Water Infusion for Cecal Intubation Increases Patient Tolerance, but Does Not Improve Intubation of Unsedated Colonoscopies

In patients willing to undergo unsedated colonoscopy, water infusion improves patient tolerance for cecal intubation, compared with air insufflation. However, it does not increase the overall percentage of successful cecal intubations because suboptimal bowel preparation interferes with visibility.