Technological advancements have paved the way for revolutionary
transformations in the health care sector. A significant shift in patient care has been
brought about by the development of technologies such as wearables, the Internet of
Things, artificial intelligence, and the metaverse, which have made possible features
like telemedicine and remote health monitoring. Incorporation of these technologies
has resulted in more efficient and effective diagnosis, treatment, and nursing care. The
digitization of health care data has paved the way for the easy handling and sharing of
medical records. Meanwhile, there are various challenges specific to sensitive patient
data involving security, privacy, and interoperability. Blockchain technology, with its
unique attributes like immutability, decentralization, and security, became a key
priority in developing applications in different sectors, ranging from financial to
education. Blockchain's privacy feature has recently prompted its integration with
numerous healthcare applications, reflecting the critical necessity to protect patients’
private information. The cryptographic concepts in blockchain allow the encryption of
medical data, prevent unauthorized access, and enable tamper-proof storage. This work
focuses on the application of blockchain in various sectors of healthcare and examines
how the integration of this technology has benefited those applications.
Keywords: Artificial intelligence, Blockchain, Big data, Confidentiality, Cryptography, Decentralization, Digitization, Data security, IoT, Interoperability, Metaverse, Privacy, Smart contracts, Transparency, Wearable devices.
