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Related Concept Videos

Issues And Trends In Healthcare Delivery System01:29

Issues And Trends In Healthcare Delivery System

The issues and trends in healthcare delivery are constantly changing. The COVID-19 pandemic is one recent issue that wreaked havoc on healthcare systems, causing a shortage of healthcare workers, high demand for medicines and supplies, and increased medical expenditure due to a lack of insurance. Other issues include rising healthcare costs and care fragmentation.
Cost Containment
Payment for healthcare services has historically promoted adoption of costly and often unnecessary or inefficient...
Purpose of Health Records II01:19

Purpose of Health Records II

Health records serve various essential purposes in the healthcare system. Here are some key purposes:
Secondary Healthcare System01:11

Secondary Healthcare System

Secondary healthcare is offered by a specialist, generally in hospitals or clinics for patients referred by primary healthcare providers. It occurs when a person has an illness or injury that requires specific medical care. Secondary care is often referred to as acute care. Secondary care can range from uncomplicated care to repair a minor laceration or treat a strep throat infection to more complicated emergent care, such as treating a head injury sustained in an automobile accident. Whatever...
Purpose of Health Records I01:11

Purpose of Health Records I

The vital purpose of health records is to provide a complete and accurate account of a patient's medical history, including communication, diagnostic and therapeutic orders, care planning, research, and quality review.
Here's a breakdown of how health records serve these purposes:
Standards of Care II01:19

Standards of Care II

Nurses bear specific legal responsibilities under several federal statutes, including:
Ethical Standards I01:25

Ethical Standards I

The American Nurses Association (ANA) created and implemented the first nationally accepted Code of Ethics for Nurses with Interpretive Statements. The Code of Ethics is a living document regularly updated by the ANA and establishes an ethical standard that is non-negotiable for nurses in all roles and settings.
The Code of Ethics provisions outline the nurse's duty to the patient, the healthcare team, the profession, and society. The Code's fundamental principles include advocacy,...

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Blockchain-Based Dynamic and Revocable Consent for Secondary Health Data Use: Systematic Review.

Sudip Phuyal1, Manila Bhandari1, Rabindra Bista2

  • 1Information Sciences, Technology and Architecture Research Center (ISTAR), Iscte - Instituto Universitário de Lisboa, Lisbon, Portugal.

JMIR Medical Informatics
|June 23, 2026
PubMed
Summary
This summary is machine-generated.

Blockchain technology enhances health data consent management, offering dynamic, auditable, and patient-controlled processes. Challenges remain in usability, interoperability, and regulatory alignment for widespread adoption.

Keywords:
EHDSEuropean Health Data SpaceGDPRGeneral Data Protection Regulationauditabilityblockchaindata privacydynamic consenthealth care data sharingrevocable consent

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Area of Science:

  • Health Informatics
  • Biomedical Research
  • Data Governance

Background:

  • Secondary use of health data offers significant potential for research and AI development.
  • Current consent mechanisms are often static, lack transparency, and are difficult to revoke.
  • Ensuring patient autonomy and privacy in health data reuse is a critical challenge.

Purpose of the Study:

  • To systematically review blockchain-based frameworks for managing consent in secondary health data use.
  • To evaluate these frameworks based on consent life cycle management, auditability, usability, and legal alignment.

Main Methods:

  • Systematic literature search of PubMed, Scopus, and Web of Science (2020-2025).
  • Analysis of 55 peer-reviewed studies following PRISMA guidelines.
  • Data extraction focused on consent management, auditability, patient empowerment, and ethical/legal aspects.

Main Results:

  • Blockchain frameworks enable automated, immutable, and decentralized consent management for health data.
  • Smart contracts, decentralized identifiers, and verifiable credentials are key components.
  • Persistent challenges include usability, revocation complexities, system interoperability, and regulatory compliance (e.g., GDPR).

Conclusions:

  • Blockchain shows promise for trustworthy, transparent, and accountable health data consent.
  • Wider adoption needs human-centered design, improved interoperability (e.g., FHIR), and clear legal frameworks.
  • Future integration into digital health ecosystems (e.g., EHDS) is crucial for secure, patient-controlled data use.