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Updated: Oct 4, 2026

Structured Approach to Colonoscopy Technique Optimization: A Single-Center Experience with Novice Endoscopists
Published on: July 11, 2025
[Preparation for colonoscopy: A comparison between 3 commercially available Golytely solutions]
1Kliniken der Stadt Köln, Krankenhaus Köln-Merheim (Chefarzt Prof. Dr. M. Weber). Bernd.Krakamp@rrz.uni-koeln.de
Abstract:
The preparation for colonoscopy is essential for the results of the examination. The effectiveness of 3 commercially available Golytely solutions for colonoscopy (Original-Golytely-salt, Oralav and Delcoprep) were compared in a randomized prospective study. 310 outpatients were randomized into 3 groups. One of the above-mentioned solutions were used in these patients. Before the examination the patients were asked to drink 3 l of the given solution within 2 h. The colonoscopy was realized within 3-5 h after the end of preparation. Outcome criteria were the subjective acceptability of the solution for the patient, cleanness of the bowel and the formation of foam. In all 3 groups sufficient up to very good results could be achieved. There were no significant differences in the 3 groups. We conclude that the used procedure is absolutely sufficient to prepare for colonoscopy and that administration of liquids of more than 3 l or the use of enema or laxans on the previous day, are unnecessary. The suggested procedure can be used for children, too.
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