Trial reportBMC gastroenterology2015
Difficult colonoscopy score identifies the difficult patients undergoing unsedated colonoscopy.
Trial report in BMC gastroenterology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 4 registered trials, which are not on this map. Cited by 20 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
A Novel Clinically Usable Point Score To Prejudge The Complexity Of Colonoscopy
Comparisons of Sigmoid-colon Water Immersion, the Whole Colon Water Immersion and Carbon Dioxide (CO2) Insufflation on Cecal Intubation Time in Potentially Difficult Colonoscopy by Difficult Colonoscopy Score(DCS) >1.
The Argentina Brief Colonoscopy Difficulty Score (ABCD): A Novel Tool to Estimate the Technical Difficulty of Colonoscopy With Caecal Intubation
The Correlation Between the Difficulty of Colonoscopy and the Patient's Personality
Who cites it
20 citing papers in PubMed, 27 citations in OpenAlex.
- Comment on "Impact of opioid addition on procedural conditions during colonoscopy: a randomized trial comparing propofol-based sedation protocols".Clinical endoscopy · 2026Article
- Early budget impact analysis of magnetic balloon technology for facilitating the completion of difficult colonoscopies.Cost effectiveness and resource allocation : C/E · 2025Article
- Impact of opioid addition on procedural conditions during colonoscopy: a randomized trial comparing propofol-based sedation protocols.Clinical endoscopy · 2025Article
- Construction and validation of a machine learning algorithm-based predictive model for difficult colonoscopy insertion.World journal of gastrointestinal endoscopy · 2025Article
- Correlation between colonoscopy difficulty and personality traits: study protocol for a prospective, observational, multicentre study.BMJ open · 2024Article
- Unsedated or On-Demand Minimally Sedated Water-Aided Outpatient Colonoscopy in Colorectal Cancer Screening and Surveillance: A Step Forward or Backward? Experience from Daily Practice in a Regional (Nonacademic) Hospital.Diagnostics (Basel, Switzerland) · 2024Article
- Effect of Body Mass Index on Cecal Intubation Time During Unsedated Colonoscopy: Variation Across the Learning Stages of an Endoscopist.Medical science monitor : international medical journal of experimental and clinical research · 2024Article
- Development and validation of a simulation-based assessment tool in colonoscopy.Advances in simulation (London, England) · 2023Article
- Efficacy and tolerability of colonoscopies in overweight and obese patients: Results from a national database on gastrointestinal endoscopic outcomes.Endoscopy international open · 2022Article
- Cecal intubation time in screening colonoscopy.Medicine · 2021Observational
- The impact of sedation on quality metrics of colonoscopy: a single-center experience of 48,838 procedures.International journal of colorectal disease · 2020Article
- Multicentre randomised controlled trial comparing standard and high resolution optical technologies in colorectal cancer screening.Frontline gastroenterology · 2019Article
- A pilot study of a novel variable-stiffness stylet for efficient colonoscope insertion withJournal of the anus, rectum and colon · 2019Article
- High Efficacy of Repeating Colonoscopy by an Advanced Endoscopist after an Incomplete Colonoscopy.GE Portuguese journal of gastroenterology · 2018Article
- Painless Colonoscopy: A Pilot Study of a 5.9-mm Endoscope for Routine Colonoscopy.Chinese medical journal · 2018Article
- Effects of body mass index on cecal intubation time in women.Turkish journal of surgery · 2018Article
- Predictors for difficult cecal insertion in colonoscopy: The impact of obesity indices.World journal of gastroenterology · 2017Article
- Correlation between obesity and metabolic syndrome-related factors and cecal intubation time during colonoscopy.Clinical and experimental gastroenterology · 2017Article
- Article
- Factors for cecal intubation time during colonoscopy in women: Impact of surgical history.Saudi journal of gastroenterology : official journal of the Saudi Gastroenterology AssociationArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundMany factors have been found to affect the difficulty of colonoscope insertion, such as age, gender, body mass index (BMI), history of abdominal surgery and operator etc. However, a scoring system may be more useful to predict the difficulty during colonoscopy.
methodsThe individual and procedure-related data of 616 patients undergoing colonoscopy were prospectively collected from December 2013 through February 2014 in Xijing Hospital of Digestive Diseases. Cox regression analysis was used to identify high-risk factors associated with difficulty of colonoscopy. A predicting model with the difficult colonoscopy score (DCS) was developed.
resultsTotal cecum intubation rate was 98.9% (609/616). Advanced age, lower BMI, inexperienced operator and fair or poor sleep quality were identified as independent factors of prolonged insertion time (all p < 0.05), which were used to develop the DCS. Based on the score, patients could be divided into high-risk and low-risk groups with distinct incomplete rates within 10 min (42.0% vs. 16.5%, p < 0.001). Compared with those with DCS ≤ 1, patients with DCS > 1 had increased insertion time (10.6 ± 0.7 min vs. 6.9 ± 0.2 min, p < 0.001) and pain score (1.9 ± 1.5 vs. 1.4 ± 1.4, p = 0.002). More abdominal compression (36.9% vs. 16.8%, p < 0.001) and position change (51.4% vs. 22.6%, p < 0.001) were needed in this group of patients.
conclusionPatients with DCS > 1 had longer insertion time, higher pain score and needed more abdominal compression and position changes. DCS was useful for predicting the difficulty of colonoscope intubation. (ClinicalTrials.gov NCT02105025 05/05/2014).
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.