Systematic Review on Blockchain-Based Dynamic and Revocable Consent for Secondary Health Data Use
基于区块链的动态可撤销健康数据二次使用知情同意：系统综述- 生物通
Summary
This article summarizes a systematic review published in JMIR Medical Informatics, detailing the concept of 'Dynamic and Revocable Consent' using blockchain technology. This system aims to enhance patient control over their health data by allowing them to manage consent for secondary data use, balancing privacy protection with research utility.
Details
The reviewed paper proposes an innovative approach to consent management for secondary healthcare data utilization using blockchain technology. Unlike traditional static consent models, this system allows patients to dynamically grant or revoke consent in real-time for specific uses or time periods. This significantly strengthens compliance with privacy regulations like GDPR (General Data Protection Regulation). Technically, the review focuses on a model that integrates Web3 elements such as Decentralized Identifiers (DIDs), Verifiable Credentials (VCs), and smart contracts to manage consent. It also suggests utilizing FHIR's AuditEvent resource to enhance data usage traceability. Furthermore, the article discusses how these technologies can address key challenges in health informatics, such as interoperability and privacy protection. The importance of individual consent management is highlighted, particularly within large-scale data sharing environments like the European Health Data Space (EHDS).
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