Effect of Gum Chewing on Bowel Cleansing Before Colonoscopy

Effect of Gum Chewing on Bowel Cleansing Before Colonoscopy: A Prospective Randomized Study

In this randomized controlled study, consecutive outpatients scheduled for elective colonoscopy were randomized into two groups. Group A patients (n = 150) used 2 L PEG before colonoscopy. Patients in group B (n = 150) were additionally advised to chew sugarless gum plus 2 L PEG, The overall quality of colonoscopy cleaning was evaluated using the Boston Bowel Preparation Scale by endoscopists who was blinded to the intervention. Difficulty of procedure, patients' tolerance, and adverse events were also evaluated.

Inclusion Criteria:

• All adults (18-65) who were referred for outpatient colonoscopy.

Exclusion Criteria:

• under 18 years or More than 65 years
• previous abdominal surgery
• major psychiatric disorders
• pregnancy
• presence of any contraindications for colonoscopy(eg, severe heart failure)
• recent inadequate colonoscopy history