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Healthy Heart Assistant, a WhatsApp-Based Generative Pretrained Transformer Technology, for Self-Care in Hypertensive
Samuel E Antia1, Collins N Ugwu1, Vishal Ghodka2
1Department of Internal Medicine, Alex Ekwueme Federal University Teaching Hospital, Abakaliki, Ebonyi, Nigeria.
Mayo Clinic Proceedings. Digital Health
|July 21, 2025
Summary
Generative AI chatbots show promise for improving hypertension self-care in low-resource settings. This study found the Healthy Heart Assistant chatbot to be feasible and satisfactory for patients managing hypertension.
Area of Science:
- Digital Health
- Artificial Intelligence in Healthcare
- Cardiology
Background:
- Hypertension self-care is crucial, especially in resource-limited settings.
- Innovative digital tools are needed to support chronic disease management.
- Generative pretrained transformer chatbots offer a novel approach to patient engagement.
Purpose of the Study:
- To assess the feasibility, usability, and efficacy of a generative AI chatbot for hypertension self-care.
- To evaluate patient acceptance and satisfaction with the chatbot in a low-resource environment.
Main Methods:
- A single-arm clinical trial involving 50 hypertensive patients in a low-resource cardiology clinic.
- Utilized a generative AI chatbot (Healthy Heart Assistant) on smartphones for self-care support, including reminders.
- Assessed usability and satisfaction using validated questionnaires over a 30-day period.
Main Results:
- Recruited 50 participants from 70 eligible patients with compatible phones.
- High patient satisfaction (90%) and reasonable usability (69.5% score) were observed.
- Participants engaged with the chatbot, averaging 1.5 chats/day, with quick training completion.
Conclusions:
- Generative AI chatbots are a feasible and potentially effective tool for enhancing hypertension self-care in underserved populations.
- The Healthy Heart Assistant demonstrates potential for successful application in resource-limited settings.
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