Impact of Time Intervals of Preparation on Quality and Tolerance of the Bowel Preparation

Impact of Time Intervals on Quality and Tolerance of the Bowel Preparation

The purpose of this study is to determine optimal time intervals for preparation before colonoscopy using different formulas.

Different formulas are used for bowel preparation before colonoscopy. Present guidelines are based on conventional polyethylene glycol. Their validity for other preparations were not evaluated. Relationship between length of preparation, interval to colonoscopy and bowel preparation quality, tolerance are assessed.

Inclusion Criteria:

- subjects referred to diagnostic or therapeutic colonoscopy.

Exclusion Criteria:

• ileus
• known or suspected bowel obstruction
• active bowel inflammation
• pregnancy
• any presence of serious medical conditions ( esp. cardiac, renal, liver diseases)
• history of prior colonic or rectal surgery
• inability to obtain valid data from