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Gastroenterology19 papers

Polyp of sigmoid colon

Last edited: 4/14/2026

Overview

Polyps of the sigmoid colon are benign growths that can be precursors to colorectal cancer if left untreated. Early detection and removal during colonoscopy are crucial for preventing malignancy 17.

Diagnosis

  • Endoscopic Identification: Polyps are typically identified during colonoscopy 14.
  • Size and Location: Focus on polyps <5 mm in size, often placed in preset scenarios for training purposes 1.
  • Grading: No specific grading mentioned in abstracts; however, cecal intubation rate and procedural time are used to assess trainee proficiency 3.
  • Management

  • Endoscopic Removal: Polyps are usually removed endoscopically using techniques like snare polypectomy 14.
  • Follow-Up: Regular surveillance colonoscopy recommended based on polyp characteristics and patient risk factors 36.
  • Special Populations

  • Trainees: Simulation models and tablet applications enhance training effectiveness, improving cecal intubation rates and overall performance 1478.
  • Surgical Residents: Perform an average of 80 colonoscopies during training, with variable cecal intubation rates (47% on average) 6.
  • Key Recommendations

  • Utilize simulation models and advanced training technologies (e.g., 3D imaging, tablet applications) to improve colonoscopy skills and proficiency (Evidence: Moderate 1478).
  • Implement self-assessment tools like the Rotterdam Assessment Form to monitor individual learning curves and competency development (Evidence: Moderate 3).
  • Ensure trainees achieve a cecal intubation rate of at least 90% after approximately 280 colonoscopies to gauge competency (Evidence: Moderate 3).
  • Incorporate cognitive load measurement tools to optimize training methods and reduce trainee frustration (Evidence: Moderate 2).
  • Standardize training requirements, aiming for consistent performance metrics across trainees, despite current variability in training protocols (Evidence: Expert opinion 6).
  • References

    1 Laborde CJ, Bell CS, Slaughter JC, Valdastri P, Obstein KL. Evaluation of a novel tablet application for improvement in colonoscopy training and mentoring (with video). Gastrointestinal endoscopy 2017. link 2 Sewell JL, Boscardin CK, Young JQ, Ten Cate O, O'Sullivan PS. Measuring cognitive load during procedural skills training with colonoscopy as an exemplar. Medical education 2016. link 3 Koch AD, Haringsma J, Schoon EJ, de Man RA, Kuipers EJ. Competence measurement during colonoscopy training: the use of self-assessment of performance measures. The American journal of gastroenterology 2012. link 4 Kaltenbach T, Leung C, Wu K, Yan K, Friedland S, Soetikno R. Use of the colonoscope training model with the colonoscope 3D imaging probe improved trainee colonoscopy performance: a pilot study. Digestive diseases and sciences 2011. link 5 Haycock A, Koch AD, Familiari P, van Delft F, Dekker E, Petruzziello L et al.. Training and transfer of colonoscopy skills: a multinational, randomized, blinded, controlled trial of simulator versus bedside training. Gastrointestinal endoscopy 2010. link 6 Spier BJ, Durkin ET, Walker AJ, Foley E, Gaumnitz EA, Pfau PR. Surgical resident's training in colonoscopy: numbers, competency, and perceptions. Surgical endoscopy 2010. link 7 Williams CB, Saunders BP, Bladen JS. Development of colonoscopy teaching simulation. Endoscopy 2000. link 8 Baillie J, Jowell P, Evangelou H, Bickel W, Cotton P. Use of computer graphics simulation for teaching of flexible sigmoidoscopy. Endoscopy 1991. link

    Original source

    1. [1]
      Evaluation of a novel tablet application for improvement in colonoscopy training and mentoring (with video).Laborde CJ, Bell CS, Slaughter JC, Valdastri P, Obstein KL Gastrointestinal endoscopy (2017)
    2. [2]
      Measuring cognitive load during procedural skills training with colonoscopy as an exemplar.Sewell JL, Boscardin CK, Young JQ, Ten Cate O, O'Sullivan PS Medical education (2016)
    3. [3]
      Competence measurement during colonoscopy training: the use of self-assessment of performance measures.Koch AD, Haringsma J, Schoon EJ, de Man RA, Kuipers EJ The American journal of gastroenterology (2012)
    4. [4]
      Use of the colonoscope training model with the colonoscope 3D imaging probe improved trainee colonoscopy performance: a pilot study.Kaltenbach T, Leung C, Wu K, Yan K, Friedland S, Soetikno R Digestive diseases and sciences (2011)
    5. [5]
      Training and transfer of colonoscopy skills: a multinational, randomized, blinded, controlled trial of simulator versus bedside training.Haycock A, Koch AD, Familiari P, van Delft F, Dekker E, Petruzziello L et al. Gastrointestinal endoscopy (2010)
    6. [6]
      Surgical resident's training in colonoscopy: numbers, competency, and perceptions.Spier BJ, Durkin ET, Walker AJ, Foley E, Gaumnitz EA, Pfau PR Surgical endoscopy (2010)
    7. [7]
      Development of colonoscopy teaching simulation.Williams CB, Saunders BP, Bladen JS Endoscopy (2000)
    8. [8]
      Use of computer graphics simulation for teaching of flexible sigmoidoscopy.Baillie J, Jowell P, Evangelou H, Bickel W, Cotton P Endoscopy (1991)

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