• Dis. Colon Rectum · Jul 2004

    Randomized Controlled Trial Comparative Study Clinical Trial

    Carbohydrate-electrolyte (E-Lyte) solution enhances bowel preparation with oral fleet phospho-soda.

    • Joe J Tjandra and Peter Tagkalidis.
    • Department of Colorectal Surgery, Royal Melbourne and Melbourne Private Hospitals, Melbourne, Australia. Tjandra@connexus.net.au
    • Dis. Colon Rectum. 2004 Jul 1; 47 (7): 1181-6.

    PurposeBowel preparation with oral sodium phosphate can cause symptomatic dehydration and electrolyte disturbances. This randomized, controlled trial was designed to evaluate whether carbohydrate-electrolyte (E-Lyte) solution enhanced bowel preparation and improved patient acceptance with oral sodium phosphate.MethodsA total of 187 consecutive adults undergoing colonoscopy by two endoscopists were randomized to receive two packets of oral sodium phosphate (Fleet Phospho-soda) with or without additional supplement of a carbohydrate-electrolyte (E-Lyte) solution. All patients and endoscopists completed a standardized questionnaire. Urine-specific gravity and serum biochemistry were randomly performed in 150 and 50 patients, respectively.ResultsNinety patients were randomized to have oral sodium phosphate with E-Lyte supplements (Group 1) and 94 patients to sodium phosphate without E-Lyte supplements (Group 2). The groups were similar in age and gender, indication for colonoscopy, and previous colonic surgery. Patients taking E-Lyte supplement had significantly less dizziness (none, 80 vs. 56 percent; P < 0.001) and a trend toward less nausea (none, 70 vs. 56 percent; P = 0.05). All patients in Group 1 completed the bowel preparation as opposed to 3 percent of Group 2 being unable to complete the preparation. Hypokalemia was significantly more frequent ( P = 0.008) in Group 2 patients without E-Lyte supplements. More patients in Group 2 needed intravenous rehydration (11 vs. 4 percent). Differences in serum creatinine and urine-specific gravity suggested possibly a lesser degree of hypovolemia in patients taking E-Lyte supplements. The quality of bowel cleansing in patients taking E-Lyte supplements was considered better by both the endoscopists and patients.ConclusionsCarbohydrate-electrolyte (E-Lyte) solution protects against hypokalemia, improves patient tolerability, and may enhance use of oral sodium phosphate as a bowel-preparation agent.

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