None
Conditions
Interventions
Experimental Group:Blunt Snare Resection, BSR.Mucosal resection using a snare to expose the tumor, followed by blunt dissection with the snare tip, tumor enucleation and resection with snare ligation,
Control Group:Control Group: Endoscopic Submucosal Dissection (ESD)Standard ESD procedure: submucosal injection to lift the lesion, circumferential marking, mucosal incision, submucosal dissection, wo
Sponsors
The Second Affiliated Hospital of Shantou University Medical College
Eligibility
Sex/Gender
All
Age
18 Years to 75 Years
Inclusion criteria
Inclusion criteria: 1. Age 18-75 years; 2. Gastroscopy shows submucosal gastric lesions, and endoscopic ultrasound (EUS) confirms the lesions originate from the muscularis propria, with a maximum diameter <= 1.0 cm; 3. Preoperative imaging (EUS/CT) shows no clear signs of lymph node or distant metastasis; 4. American Society of Anesthesiologists (ASA) classification I-III, able to tolerate sedation or general anesthesia; 5. The patient understands and voluntarily signs a written informed consent.
Exclusion criteria
Exclusion criteria: 1. Significant coagulation dysfunction (INR > 1.5, or platelet count < 80×10^9/L); 2. High-risk features indicated by endoscopy of the lesion (such as surface ulceration, irregular margins); 3. Pregnant or breastfeeding women; 4. History of gastric surgery (which may affect the surgical area); 5. Concurrent severe systemic diseases with an expected survival of less than 1 year; 6. Inability to comply with study follow-up.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Operation time (minutes);Direct material cost (CNY);Adverse event rate (bleeding, perforation, infection);Local recurrence rate of tumors; | — |
Secondary
| Measure | Time frame |
|---|---|
| The rate of complete resection;R0 resection rate; | — |
Countries
China
Contacts
Public ContactXiaodong Chen
The Second Affiliated Hospital of Shantou University Medical College
Outcome results
None listed