Large Language Models in Medicine: Clinical Applications, Technical Challenges, and Ethical Considerations

Objectives This study presents a comprehensive review of the clinical applications, technical challenges, and ethical considerations associated with using large language models (LLMs) in medicine. Methods A literature survey of peer-reviewed articles, technical reports, and expert commentary from re...

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Main Author: Kyu-Hwan Jung
Format: Article
Language:English
Published: The Korean Society of Medical Informatics 2025-04-01
Series:Healthcare Informatics Research
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Online Access:http://e-hir.org/upload/pdf/hir-2025-31-2-114.pdf
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author Kyu-Hwan Jung
author_facet Kyu-Hwan Jung
author_sort Kyu-Hwan Jung
collection DOAJ
description Objectives This study presents a comprehensive review of the clinical applications, technical challenges, and ethical considerations associated with using large language models (LLMs) in medicine. Methods A literature survey of peer-reviewed articles, technical reports, and expert commentary from relevant medical and artificial intelligence journals was conducted. Key clinical application areas, technical limitations (e.g., accuracy, validation, transparency), and ethical issues (e.g., bias, safety, accountability, privacy) were identified and analyzed. Results LLMs have potential in clinical documentation assistance, decision support, patient communication, and workflow optimization. The level of supporting evidence varies; documentation support applications are relatively mature, whereas autonomous diagnostics continue to face notable limitations regarding accuracy and validation. Key technical challenges include model hallucination, lack of robust clinical validation, integration issues, and limited transparency. Ethical concerns involve algorithmic bias risking health inequities, threats to patient safety from inaccuracies, unclear accountability, data privacy, and impacts on clinician-patient interactions. Conclusions LLMs possess transformative potential for clinical medicine, particularly by augmenting clinician capabilities. However, substantial technical and ethical hurdles necessitate rigorous research, validation, clearly defined guidelines, and human oversight. Existing evidence supports an assistive rather than autonomous role, mandating careful, evidence-based integration that prioritizes patient safety and equity.
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spelling doaj-art-3a39a92bb2434315ba462cf26a148f492025-08-20T01:52:14ZengThe Korean Society of Medical InformaticsHealthcare Informatics Research2093-36812093-369X2025-04-0131211412410.4258/hir.2025.31.2.1141243Large Language Models in Medicine: Clinical Applications, Technical Challenges, and Ethical ConsiderationsKyu-Hwan Jung0 Department of Medical Device Management and Research, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, KoreaObjectives This study presents a comprehensive review of the clinical applications, technical challenges, and ethical considerations associated with using large language models (LLMs) in medicine. Methods A literature survey of peer-reviewed articles, technical reports, and expert commentary from relevant medical and artificial intelligence journals was conducted. Key clinical application areas, technical limitations (e.g., accuracy, validation, transparency), and ethical issues (e.g., bias, safety, accountability, privacy) were identified and analyzed. Results LLMs have potential in clinical documentation assistance, decision support, patient communication, and workflow optimization. The level of supporting evidence varies; documentation support applications are relatively mature, whereas autonomous diagnostics continue to face notable limitations regarding accuracy and validation. Key technical challenges include model hallucination, lack of robust clinical validation, integration issues, and limited transparency. Ethical concerns involve algorithmic bias risking health inequities, threats to patient safety from inaccuracies, unclear accountability, data privacy, and impacts on clinician-patient interactions. Conclusions LLMs possess transformative potential for clinical medicine, particularly by augmenting clinician capabilities. However, substantial technical and ethical hurdles necessitate rigorous research, validation, clearly defined guidelines, and human oversight. Existing evidence supports an assistive rather than autonomous role, mandating careful, evidence-based integration that prioritizes patient safety and equity.http://e-hir.org/upload/pdf/hir-2025-31-2-114.pdfnatural language processingartificial intelligenceclinical decision support systemsmedical informatics applicationsmedical ethics
spellingShingle Kyu-Hwan Jung
Large Language Models in Medicine: Clinical Applications, Technical Challenges, and Ethical Considerations
Healthcare Informatics Research
natural language processing
artificial intelligence
clinical decision support systems
medical informatics applications
medical ethics
title Large Language Models in Medicine: Clinical Applications, Technical Challenges, and Ethical Considerations
title_full Large Language Models in Medicine: Clinical Applications, Technical Challenges, and Ethical Considerations
title_fullStr Large Language Models in Medicine: Clinical Applications, Technical Challenges, and Ethical Considerations
title_full_unstemmed Large Language Models in Medicine: Clinical Applications, Technical Challenges, and Ethical Considerations
title_short Large Language Models in Medicine: Clinical Applications, Technical Challenges, and Ethical Considerations
title_sort large language models in medicine clinical applications technical challenges and ethical considerations
topic natural language processing
artificial intelligence
clinical decision support systems
medical informatics applications
medical ethics
url http://e-hir.org/upload/pdf/hir-2025-31-2-114.pdf
work_keys_str_mv AT kyuhwanjung largelanguagemodelsinmedicineclinicalapplicationstechnicalchallengesandethicalconsiderations