2 L versus 4 L of PEG3350 + electrolytes for outpatient colonic preparation: a randomized, controlled trial

A randomized controlled trial comparing a prepackaged low‐residue diet with a restricted diet for colonoscopy preparation: the impact on the results of colonoscopy in adenoma detection

“…In previous studies, a BBPS score of eight or higher was defined as excellent and scores of six or higher were generally considered to provide good visualization of the colon . In our study, the quality of bowel preparation was superior in the PLD group, but the difference was small.…”

Split-Dose Preparations Are Superior to Day-Before Bowel Cleansing Regimens: A Meta-analysis

“…Nine trials [21][22][23][24][25][26][27][28][29] were rejected from initial selection because 1 arm included both split and nonsplit dose regimens depending on the time of procedure, making preplanned data extraction impossible. Forty-seven trials (13,487 patients) were included: 38 in the split-dose vs day-before, and 12 for split-dose vs another split-dose comparisons 41,52,59,[67][68][69][70][71][72][73][74][75][76] (trials may appear in more than 1 comparison).…”

Impact of Bowel Preparation with Low-Volume (2-Liter) and Intermediate-Volume (3-Liter) Polyethylene Glycol on Colonoscopy Quality: A Prospective Observational Study

“…The standard high-volume (4-L) PEG regimen was more effective at bowel cleansing compared to the 2-L PEG regimens [15,16] . However, overall patient tolerability in the 4-L PEG preparation was significantly inferior to the 2-L PEG regimen because of the large volume [17][18][19] . Therefore, an intermediate-volume (3-L) PEG regimen should be studied to maintain PEG efficacy and improve patient compliance, which impact the quality of colonoscopy.…”