ArticleCurrent medical science2026
Real-World Analysis of Organ Transplantation-Specific Agent Based on Large Language Model in Post-Transplant Self-Management During Off-Hours: A Mixed-Methods Study.
Article in Current medical science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveA significant gap exists in medical support for organ transplant patients during out-of-hours (OOH). General large language models (LLMs), affected by AI hallucinations, are unsuitable for complex post-transplant care. We built the first post-transplant AI agent based on LLMs to address these issues.
methodsWe constructed a specialized "post-transplant AI agent" (named Doctor Xiao Yi) and conducted a mixed-methods study comparing it to a hospital-wide general AI agent (named Nan Xiao Yi). Data included 20,176 real-world logs (June-December 2025) and a cross-sectional survey of 152 transplant patients. We examined patterns of use over time, the types of questions raised, and the factors influencing patient behavior.
resultsUnlike Nan Xiao Yi, Doctor Xiao Yi remained active during OOH, with a peak at 4:00 AM (P < 0.001). The general agent handled admin tasks like appointments, while the specialist agent provided clinical support such as diet, symptoms, and medication. Survey found 60.5% of OOH use by transplant patients due to reluctance to disturb human doctors. Furthermore, 63.8% of transplant patients were satisfied with the specialist agent's responses, and 48% reported they would decide on further hospital treatment based on AI suggestions.
conclusionsThe specialist AI agent effectively fills the gap in medical and psychological services during OOH for transplant recipients. Based on the "dual-source knowledge base + GraphRAG + multi-agent framework" architecture, our specialist AI agent offers safe, reliable post-transplant care.
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