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Related Concept Videos

Health Literacy01:21

Health Literacy

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Health literacy is an individual's or a community's capacity to comprehend, receive, read, and use relevant healthcare information and services. The World Health Organization (WHO, 2018) defines health literacy as the cognitive and social skills that determine the ability of individuals to gain access to, understand, and use information in ways that promote and maintain good health. As a result, the WHO helps individuals manage long-term health concerns, participate in preventative...
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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,...
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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 Drugs: Diuretics01:22

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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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Assessment of the Cardiovascular System I: Subjective Data01:23

Assessment of the Cardiovascular System I: Subjective Data

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A thorough health history and physical assessment are essential for identifying cardiovascular disease (CVD) symptoms and distinguishing them from other health issues.
Initial Enquiry
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Medical History
Investigate past illnesses affecting the cardiovascular system, such as angina, anemia, rheumatic fever, congenital heart disease, stroke, thrombophlebitis, dysrhythmias, varicosities
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Exercise Stress Test01:26

Exercise Stress Test

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Introduction
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
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Purposes
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A Novel Digital Platform for a Monitored Home-based Cardiac Rehabilitation Program
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Health Literacy-Based Heart Failure Self-care (H2Lit) Application: Development and Usability Testing.

Mia Cajita1, Ardith Z Doorenbos, Karen M Vuckovic

  • 1Author Affiliation: University of Illinois Chicago.

Computers, Informatics, Nursing : CIN
|February 13, 2025
PubMed
Summary
This summary is machine-generated.

A new web app, H2Lit, was developed to improve heart failure self-care for patients with low health literacy. Usability testing showed promising results, indicating the app

Keywords:
Health literacyHeart failureSelf-careUsabilityeHealthmHealth

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Area of Science:

  • Cardiology
  • Health Informatics
  • Patient Education

Background:

  • Heart failure self-care is crucial for patient outcomes.
  • Health literacy significantly impacts a patient's ability to manage chronic conditions.
  • Existing interventions may not adequately address the needs of patients with low health literacy.

Purpose of the Study:

  • To describe the development of the H2Lit (Health Literacy-focused Heart Failure) web-based app.
  • To assess the usability of the H2Lit app among diverse user groups.
  • To evaluate the app's potential for improving heart failure self-care.

Main Methods:

  • An iterative development approach was used for the H2Lit app over four testing rounds.
  • Participants included healthy individuals and patients with heart failure.
  • Usability was assessed using the System Usability Scale (SUS) via an online platform.

Main Results:

  • The H2Lit app demonstrated varying usability scores across testing rounds (Round 1: 74.1, Round 2: 54.3, Round 3: 85.3, Round 4: 82.5).
  • Final usability scores were comparable between participants with adequate and low health literacy.
  • The intervention was iteratively refined based on user feedback.

Conclusions:

  • The H2Lit web-based app shows potential as a usable tool for heart failure self-care.
  • Further research is required to establish the intervention's efficacy on patient outcomes.
  • Health literacy considerations are integral to developing effective digital health tools.