[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100606153":3},{"organization":4,"armGroups":7,"interventions":10,"overallOfficials":10,"centralContacts":15,"locations":21,"responsibleParty":34,"collaborators":10,"id":38,"slug":39,"hasResults":40,"nctId":41,"briefTitle":42,"officialTitle":43,"acronym":10,"eligibilityCriteria":44,"healthyVolunteers":40,"sex":45,"minAge":46,"maxAge":47,"enrollmentInfo":48,"targetDuration":10,"studyType":51,"phases":10,"briefSummary":52,"conditions":53,"keywords":55,"overallStatus":23,"whyStopped":10,"lastUpdateSubmitDate":58,"lastUpdatePostDateStruct":59,"startDateStruct":62,"completionDateStruct":64,"leadSponsor":66,"locationsCount":67},{"fullName":5,"class":6},"King Chulalongkorn Memorial Hospital","OTHER",[8,12],{"label":9,"type":10,"description":11,"interventionNames":10},"Diagnostic Colonoscopy",null,"Patient receiving diagnostic colonoscopy for colorectal cancer screening without therapeutic intervention",{"label":13,"type":10,"description":14,"interventionNames":10},"Colonoscopy with colonic polypectomy","Patient receiving colonoscopy with various techniques of colonic polypectomy",[16],{"name":17,"role":18,"phone":19,"phoneExt":10,"email":20},"Phubaet Washrawirul, Medical","CONTACT","660815852932","phubaet.was@chulahospital.org",[22],{"facility":5,"status":23,"city":24,"state":24,"zip":25,"country":26,"countryCode":27,"cosmosGeoPoint":28,"geoPoint":33,"contacts":10},"RECRUITING","Bangkok","10330","Thailand","TH",{"type":29,"coordinates":30},"Point",[31,32],100.50144,13.75398,{"lat":32,"lon":31},{"type":35,"investigatorFullName":36,"investigatorTitle":37,"investigatorAffiliation":5,"oldNameTitle":10,"oldOrganization":10},"PRINCIPAL_INVESTIGATOR","Rapat Pittayanon","Assoc. Prof. Dr.","100606153","the-carbon-footprint-study-of-colonoscopy-100606153",false,"NCT07171853","The Carbon Footprint Study of Colonoscopy","The Carbon Footprint Study of Colonoscopy for Colorectal Cancer Screening and Various Techniques of Colonic Polypectomy","Inclusion Criteria:\n\n* Patients aged 18-80 years\n\nExclusion Criteria:\n\n* Patient status grade III-V according to the American Society of Anesthesiologists (ASA)\n* Poor bowel preparation (grade \\\u003C6 in the Boston Bowel Preparation Scale \\[BBPS\\])\n* Endoscopic JNET type III or suspicion of malignancy\n* Hematologic or coagulation disorders, Plt\\\u003C140,000\u002FmcL, INR\\>1.5\n* anti-platelet\u002Fanticoagulant medication that could not be paused as recommended in the current guideline\n* Emergency colonoscopy, GI bleeding, unstable vital sign, critical ill patient\n* Inflammatory bowel disease\n* Pregnancy\n* Severe cardiopulmonary disease\n* Severe infection\n* Malignancy\n* History of allergy to IV sedative medication","ALL","18 Years","80 Years",{"count":49,"type":50},150,"ESTIMATED","OBSERVATIONAL","With global warming intensifying, GI endoscopy is among the top three greenhouse gas-emitting medical procedures. Colonoscopy, a cornerstone for colorectal cancer (CRC) screening, significantly contributes to the carbon footprint (CF). This study quantifies CO₂ emissions in different steps of colonoscopy and evaluates the environmental impact of common polypectomy techniques to establish baseline CF data and identify opportunities for mitigation. This study included patients undergoing colonoscopy for CRC screening. CO₂ emissions were comprehensively measured at each step of the procedure (pre-, during, and post-colonoscopy), including energy consumption, all equipment and medications, waste management, and endoscopy reprocessing. Emission data were also collected for common polypectomy techniques, including cold forceps biopsy (CFB), cold snare polypectomy (CSP), hot snare polypectomy (HSP), and hot snare endoscopic mucosal resection (EMR), all performed according to standard polypectomy protocols.",[54],"Colonoscopy",[56,54,57],"Carbon footprint","Colonic polypectomy","2025-09-13",{"date":60,"type":61},"2025-09-18","ACTUAL",{"date":63,"type":61},"2025-06-01",{"date":65,"type":50},"2025-10-31",{"name":5,"class":6},1]