[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"aspiration-risk\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:aspiration-risk":27},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,1,0,[8],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":14,"acronym":15,"eligibilityCriteria":16,"healthyVolunteers":11,"sex":17,"minAge":18,"maxAge":4,"enrollmentInfo":19,"targetDuration":4,"studyType":22,"phases":23,"briefSummary":25,"conditions":26,"keywords":30,"overallStatus":35,"whyStopped":4,"lastUpdateSubmitDate":36,"lastUpdatePostDateStruct":37,"startDateStruct":40,"completionDateStruct":42,"leadSponsor":44,"locationsCount":5},"100615463","gastric-ultrasound-versus-gastroscopic-aspiration-100615463",false,"NCT07292935","Gastric Ultrasound Versus Gastroscopic Aspiration","Diagnostic Performance of Preoperative Gastric Ultrasound Compared to Gastroscopic Aspiration: A Prospective Clinical Study","GUSGA","Inclusion Criteria:\n\n* Adults aged ≥ 18 years\n* Indication for gastroscopy (scheduled or urgent), allowing complete aspiration of gastric contents\n* Feasibility of performing gastric ultrasound within one hour prior to the endoscopic procedure\n* Provision of written informed consent\n\nExclusion Criteria:\n\n* Pregnancy\n* History of major gastric or esophageal surgery\n* Known disorders of gastric emptying (e.g., gastroparesis, gastric outlet obstruction)\n* Cognitive impairment or language barriers preventing understanding of the study protocol\n* Active vomiting or technical impossibility to aspirate gastric contents","ALL","18 Years",{"count":20,"type":21},1390,"ESTIMATED","INTERVENTIONAL",[24],"NA","This is a prospective, single-center observational study conducted at the Fribourg Cantonal Hospital to evaluate the diagnostic performance of preoperative gastric ultrasound in determining gastric content and volume. Upper gastrointestinal endoscopy with complete suction of gastric contents serves as the reference standard.\n\nAdult patients (≥ 18 years) scheduled for elective or urgent gastroscopy are consecutively recruited. A gastric ultrasound is performed within one hour before the endoscopic procedure. The antral cross-sectional area is measured in standardized positions (supine and right lateral decubitus), and gastric volume is estimated using validated formulas. Gastric content is categorized into three grades (empty, low-risk liquid content, or high-risk\u002Fsolid content).\n\nDuring gastroscopy, complete aspiration of gastric contents is performed at the start of the procedure. The aspirated volume and qualitative characteristics (liquid vs. solid) are recorded, and the stomach is classified as empty, partially full, or full by the endoscopist.\n\nThe primary objective is to determine the accuracy of gastric ultrasound in identifying a full stomach. Secondary objectives include evaluating the qualitative agreement between ultrasound and gastroscopy, correlating estimated gastric volume with aspirated volume, and identifying an optimal ultrasound-based volume threshold predictive of a full stomach.\n\nApproximately 1,390 patients will be enrolled over one year to obtain at least 139 \"full stomach\" cases, based on prevalence estimates and sample size calculations. Statistical analyses will include diagnostic performance metrics, Cohen's kappa, correlation tests, Bland-Altman plots, and ROC curve analysis.",[27,28,29],"Aspiration Risk","Full Stomach Status","Gastric Content",[31,32,33,34],"Gastric Ultrasound","Gastroscopy","Estimated Gastric Volume","Preoperative Evaluation","NOT_YET_RECRUITING","2025-12-18",{"date":38,"type":39},"2025-12-24","ACTUAL",{"date":41,"type":21},"2026-02",{"date":43,"type":21},"2027-01-31",{"name":45,"class":46},"Hôpital Fribourgeois","OTHER"]