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Gastroenterology Research and Practice
Volume 2014, Article ID 541586, 8 pages
Clinical Study

Polyethylene Glycol Electrolyte Lavage Solution versus Colonic Hydrotherapy for Bowel Preparation before Colonoscopy: A Single Center, Randomized, and Controlled Study

1Department of Gastroenterology, Daping Hospital, The Third Military Medical University, 10 Changjiang Branch Road, Chongqing 400042, China
2Cadet Brigade, The Third Military Medical University, 30 Gaotanyan Street, Chongqing 400038, China
3Nursing Department, Daping Hospital, The Third Military Medical University, 10 Changjiang Branch Road, Chongqing 400042, China

Received 7 February 2014; Revised 9 May 2014; Accepted 16 May 2014; Published 5 June 2014

Academic Editor: Spiros D. Ladas

Copyright © 2014 Yan Cao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This single center, randomized, and controlled study aimed to compare the effectiveness and safety of polyethylene glycol electrolyte lavage (PEG-EL) solution and colonic hydrotherapy (CHT) for bowel preparation before colonoscopy. A total of 196 eligible outpatients scheduled for diagnostic colonoscopy were randomly assigned to the PEG-EL () or CHT () groups. Primary outcome measures included colonic cleanliness and adverse effects. Secondary outcome measures were patient satisfaction and preference, colonoscopic findings, ileocecal arrival rate, examiner satisfaction, and cecal intubation time. The results show that PEG-EL group was associated with significantly better colonic cleanliness than CHT group, fewer adverse effects, and increased examiner satisfaction. However, the CHT group had higher patient satisfaction and higher diverticulosis detection rates. Moreover, the results showed the same ileocecal arrival rate and patient preference between the two groups (). These findings indicate that PEG-EL is the preferred option in patients who followed the preparation instructions completely.