Blockchain-Driven Electronic Health Record (EHR) Interoperability: A Secure Framework for Cross-Institutional Data Exchange

Abstract

The increasing complexity and fragmentation of healthcare data systems necessitate secure, interoperable frameworks for Electronic Health Record (EHR) management. Blockchain technology, with its inherent immutability, decentralization, and traceability, offers a viable solution for enabling secure cross-institutional data exchange. This paper presents a comprehensive overview of blockchain-based approaches for EHR interoperability, highlights the current challenges in healthcare data exchange, and proposes a security-enhanced model integrating smart contracts and HL7-FHIR protocols. The potential for AI-enhanced blockchains and their application in real-world healthcare scenarios is also explored.