Dr Lawrence Hookey and colleagues from Canada compared the efficacy and patient tolerance of two dietary regimens used as an adjunct to standard bowel cleansing in preparation for elective colonoscopy.
The team performed a prospective, randomized, single-blind, controlled, noninferiority trial comparing 2 dietary regimens administered the day before colonoscopy.
Subjects received low-volume bowel preparation.
|Overall satisfaction was higher with the low-residue diet |
|American Journal of Gastroenterology|
The team's primary outcome was efficacy of colon cleansing, rated by the Ottawa bowel preparation scale (OBPS).
Patient acceptance of the assigned dietary regimen was assessed as a secondary outcome.
The research team found that mean OBPS score for the standard clear-fluid diet group was 4.5, compared with 4.6 for the low-residue breakfast group, meeting criteria for noninferiority.
The groups reported similar mean intensity of hunger on a visual analog hunger scale.
However, the team observed that overall satisfaction was higher with the low-residue diet than with the clear-fluid diet.
Dr Hookey's team commented, "A low-residue breakfast on the day before elective colonoscopy does not compromise the overall quality of bowel preparation as compared with a standard clear-fluid diet and is likely to be preferred by patients."