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NCT07517848Completed

Comparison of the Left-Lateral Horizontal and Supine Positions for Colonoscopy Intervention: A Randomized Controlled Study

Source: ClinicalTrials.gov · Last updated 8 Apr 2026

Brief summary (registry, in English)

Objective: One of the most common technical difficulties during colonoscopy is passing through the fold of the sigmoid colon. Colonoscopy is commonly performed by endoscopists with the patient in the left lateral position. When the procedure is initiated in the left lateral position, insufflation of the bowel may result in a sharper angulation of the sigmoid colon, making advancement of the colonoscope more difficult. This study aimed to compare colonoscopic procedures initiated in the left lateral position and the supine position. Materials and Methods: Colonoscopy was performed on 198 participants who had an indication for colonoscopy at the General Surgery clinic and met the study inclusion criteria. All procedures were conducted by the same endoscopist (Dr. Semra Tutcu Şahin) in the Endoscopy Unit during working hours. Participants were randomly assigned to two groups: Group 1: Participants whose starting position for colonoscopy was supine (n=97) Group 2: Participants whose starting position for colonoscopy was left lateral (n=101) During colonoscopy, participants' demographic data, vital signs, and the time required for the endoscopist to reach the cecum were recorded. At the end of the procedure, participants completed a pain scale, and the endoscopist completed an observation scale. The data were entered into the SPSS program and analyzed.

Status (registry)
Completed
Study type
Interventional
Enrollment
198 (actual)
First submitted
6 Dec 2025
Start date
1 Feb 2021
Primary completion date
1 Oct 2023
Lead sponsor
Manisa Celal Bayar University
NCT number
NCT07517848

What you commit to

  • Study type: Interventional
  • Participants enrolled: 198
  • From 1 Feb 2021 to the primary completion date, 1 Oct 2023
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Other illness

  • Patients with a history of colon resection
  • Major psychiatric disorders

Age

  • Patients under 18 years of age

Other

  • Patients who do not give informed consent
  • Pregnant women
  • Patients requesting sedation
  • Patients with an indication for emergency colonoscopy

Who the study is looking for

  • Female and male patients over 18 years of age who have been medically indicated for colonoscopy and have signed the voluntary consent form.

Age in the registry: 18 years to - · Sex: All · Accepts healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Manisa Celal Bayar University
Coordinator of this site? Confirm its status
ManisaTurkey (Türkiye)Unknown status

This page is information, not medical advice. Discuss any trial with your doctor.