Predicting Stomach Retention Risk Before Sedated Gastroscopy
Studies a prediction model for food left in the stomach in adults having sedated gastroscopy.
Plain-language title generated from the registry record
Registry title: Development and Validation of a Risk Prediction Model for Gastric Retention in Patients Undergoing Sedated Gastroscopy
Key facts
- Where
- Hangzhou, Jiaxing, and Lishui, ChinaSee the 3 sites
AI summary: who the study is looking for
From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.
The trial is looking for adults who are scheduled for a planned gastroscopy under sedation. It studies how much food or fluid stays in the stomach.
- Age
- 18 years or older
- Sex
- All sexes can join
Main reasons for not taking part
- Sudden bleeding in the upper digestive tract (vomiting blood, black stools, or confirmed bleeding within 24 hours)
- Emergency endoscopy
- Known pregnancy or breastfeeding
- Judged by the investigators as unable to join
Read by machine on 12 November 2026.
Where in China
- The First Affiliated Hospital Zhejiang University School of MedicineHangzhou, ChinaContact: Diansan Su, DrTaking people
- The Second Affiliated Hospital of Jiaxing UniversityJiaxing, ChinaContact: Hongyuan SuiTaking people
- The Fifth Affiliated Hospital of Wenzhou Medical UniversityLishui, ChinaContact: Zhilan DouNot yet recruiting
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Contact the study team: see the registry record → Contacts and Locations
Print a page for my doctorTrial details
- Who runs it
- Zhejiang University
- Trial code
- NCT07104214
- Record updated
- 11 March 2026
- Original description
Gastric retention not only compromises the quality of endoscopic examination but also significantly increases the risk of reflux and aspiration in sedated patients. Aspiration of gastric contents represents a critical anesthesia-related complication during the perioperative period, carrying substantial implications for anesthetic management. With the growing volume of sedated gastroscopy procedures, predicting gastric retention has become an urgent clinical priority. This prospective study aims to establish a standardized gastric residual volume (GRV) grading system to evaluate both the volume of retained gastric contents and its contributing factors in patients undergoing upper gastrointestinal endoscopy. We will systematically assess the impact of demographic characteristics, comorbidities, and medication history on gastric emptying function. This study will facilitate establishment of an endoscopy-based simplified assessment system for gastric retention.Read full original descriptionShow less
Development and Validation of a Risk Prediction Model for Gastric Retention in Patients Undergoing Sedated Gastroscopy: a Multicentre Prospective Cohort Study
Gastric retention not only compromises the quality of endoscopic examination but also significantly increases the risk of reflux and aspiration in sedated patients. Aspiration of gastric contents represents a critical anesthesia-related complication during the perioperative period, carrying substantial implications for anesthetic management. With the growing volume of sedated gastroscopy procedures, predicting gastric retention has become an urgent clinical priority. This prospective study aims to establish a standardized gastric residual volume (GRV) grading system to evaluate both the volume of retained gastric contents and its contributing factors in patients undergoing upper gastrointestinal endoscopy. We will systematically assess the impact of demographic characteristics, comorbidities, and medication history on gastric emptying function. This study will facilitate establishment of an endoscopy-based simplified assessment system for gastric retention.
Inclusion: Age ≥18 years; Patients scheduled for elective sedated gastroscopy or sedated gastro-colonoscopy; Participant provides informed consent.
Exclusion: Acute upper gastrointestinal bleeding (active hematemesis, melena, or confirmed UGIB within 24h); Emergency endoscopic procedures; Known pregnancy or lactation; Subjects deemed ineligible by investigators.