Supine Position for Colonoscopy Insertion

Changhai Hospital347 enrolled

Overview

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.

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 Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Enrollment

347

Conditions

Colonoscopy Insertion Patient Position

Interventions

supine positionPROCEDURE

patients were positioned on their supine position to receive colonoscopy insertion

Eligibility

Sex: ALLMin age: 18 YearsMax age: 75 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: 1. aged between 18-75 years 2. underwent screening, surveillance, and diagnostic colonoscopy Exclusion Criteria: 1. \<18 or \>75 years old 2. major psychiatric disorders, colonic resection, pregnancy, presence of any contraindications for colonoscopy (eg, severe heart failure, renal insufficiency) 3. Patients with severe cardiopulmonary and renal disease 4. Patients who are unwilling or unable to consent

Locations (1)

Changhai Hospital, Second Military Medical University

Shanghai, China

Outcomes

Primary Outcomes

cecal intubation time

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.

Time frame: 2 hour

Secondary Outcomes

descending colon intubation time

Descending colon intubation time is the insertion time taken from first visualization of rectal mucosa to descending colon and descending colon was identified by the presence of straight colonic lumen and affirmed by an independent observer simultaneously.

Time frame: 1 hour

patients' pain score

patients' discomfort will be assessed by a 10-cm visual analog scale, in which a score of 0 denoted no pain and a score of 10 denoted unbearable pain

Time frame: 3 hour

patients' acceptance to unsedated or sedated colonoscopy in the future screening or examination

when colonoscopy insertion is completed, patients will be asked whether they would accept similar unsedated or sedated colonoscopy in the future screening or examination

Time frame: 3 hour

Data from ClinicalTrials.gov

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