Clinical trial · Interventional
Comparison of the Left-Lateral Horizontal and Supine Positions for Colonoscopy Intervention: A Randomized Controlled Study
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
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.
Conditions
Conditions (4)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Colo-rectal Cancer | — | UNRESOLVED | — |
| Colorectal Disorders | — | UNRESOLVED | — |
| Colorectal Neoplasms | Colorectal Neoplasm | ONTOLOGY_EXACT | 0.98 |
| Colorectal Polyp | — | UNRESOLVED | — |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Colonoscopy after bowel cleansing | Procedure | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- type
- OTHER
- label
- Supine position (SP)
- description
- The first group consisted of patients assigned to the supine position (SP) as the initial position for colonoscopy
- interventionNames
- Procedure: Colonoscopy after bowel cleansing
- Device: Colonoscopy after bowel cleansing
- type
- OTHER
- label
- Lateral Left Horizontal Position (LLP)
- description
- The second group consisted of patients assigned to the left lateral horizontal position (LLP) as the initial position for colonoscopy
- interventionNames
- Procedure: Colonoscopy after bowel cleansing
- Device: Colonoscopy after bowel cleansing
Primary outcomes (1)
- measure
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Female and male patients over 18 years of age who have been medically indicated for colonoscopy and have signed the voluntary consent form. Exclusion Criteria: * Patients under 18 years of age * Patients who do not give informed consent * Pregnant women * Patients requesting sedation * Patients with an indication for emergency colonoscopy * Patients with a history of colon resection * Major psychiatric disorders
References
Publications (4)
- BACKGROUNDMcKechnie T, Heimann L, Kazi T, Jessani G, Lee Y, Sne N, Hong D, Eskicioglu C. Starting position during colonoscopy: a systematic review and meta-analysis of randomized controlled trials. Tech Coloproctol. 2024 Mar 20;28(1):39. doi: 10.1007/s10151-024-02912-8. PMID 38507105
- BACKGROUNDRamai D, Singh J, Brooks OW, Barakat M, Mohan BP, Chandan S, Khan SR, Dhindsa B, Dhaliwal A, Ofosu A, Adler DG. Comparison of left versus right lateral starting position on colonoscopy: a systematic review and meta-analysis of randomized controlled trials. Ann Gastroenterol. 2021 Sep-Oct;34(5):699-704. doi: 10.20524/aog.2021.0639. Epub 2021 Jun 3. PMID 34475741
- BACKGROUNDWatanabe J, Park D, Kakehi E, Inoue K, Ishikawa S, Kataoka Y. Efficacy and safety of the starting position during colonoscopy: a systematic review and meta-analysis. Endosc Int Open. 2020 Jul;8(7):E848-E860. doi: 10.1055/a-1149-1541. Epub 2020 Jun 16. PMID 32617389
- BACKGROUNDLi N, Lu B, Luo C, Cai J, Lu M, Zhang Y, Chen H, Dai M. Incidence, mortality, survival, risk factor and screening of colorectal cancer: A comparison among China, Europe, and northern America. Cancer Lett. 2021 Dec 1;522:255-268. doi: 10.1016/j.canlet.2021.09.034. Epub 2021 Sep 24. PMID 34563640