Related Experiment Video

Updated: May 18, 2026

Cutoff Value of Phase Angle by Bioelectrical Impedance Analysis at Admission as a Prognostic Factor in Patients with Acute Heart Failure
05:16

Cutoff Value of Phase Angle by Bioelectrical Impedance Analysis at Admission as a Prognostic Factor in Patients with Acute Heart Failure

Published on: June 10, 2025

Risk score model for predicting mortality in advanced heart failure patients followed in a heart failure clinic

Barak Zafrir1, Yaron Goren, Hagar Paz

  • 1Department of Cardiovascular Medicine, Lady Davis Carmel Medical Center and the Ruth and Bruce Rappaport School of Medicine, Technion-Israel Institute of Technology, Haifa, Israel. barakz@bezeqint.net

Congestive Heart Failure (Greenwich, Conn.)
|September 22, 2012
PubMed

Insights

A new risk score model accurately predicts mortality in chronic heart failure (HF) patients using simple, noninvasive factors. This tool aids therapeutic decisions for better HF management and improved patient outcomes.

Area of Science:

  • Cardiology
  • Clinical Medicine
  • Health Services Research

Background:

  • Increasing prevalence of heart failure (HF) contributes to high rehospitalization and mortality rates.
  • Effective prognostic tools are crucial for managing chronic HF and guiding treatment decisions.

Purpose of the Study:

  • To develop and validate a prognostic risk score model for patients with chronic heart failure (HF).
  • To identify key clinical, functional, laboratory, and therapeutic variables associated with mortality in HF patients.

Main Methods:

  • A cohort of 500 chronic HF patients was followed for 25 months.
  • Multivariate analysis was used to develop a risk score model based on predictors of mortality.
  • The model's predictive performance was compared to the Seattle Heart Failure Model.

Main Results:

  • Key predictors of mortality included low systolic blood pressure, male sex, advanced age, reduced 6-minute walk distance, lack of beta-blocker therapy, hyperuricemia, hyponatremia, and prolonged QTc interval.
  • The developed risk score (0-55) stratified patients into low, moderate, high, and very high-risk groups with distinct 2-year mortality rates (9% to 62%).
  • The new model demonstrated superior discrimination (concordance index 0.75) compared to the Seattle Heart Failure Model (0.69).

Conclusions:

  • Simple, noninvasive factors assessed at initial HF clinic admission can serve as effective prognostic markers.
  • This risk score model can aid in therapeutic decision-making for patients with chronic heart failure.
  • The model offers a valuable tool for risk stratification and personalized management of HF.

Related Concept Videos

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 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 VII: Nursing Interventions01:30

Heart Failure VII: Nursing Interventions

The first step in nursing management of a patient with heart failure involves thoroughly assessing the patient's medical history.Subjective Data: Obtain the patient's medical history of coronary artery disease, hypertension, myocardial infarction, and symptoms like dyspnea, orthopnea, and paroxysmal nocturnal dyspnea.Objective Data: Conduct a physical examination to identify findings such as jugular vein distention, pulmonary crackles, tachycardia, murmurs, peripheral edema, and vital signs,...
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...
Pathophysiology of Heart Failure01:17

Pathophysiology 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...
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...