Difficult colonoscopy score identifies the difficult patients undergoing unsedated colonoscopy

Area of Science:

• Gastroenterology
• Medical Devices
• Clinical Prediction Models

Background:

• Colonoscopy insertion difficulty is influenced by various patient and procedural factors.
• Predicting colonoscopy difficulty can optimize patient care and procedural efficiency.

Purpose of the Study:

• To develop and validate a predictive model for colonoscopy insertion difficulty.
• To identify key risk factors associated with prolonged colonoscopy insertion times.

Main Methods:

• Prospective data collection from 616 patients undergoing colonoscopy.
• Cox regression analysis to identify independent risk factors for insertion difficulty.
• Development of the Difficult Colonoscopy Score (DCS) based on identified factors.

Main Results:

• Advanced age, low BMI, inexperienced operators, and poor sleep quality were significant predictors of prolonged insertion time.
• The DCS effectively stratified patients into high-risk and low-risk groups for incomplete colonoscopies (42.0% vs. 16.5%).
• Patients with DCS > 1 experienced longer insertion times, higher pain scores, and required more interventions.

Conclusions:

• The Difficult Colonoscopy Score (DCS) is a valuable tool for predicting colonoscope intubation difficulty.
• A higher DCS is associated with increased insertion time, pain, and need for procedural assistance.
• The DCS can aid clinicians in anticipating and managing challenging colonoscopies.