An Improved Big Data-Based Electronic Health Record (EHR)

Authors- Nwozor, Blessing. U, Asheshemi Nelson Oghenekevwe

Abstract-The application of electronic health record management (EHR) system proved to be a viable replacement for the manual system for handling medical records. However, there has been concerns over data confidentiality and security in the healthcare sector, given the need for immediate review of the traditional centralized database systems that has so failed to meet this expectation. This project therefore proposed the development an improved blockchain based electronic health record (EHR) management system using a patient-centered approach, blockchain- based system that efficiently manages and safeguards health-related data of an individual. The proposed system was implemented using the object-oriented analysis and design methodology (OOADM) which applies object orientation for the analysis and design of a software project development. The system was developed visual studio code (VS Code) hypertext preprocessor (PHP), making use of the Ethereum network and tools like web3.js and Ganache, adopting an approach that overcomes the constraints of the existing systems. A key component of blockchain technology, smart contracts provide the foundation for decentralized patient data processing and storing. These smart contracts ensure patient privacy and data security by conducting transactions in a safe manner. Especially, any changes made to a transaction can be validated and spread throughout the whole distributed network, improving data integrity. To enhance this system, a cryptocurrency wallet such as MetaMask can be used, which offers a centrally managed repository where medical records are securely accessible to authorized users, such as patients and doctors, at any time. With a robust framework for securely storing data with customized access permissions and facilitating the safe transfer of patient medical records, the new system outperforms the old one in terms of efficiency, credibility, and accessibility within the healthcare domain.

DOI: /10.61463/ijset.vol.12.issue5.256