplantable Cardioverter-Defibrillator: For patients at risk of life-threatening arrhythmias due to severe left ventricular dysfunction, an Implantable Cardioverter-Defibrillator (ICD) can detect and terminate these arrhythmias, preventing sudden cardiac death and improving survival rates.
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Heart Failure III: Clinical Manifestations01:26

Heart Failure III: Clinical Manifestations

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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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Heart Failure IV: Classification and Diagnostic Evaluation01:30

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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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Sleep apnoea and heart failure.

Patrick Lévy1,2,3, Matthew T Naughton4,3, Renaud Tamisier5,2,3

  • 1Université Grenoble Alpes, Inserm, HP2 Laboratory, Grenoble, France patrick.levy@univ-grenoble-alpes.fr.

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Heart failure patients often have sleep disordered breathing (SDB), including obstructive sleep apnoea (OSA) and central sleep apnoea (CSA-CSR). While SDB worsens heart failure prognosis, treating it hasn't yet improved patient survival.

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Area of Science:

  • Cardiology
  • Pulmonology
  • Sleep Medicine

Background:

  • Heart failure (HF) and sleep disordered breathing (SDB) frequently coexist.
  • Obstructive sleep apnoea (OSA) can cause myocardial damage via hypoxia and inflammation.
  • Central sleep apnoea and Cheyne-Stokes respiration (CSA-CSR) occurs in HF, regardless of ejection fraction.

Purpose of the Study:

  • To review the relationship between heart failure and SDB.
  • To discuss the pathophysiology of OSA and CSA-CSR in HF.
  • To highlight diagnostic and prognostic implications of SDB in HF.

Main Methods:

  • Literature review of studies on HF and SDB over the past three decades.
  • Analysis of the pathophysiology of OSA and CSA-CSR in the context of heart failure.
  • Evaluation of diagnostic criteria and prognostic significance of SDB in HF patients.

Main Results:

  • SDB, encompassing OSA and CSA-CSR, is common in heart failure patients.
  • SDB is linked to poorer outcomes and increased mortality in heart failure.
  • Current evidence does not support SDB treatment improving cardiovascular outcomes in HF.

Conclusions:

  • Accurate diagnosis of SDB type (OSA vs. CSA-CSR) is crucial for HF management.
  • SDB significantly impacts heart failure prognosis, necessitating further research.
  • Despite the association, the clinical benefit of treating SDB in HF remains unproven.