This project aims to collect the exhaled breath of patients with acute upper gastrointestinal bleeding clinically, divide them into large, small and no bleeding groups according to the results of gastroscopy, analyze the characteristics of volatile organic compound components in exhaled breath, construct a discriminant model, and then analyze the sensitivity and specificity, and the target sensitivity and specificity reach more than 0.7, and formulate diagnostic criteria.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
death in hospital
Timeframe: 6 weeks