The effectiveness of simethicone in improving visibility during colonoscopy when given with a sodium phosphate...

Area of Science:

• Gastroenterology
• Endoscopy

Background:

• Oral sodium phosphate solutions are preferred for colonoscopy preparation due to better patient tolerance compared to polyethylene glycol.
• However, bubble formation during colonoscopy preparation can significantly impair visualization of the colonic lumen.

Purpose of the Study:

• To evaluate the efficacy of simethicone in reducing intraluminal bubbles during colonoscopy.
• To determine if simethicone improves colonic visibility when used with oral sodium phosphate preparation.

Main Methods:

• A randomized, blinded study involving 86 patients undergoing colonoscopy.
• Patients received either oral sodium phosphate with simethicone (n=42) or placebo (n=44).
• Colonic lumen visibility was assessed by a blinded investigator, with bubble presence scored in five distinct colonic regions.

Main Results:

• A significant reduction in significant bubbles (score >= 1) was observed in the simethicone group (1 patient) compared to the placebo group (13 patients).
• Mean bubble scores were significantly lower in the simethicone group across multiple colonic regions, including the rectosigmoid and ascending colon (p <= 0.05).

Conclusions:

• Simethicone co-administration effectively diminishes bubble presence associated with oral sodium phosphate bowel preparation.
• Improved colonic visibility resulting from reduced bubbles may enhance the diagnostic yield of colonoscopy by facilitating the detection of mucosal abnormalities.