Effectiveness of Large Language Model for Anaesthesia and Procedural Consent
Evaluating the Effectiveness of Large Language Models in Anaesthesia and Procedural Consent: A Comparative Analysis With Traditional Patient Consent Methods
Singapore General Hospital
120 participants
Jan 7, 2026
INTERVENTIONAL
Conditions
Summary
Patient understanding of anaesthesia risks remains inconsistent due to time constraints, language barriers, and variable clinician communication styles. Traditional verbal consent may not consistently ensure comprehension or reduce preoperative anxiety. PEAR (Patient Education of Anesthesia Risks) is a multilingual, AI-driven chatbot developed to enhance patient education and improve the quality of anaesthesia risk counselling. Study Objective: To compare PEAR's performance in delivering anaesthesia risk consent against the standard face-to-face verbal method.
Eligibility
Inclusion Criteria5
- \- Adults (≥21 years old) undergoing elective surgery requiring anaesthesia
- Classified as ASA Physical Status I to III
- Able to provide informed consent
- Able to communicate effectively in English, Chinese (Mandarin), Malay, or Tamil
- Willing and able to complete questionnaires and interact with the PEAR chatbot (intervention arm)
Exclusion Criteria5
- ASA Physical Status IV or above
- Cognitive impairment or psychiatric conditions that may limit comprehension or communication
- Non-literate patients or those unable to understand English, Chinese, Malay, or Tamil
- Emergency surgery cases
- Prior participation in the study (to prevent bias)
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Interventions
Participants in the intervention arm will receive anaesthesia risk counselling through the PEAR (Patient Education of Anaesthesia Risks) chatbot prior to their face-to-face consultation with an anaesthetist. PEAR is a multilingual, AI-powered conversational tool designed to provide personalized, interactive education on anaesthesia-related procedures, risks, and safety information. The chatbot delivers content aligned with institutional guidelines and allows patients to explore topics at their own pace, ask questions in natural language, and revisit information as needed. After completing the chatbot interaction, patients proceed with their standard preoperative consultation, where any further questions are addressed by the anaesthetist. This approach is designed to enhance patient understanding, reduce anxiety, and optimize the in-person consultation by preparing patients in advance.
Locations(2)
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NCT06949462