"Air Assisted"Water Injection Colonoscopy in Experienced Endoscopists

Harbin Medical University

Status: Unknown

Conditions: Colon Disease;; Rectal Disease

Treatments: Other: Air insufflation; Other: Water injection; Other: " Air assisted" water injection.

Study type: Interventional

Funder types: Other

Identifiers

NCT01797393

WIC-001

Details and patient eligibility

About

Up to now, many studies has showed that compared with air insufflation colonoscopy, water-related colonoscopy could shorten the cecal intubation time and relieve the pain of the patients,especially for training the beginners,the investigators conduct this study to preform the "air assisted" water injection colonoscopy in experienced endoscopists.

Full description

In order to further develop water skills and apply the water assisted colonoscopy technique more flexibly, the investigators designed this study.

Enrollment: 600 estimated patients

Sex: All

Ages: 18 to 80 years old

Volunteers: No Healthy Volunteers

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

Trial design

Primary purpose: Diagnostic

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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600 participants in 3 patient groups

Air insufflation colonoscopy

Active Comparator group

Description:

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.

Treatment:

Other: Air insufflation

Water injection colonoscopy

Experimental group

Description:

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.

Treatment:

Other: Water injection

" Air assisted" water colonoscopy

Experimental group

Description:

" 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.

Treatment:

Other: " Air assisted" water injection.