Blockchain-Based Data Storage for Secure Electronic Health Records: A Comprehensive Review

Abstract

The integration of blockchain technology into Electronic Health Records (EHRs) represents a transformative advancement in the healthcare industry, offering solutions to longstanding issues of data security, privacy, and interoperability. Traditional EHR systems are plagued by vulnerabilities, including data breaches, unauthorized access, and inefficient data sharing. Blockchain, with its decentralized, immutable, and transparent architecture, provides a robust framework for secure health data management. This review paper explores the potential of blockchain technology in enhancing the security and efficiency of EHR systems. It discusses various blockchain-based frameworks and their applications in healthcare, highlighting how blockchain can ensure data integrity, patient control, and interoperability. The paper also examines the role of smart contracts in automating access control and data validation, thereby enhancing the privacy and security of patient information. Through a comprehensive analysis of recent literature, this review identifies the benefits and challenges of implementing blockchain in EHR systems and outlines future research directions to address emerging issues and improve system efficiency