• S.Sudeshna
• Ch. Sandhya Rani

Abstract— This survey explores the complex field of health record management systems, with a particular emphasis on the common concerns of data security and patient privacy in centralized infrastructures. These systems frequently include flaws that expose patient data to different cyberthreats and undermine the legitimacy of healthcare organizations. Decentralized ledger technology appearsto be a viable answer to these problems. Using the Ethereum blockchain platform MediBlock as a case study, this survey examines the benefits of decentralized systems. Patients' privacy and data integrity are guaranteed by MediBlock's decentralized design, which grants patients total control of their health data. This survey highlights the many benefits of decentralized systemsthrough a thorough examination, such as improved patient outcomes, simpler data management procedures, and the promotion of transparency, trust, and interoperability throughout the healthcare system.

Keywords—Blockchain, Ethereum, medical records, smart contracts, decentralized technology

"Transforming Healthcare: Harnessing Decentralized Ledger Technology to Secure Patient Information", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 5, page no.b695-b699, May-2024, Available :http://www.jetir.org/papers/JETIR2405182.pdf

"Transforming Healthcare: Harnessing Decentralized Ledger Technology to Secure Patient Information", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 5, page no. ppb695-b699, May-2024, Available at : http://www.jetir.org/papers/JETIR2405182.pdf