Related Experiment Videos

Baseline demographics of the Valsartan Heart Failure Trial. Val-HeFT Investigators

J N Cohn1, G Tognoni, R Glazer

  • 1University of Minnesota Medical School, Box 508, 420 Delaware Street S.E., Minneapolis, MN 55455, USA. cohnx001@tc.umn.edu

Insights

The Valsartan Heart Failure Trial (Val-HeFT) evaluated valsartan in heart failure patients. Results showed the study population is representative of mild to moderate heart failure patients in industrialized nations.

Area of Science:

  • Cardiology
  • Pharmacology
  • Clinical Trials

Background:

  • The Valsartan Heart Failure Trial (Val-HeFT) is a landmark multinational study.
  • It investigates valsartan, an angiotensin II receptor blocker, as an add-on therapy for heart failure.
  • The study includes patients with ejection fraction <40% receiving conventional treatment.

Purpose of the Study:

  • To present and compare baseline characteristics of Val-HeFT participants.
  • To establish the representativeness of the Val-HeFT cohort.

Main Methods:

  • Randomized, multinational clinical study design.
  • Data collection and calculation of summary statistics for baseline characteristics.
  • Comparison of baseline data with other major heart failure trials.

Main Results:

  • The study population (n=5010) has a mean age of 62.7 years, 80% male, and 90.3% white.
  • Common comorbidities include coronary heart disease (57.2%).
  • High rates of conventional therapy use: ACE inhibitors (92.7%), diuretics (85.8%), digoxin (67.3%), and beta-blockers (35.6%).

Conclusions:

  • The Val-HeFT population is broadly representative of patients with mild to moderate heart failure in industrialized countries.
  • Baseline characteristics showed minimal variation across subgroups (age, sex, race, ejection fraction).
Abstract

Related Concept Videos

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 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 III: Clinical Manifestations01:26

Heart Failure III: Clinical Manifestations

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...
Clinical Trials: Overview01:11

Clinical Trials: Overview

Clinical development focuses on how the drug will interact with the human body and encompasses four key phases of clinical trials, each serving a specific purpose in assessing the safety and effectiveness of new drugs. These phases overlap and build upon one another. Phase I involves a small group of healthy volunteers (typically 20-80 individuals) or, in cases where significant toxicity is expected, patients with the targeted disease, such as cancer or AIDS. The volunteers are tested for...
Heart Failure Drugs: &#946;-Blockers01:22

Heart Failure Drugs: β-Blockers

β-adrenergic antagonists, commonly known as β-blockers, block the effects of sympathetic neurotransmitters such as noradrenaline (NA) and adrenaline (ADR). They have several beneficial effects in heart failure treatment. They reduce heart rate, the force of contraction, and cardiac muscle relaxation. They also slow the atrial-ventricular conduction rate and raise the threshold for arrhythmias. The concentration of β-blockers determines their effects on bronchodilation, vasodilation, and...
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...