title: Quality of small bowel preparation for video-capsule endoscopy. Prospective comparison of two different preparations.
abstract: OBJECTIVE
  The best preparation for successful small bowel video-capsule endoscopy (VCE) is still unknown. The primary aim of our study was to compare sodium phosphate (PS) and polyethylene glycol (PEG) purge on the quality of small bowel preparation.
  
  
  METHODS
  In this prospective, non-randomized, two centers study, we evaluated 47 and 48 consecutive outpatients who received PS and PEG preparations, respectively. Two independent investigators measured the proportion of small bowel transit time (SBTT) without clean mucosa. Two other investigators assessed bowel preparation independently, using a visual analogue scale (VAS).
  
  
  RESULTS
  The proportion of SBTT without clean mucosa was similar for both preparations, in the proximal [3.8 (2.1-8.7) % vs. 4.85 (2.7-9.7) %, p = 0.24)] and in the distal half [31.9 (10.7-52.5) % vs. 22.9 (6.9-57.7) %, p = 0.48] of VCE recording. There was moderate - good correlation of VAS assessment of bowel preparation with the proportion of SBTT without clean mucosa in the proximal (r = 0.69, p < 0.001) and in the distal half (r = 0.76, p < 0.001) of the recording. The outcome measures of the studies were similar for both preparations.
  
  
  CONCLUSIONS
  PS and PEG preparations result in similar quality of small bowel preparation and similar outcome measures of VCE studies. VAS assessment could be an alternative measure of bowel preparation in clinical practice.
authors.affiliation: Hepatogastroenterology Unit, 2nd Department of Internal Medicine - Propaedeutic, Medical School, Athens University, "Attikon" University General Hospital, Athens, Greece. ktriant@med.uoa.gr
authors.forename: Konstantinos
authors.initials: K
authors.lastname: Triantafyllou
authors.forename: Chryssostomos
authors.initials: C
authors.lastname: Kalantzis
authors.forename: Aggelos A
authors.initials: AA
authors.lastname: Papadopoulos
authors.forename: Pericles
authors.initials: P
authors.lastname: Apostolopoulos
authors.forename: Dimitris
authors.initials: D
authors.lastname: Ladas
authors.forename: Theodora
authors.initials: T
authors.lastname: Kalli
authors.forename: Vassiliki
authors.initials: V
authors.lastname: Kakavetsi
authors.forename: Nikolaos
authors.initials: N
authors.lastname: Kalantzis
authors.forename: Spiros D
authors.initials: SD
authors.lastname: Ladas
mesh_terms: D053704:Capsule Endoscopy; D002400:Cathartics / Q000008:administration & dosage*; D005260:Female; D005772:Gastrointestinal Transit; D006801:Humans; D007410:Intestinal Diseases / Q000175:diagnosis*; D007421:Intestine, Small; D008297:Male; D008875:Middle Aged; D010710:Phosphates / Q000008:administration & dosage; D011092:Polyethylene Glycols / Q000008:administration & dosage; D011446:Prospective Studies; D012044:Regression Analysis; D018709:Statistics, Nonparametric
chemical_list: D002400:Cathartics; D010710:Phosphates; D011092:Polyethylene Glycols; C018279:sodium phosphate