Impact of Supine Position on Colonoscopy Insertion: a Randomized Controlled Trial
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Changhai Hospital
- Enrollment
- 347
- Locations
- 1
- Primary Endpoint
- cecal intubation time
Study Overview
Brief Summary
The purpose of this study is to determine whether the supine position is better than the left lateral horizontal body position to decrease cecal intubation time, patients' pain and the difficulty of colonoscopy insertion.
Detailed Description
Left lateral position is conventionally performed to initiate colonoscopy, yet no evidence has demonstrated its efficacy and advantages. Left lateral position for insertion, which results in air rising away from the left colon and producing acute bends in the sigmoid,might increase the risk of colonoscopy loop formation.When there is difficulty advancing the colonoscope, supine position can be employed to ensure cecal intubation. Therefore, we perform a randomized controlled trial to compares supine position with left lateral position for the safety and efficacy of colonoscopy insertion.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Treatment
- Masking
- None
Eligibility Criteria
- Ages
- 18 Years to 75 Years (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •aged between 18-75 years
- •underwent screening, surveillance, and diagnostic colonoscopy
Exclusion Criteria
- •<18 or >75 years old
- •major psychiatric disorders, colonic resection, pregnancy, presence of any contraindications for colonoscopy (eg, severe heart failure, renal insufficiency)
- •Patients with severe cardiopulmonary and renal disease
- •Patients who are unwilling or unable to consent
Arms & Interventions
supine position group
Intervention: supine position (Procedure)
left lateral position
Outcomes
Primary Outcomes
cecal intubation time
Time Frame: 2 hour
Cecal intubation time is the insertion time taken from first visualization of rectal mucosa to cecum and cecal intubation was confirmed by identifying the characteristic anatomical landmarks of the triradiate fold, appendiceal orifice, and ileocecal valve.
Secondary Outcomes
- patients' acceptance to unsedated or sedated colonoscopy in the future screening or examination(3 hour)
- patients' pain score(3 hour)
- descending colon intubation time(1 hour)
Investigators
Zhaoshen Li
Director, Head of Department of Gastroenterology, Principal Investigator, Clinical Professor
Changhai Hospital