Optimal Bowel Preparation for Video Capsule Endoscopy

Table 2

Studies comparing SBVQ, DY, and CR between PEG solution versus clear liquid or fasting of small bowel VCE.

Author; (year, area)	Design	Number	PEG versus clear liquid diet or fasting
			SBVQ	DY	CR
Viazis et al. [6]; (2004, Greece)	Prospective RCT	80	90% versus 60%	65% versus 30%	80% versus 65%
van Tuyl et al. [7]; (2007, Netherlands)	Prospective RCT	60	72% versus 25%	30% versus 27%	N/A
Endo et al. [8]; (2008, Japan)	Prospective RCT	59	N/A	78.6% versus 71.6%	88.9% versus 65.6%
Wi et al. [9]; (2009, Korea)	Prospective RCT	99	56% versus 43%	50% versus 39%	71% versus 75%
Rey et al. [10]; (2009, France)	Prospective RCT	116	83.1% versus 38.6%	N/A	N/A
Park et al. [11]; (2011, Korea)	Prospective RCT	43	2.43 versus 2.26	65% versus 56.6%	75% versus 73%
Ito et al. [12]; (2012, Japan)	Prospective RCT	42	4.4 ± 0.8 versus 2.7 ± 1.0	N/A	85.0% versus 81.8%
Rosa et al. [13]; (2013, Portugal)	Prospective RCT	60	83.3% versus 65%	60% versus 44.4%	100% versus 88.9%
Dai et al. [14]; (2005, Switzerland)	Prospective blinded nonrandomized trial	61	3.04 versus 2.41	N/A	97% versus 76%
Ben-Soussan et al. [15]; (2005, France)	Retrospective study	42	57.6% versus 62.5%	46.2% versus 50.0%	92.3% versus 100.0%

PEG: polyethylene glycol, VCE: video capsule endoscopy, RCT: randomized-controlled trial, SBVQ: small bowel visualization quality, DY: diagnostic yield, CR: completion rate, N/A: not applicable, and NS: no significant. PEG 500 mL.