Comparison of two bowel preparations for colonoscopy: Sodium picosulphate with magnesium citrate versus sulphate-free polyethylene glycol lavage solution

Arie Regev*, Gerald Fraser, George Delpre, Alfredo Leiser, Ami Neeman, Eran Maoz, Victor Anikin, Yaron Niv

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Objectives: Adequate preparation of the bowel is essential for accurate colonoscopic examination. We compared colonic preparation with sodium picosulphate plus magnesium citrate (SPS-Mg) with sulphate-free polyethylene glycol electrolyte lavage (PEG-EL) solution before colonoscopy, for quality of bowel cleansing, patient discomfort, and side effects. Methods: Sixty- eight consecutive patients were randomly assigned to receive either 3 sachets of SPS-Mg (16.5 g each) (n = 39) or 3 L of PEG-EL (n = 29) on the day before colonoscopy. Shortly before the procedure each patient was interviewed to determine the degree of discomfort (1 = none or mild, 2 = moderate, 3 = severe) and side effects. The quality of bowel cleansing was graded by a gastroenterologist who was unaware of the method of preparation (from 1 = poor to 4 = excellent). Results: Of the 29 PEG-EL patients, four (14%) did not complete the preparation because of side effects. The degree of discomfort was significantly greater with PEG-EL (mean score, 2.3 ± 0.7) than with SPS-Mg (mean score, 1.4 ± 0.5; p < 0.01). Nausea and vomiting were significantly more common in the PEG-EL group (38% vs 13%; p < 0.05). Using intention-to-treat analysis, bowel cleansing proved to be significantly better with SPS-Mg than with PEG-EL (mean score ± SD, 3.05 ± 0.9 and 2.57 ± 1.0, respectively; p = 0.036). Conclusions: Colonic preparation with SPS- Mg is better tolerated, associated with significantly fewer side effects, and results in higher quality bowel cleansing than preparation with PEG-EL.

Original languageEnglish
Pages (from-to)1478-1482
Number of pages5
JournalAmerican Journal of Gastroenterology
Volume93
Issue number9
DOIs
StatePublished - Sep 1998

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