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JOURNAL ARTICLE
RANDOMIZED CONTROLLED TRIAL
Split-dose picosulfate, magnesium oxide, and citric acid solution markedly enhances colon cleansing before colonoscopy: a randomized, controlled trial.
Gastrointestinal Endoscopy 2012 March
BACKGROUND: Picosulfate, magnesium oxide, and citric acid solution is a small-volume agent for colon cleansing before colonoscopy that is extremely well tolerated by patients, safe, and efficacious. Studies of other cleansing agents have suggested that split-dose regimens may further enhance efficacy.
OBJECTIVE: To examine whether split-dosing of picosulfate, magnesium oxide, and citric acid solution increases bowel cleansing efficacy while maintaining tolerability and safety.
DESIGN: Prospective, randomized, single-blinded, controlled trial.
SETTING: Outpatient tertiary care center.
PATIENTS: A total of 236 patients underwent colonoscopy (mean age 56 years, 53.8% female).
INTERVENTIONS: Patients in the traditional arm (n = 123) consumed 1 sachet of solution at 5:00 pm and 10:00 pm the night before the colonoscopy. Patients in the split-dose arm (n = 127) consumed 1 sachet at 7:00 pm the night before and another sachet 4 hours before their colonoscopy appointment.
MAIN OUTCOME MEASUREMENTS: Ottawa Bowel Preparation Scale (OBPS) score, Aronchick score, safety, tolerability.
RESULTS: The 113 and 109 patients in the split-dose and traditional arms, respectively, had OBPS scores for analysis. Overall, the OBPS scores in the split-dose group were significantly improved compared with the traditional dose group (4.05 vs 5.51, P < .001). This was mostly attributed to improvements in right-sided colon cleansing (1.22 in split-dose vs 2.14 in traditional arm, P < .001). Both regimens were well tolerated by patients, and no safety issues were identified.
LIMITATIONS: This was a single-center study. Disturbances in sleep related to the preparation were not assessed.
CONCLUSIONS: The split-dose regimen of picosulfate, magnesium oxide, and citric acid solution is superior to the traditional dosing regimen for colon cleansing before colonoscopy. (
CLINICAL TRIAL REGISTRATION NUMBER: NCT00885274.).
OBJECTIVE: To examine whether split-dosing of picosulfate, magnesium oxide, and citric acid solution increases bowel cleansing efficacy while maintaining tolerability and safety.
DESIGN: Prospective, randomized, single-blinded, controlled trial.
SETTING: Outpatient tertiary care center.
PATIENTS: A total of 236 patients underwent colonoscopy (mean age 56 years, 53.8% female).
INTERVENTIONS: Patients in the traditional arm (n = 123) consumed 1 sachet of solution at 5:00 pm and 10:00 pm the night before the colonoscopy. Patients in the split-dose arm (n = 127) consumed 1 sachet at 7:00 pm the night before and another sachet 4 hours before their colonoscopy appointment.
MAIN OUTCOME MEASUREMENTS: Ottawa Bowel Preparation Scale (OBPS) score, Aronchick score, safety, tolerability.
RESULTS: The 113 and 109 patients in the split-dose and traditional arms, respectively, had OBPS scores for analysis. Overall, the OBPS scores in the split-dose group were significantly improved compared with the traditional dose group (4.05 vs 5.51, P < .001). This was mostly attributed to improvements in right-sided colon cleansing (1.22 in split-dose vs 2.14 in traditional arm, P < .001). Both regimens were well tolerated by patients, and no safety issues were identified.
LIMITATIONS: This was a single-center study. Disturbances in sleep related to the preparation were not assessed.
CONCLUSIONS: The split-dose regimen of picosulfate, magnesium oxide, and citric acid solution is superior to the traditional dosing regimen for colon cleansing before colonoscopy. (
CLINICAL TRIAL REGISTRATION NUMBER: NCT00885274.).
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