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Related Concept Videos

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...
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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 I: Introduction01:27

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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 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 Drugs: Diuretics01:22

Heart Failure Drugs: Diuretics

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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...
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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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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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Adverse Outcomes Associated With Potentially Inappropriate Antibiotic Use in Heart Failure Admissions.

Jason Frisbee1, R Eric Heidel2, Mark S Rasnake1

  • 1Department of Medicine, Graduate School of Medicine, University of Tennessee, Knoxville, Tennessee.

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Intravenous antibiotics (IVAB) for acute decompensated heart failure (ADHF) patients without infection increase length of stay, diuretic needs, and readmissions. Antibiotic stewardship is crucial for ADHF care.

Keywords:
antibiotic stewardshipheart failurepneumoniaprocalcitoninsodium

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Area of Science:

  • Cardiology
  • Infectious Diseases
  • Pharmacology

Background:

  • Acute decompensated heart failure (ADHF) symptoms like dyspnea can be misdiagnosed as community-acquired pneumonia (CAP).
  • ADHF patients often receive intravenous antibiotics (IVAB) for suspected CAP, even without clear infection evidence.
  • Unnecessary IVAB may contribute excess fluid and sodium, potentially worsening ADHF outcomes.

Purpose of the Study:

  • To investigate the impact of IVAB therapy on ADHF patient outcomes.
  • To determine if unnecessary IVAB contributes to longer hospital stays, increased diuretic use, and higher readmission rates.

Main Methods:

  • Retrospective review of 144 ADHF patients with low pneumonia risk.
  • Comparison of outcomes between patients who received IVAB and those who did not.
  • Analysis of length of stay, mortality, readmission rates, diuretic use, and fluid/sodium administration from IVAB.

Main Results:

  • Patients receiving IVAB experienced a significantly longer length of stay (6.6 vs. 3.0 days).
  • IVAB-treated patients received substantial additional fluid (1.7 L) and sodium (9311 mg).
  • Higher furosemide requirements (930 vs. 320 mg) and a 2.51-fold increased likelihood of readmission were observed in the IVAB group.

Conclusions:

  • IVAB administration in ADHF patients without infection is associated with adverse outcomes, including prolonged hospitalization and increased readmissions.
  • These findings highlight the importance of judicious antibiotic use and suggest ADHF patients are a key target for antibiotic stewardship programs.