MCE Identifying Bleeding Lesions in Patients with Antiplatelet Drugs-Related Acute Non-Hematochezia Gastrointestinal Bleeding

The goal of this clinical trial is to explore the diagnostic efficacy of detachable string magnetically controlled capsule endoscopy (ds-MCE) for identification of bleeding lesions in patients with antiplatelet drugs-related acute non-hematochezia gastrointestinal bleeding. The main questions it aims to answer are: Compared to the conventional esophagogastroduodenoscopy, does ds-MCE accurately detect bleeding lesions in the upper gastrointestinal tract in patients with antiplatelet drugs-related acute non-hematochezia gastrointestinal bleeding? Recording bleeding lesions in the small bowel detected by ds-MCE in patients with antiplatelet drugs-related acute non-hematochezia gastrointestinal bleeding. Participants will: Undergo ds-MCE first and subsequently EGD within 24 hours. Receive follow-up in the following 30days.