Related Experiment Video
Updated: Jul 7, 2026
09:40
Induction of Right Ventricular Failure by Pulmonary Artery Constriction and Evaluation of Right Ventricular Function in Mice
Published on: May 13, 2019
Endothelial dysfunction in patients with chronic heart failure is independently associated with increased incidence
D Fischer1, S Rossa, U Landmesser
1Abteilung Kardiologie und Angiologie, Medizinische Hochschule Hannover, Carl Neuberg Str. 1, 30625 Hannover, Germany.
European Heart Journal
|December 24, 2004
Summary
Flow-dependent vasodilation, a measure of endothelial function, independently predicts adverse outcomes in chronic heart failure (CHF) patients. Improved vasodilation is linked to better clinical outcomes, suggesting a protective role for nitric oxide.
Area of Science:
- Cardiology
- Vascular Biology
- Heart Failure Research
Background:
- Endothelial dysfunction is observed in chronic heart failure (CHF) patients.
- Its independent association with disease progression or patient outcomes remains unclear.
Purpose of the Study:
- To investigate if endothelial dysfunction, specifically flow-dependent vasodilation (FDD), independently predicts outcomes in CHF patients.
- To assess the relationship between FDD and cardiac death, heart failure hospitalizations, or heart transplantation.
Main Methods:
- Assessed FDD in the radial artery of 67 CHF patients (NYHA class II-III) using high-resolution ultrasound.
- Utilized Cox regression analysis to identify predictors of the primary endpoint.
- Analyzed cardiac death, heart failure hospitalization, or heart transplantation as primary endpoints over a median follow-up of 45.7 months.
Main Results:
- FDD, diabetes mellitus, and ejection fraction were independent predictors of adverse events.
- Patients with higher FDD (above median) showed significantly better clinical outcomes.
- 24 out of 67 patients experienced an event during follow-up.
Conclusions:
- Endothelium-mediated vasodilation is an independent predictor of cardiac death and hospitalization in CHF.
- These findings support the role of endothelium-derived nitric oxide in protecting against heart failure progression.
More Related Videos
Related Concept Videos
01:17Pathophysiology 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...
01:27Heart 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...
01:29Heart 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...
01:30Heart 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...
01:30Heart 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...
01:22Heart Failure VI: Adjunct Therapies
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.