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Polyethylene Glycol-3350 (Miralax®)+1.9-L Sports Drink (Gatorade®)+2 Tablets of Bisacodyl Results in Inferior Bowel Preparation for Colonoscopy Compared With Polyethylene Glycol-Ascorbic Acid (MoviPrep®)

Polyethylene Glycol-3350 (Miralax®)+1.9-L Sports Drink (Gatorade®)+2 Tablets of Bisacodyl Results in Inferior Bowel Preparation for Colonoscopy Compared With Polyethylene Glycol-Ascorbic Acid (MoviPrep®)

Maqsood Ahmed Khan, Kevin B Patel, Mohammed Nooruddin, Garth Swanson, Louis Fogg, Ali Keshavarzian, Michael Brown

Turk J Gastroenterol. 2018 Jan;29(1):67-74.

PMID: 29391310

Abstract:

Background/aims:
Polyethylene glycol (PEG)-3350, approved by Food and Drug Administration (FDA) only for constipation, combined with 1.9 L of sports drink (SD) (GatoradeR) and bisacodyl (B) is commonly used in outpatient practice for bowel preparation due to cited patient satisfaction and tolerability of this specific regimen. We aim to compare PEG-3350 (MiralaxR) with PEG-AA-based (MoviPrepR) in terms of efficacy, patient satisfaction, and the effects of these two regimen on serum electrolytes.
Materials and methods:
This study is a prospective, single-blinded, block randomized trial comparing single-dose PEG-3350+SD+B to split-dose 2-L PEG-AA in the outpatient endoscopy unit in patients undergoing colonoscopy. Basic metabolic profiles were checked on the day of randomization and on the day of procedure. Patients completed a survey on the day of procedure. Bowel preparation quality was assessed using the Boston Bowel Preparation Scale (BBPS) by two endoscopists and a nurse present during the procedure.
Results:
We randomized 150 patients (74 PEG-3350+SD+B and 76 PEG-AA). The PEG-AA group had significantly higher BBPS scores in the right colon by Endoscopist 1, Nurse, and Endoscopist 2 (p 0.005, <0.000, 0.001) and in the left and transverse colon by Nurse and Endoscopist 2 (p 0.004, 0.26, 0.000, 0.006). There was no statistically significant difference in patient satisfaction or change in serum electrolytes between the two groups.
Conclusion:
Use of single-dose PEG-3350+SD+B results in inferior bowel preparation for colonoscopy compared with split-dose PEGAA and does not provide any advantage in regards to patient satisfaction. We therefore recommend discontinuing the use of PEG 3350 for bowel preparation.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP25322683-F	Polyethylene glycol 3350		25322-68-3	Price

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