"Air Assisted"Water Injection Colonoscopy in Experienced Endoscopists
Colon Disease;, Rectal Disease
About this trial
This is an interventional diagnostic trial for Colon Disease;
Eligibility Criteria
Inclusion Criteria:
- Patients diagnostic colonoscopy;
- Subjets able to provide informed consent
Exclusion Criteria:
- Prior partial or complete colectomy;
- Patients who decline to participate;
- Patients with poor bowel preparation;
- Contraindications of the colonoscopy
Sites / Locations
- The 1st Affiliated Hospital of Harbin Medical UniversityRecruiting
Arms of the Study
Arm 1
Arm 2
Arm 3
Active Comparator
Experimental
Experimental
Air insufflation colonoscopy
Water injection colonoscopy
" Air assisted" water colonoscopy
Air insufflation colonoscopy is the conventional colonoscopy,which is inflating air to help searching the bowel cavity while advancing the colonoscope until reaching the cecum.All the patients were examined without sedation during the whole procedure.
Water injection colonoscopy : Cut off air inflating before examination. Water was injected through the working channel to follow the intestinal cavity until reaching the caecum .The mucosa was observed by inflating the bowel with air while withdrawing the colonoscope.All the patients were examined without sedation during the whole procedure.
" Air assisted" water injection colonoscopy: Cut off air inflating before examination. Water was injected through the working channel to follow the intestinal cavity until reaching the splenic flexure, small amount of air inflating could be given to help searching the cavity until reaching the cecum.All the patients were examined without sedation during the whole procedure.