Efficacy of Morning-only Bowel Preparation for Afternoon Colonoscopy.

Phase 3

Completed

Interventions: Drug: Polyethylene Glycol afternoon
Drug: Polyethylene Glycol morning

Brief Summary: The study aims to study the adequacy of bowel preparation (colon cleansing) for afternoon colonoscopies. The conventional regimen of giving bowel prep on the evening prior to the day of the colonoscopy will be compared with that given on the morning of an afternoon colonoscopy. Endoscopist scoring the bowel cleansing efficacy with an Ottawa Scale are blinded to the randomization process.

Detailed Description: Two bowel preparation regimens of Polyethylene Glycol (PEG), commonly referred to as "Golytely" will be tested for their efficacy (bowel cleansing effect) and patient tolerability. The goal is to reduce the failure rates of afternoon colonoscopies, for which, one of the main reasons attributed is inadequate bowel preparation. For the afternoon colonoscopies, the conventional PEG regimen given on the evening prior to the day of the colonoscopy will be compared with the novel PEG regimen given on the morning of the day of the colonoscopy. The comparison will be drawn for two measures - bowel cleansing effect measured from the questionnaire given to the gastroenterologists performing the colonoscopy and the patient tolerability evaluated from the information gathered from the patient's questionnaire.

Recruitment & Eligibility

Inclusion Criteria

All patients attending the GI Clinic at CCF who are prescribed colonoscopy and are willing to get the procedure done in the afternoon.

Exclusion Criteria

Arm && Interventions

Group	Intervention	Description
Polythylene Glycol (PEG) in the evening	Polyethylene Glycol afternoon	Bowel preparation with Polyethylene Glycol given in the evening prior to the day of the afternoon colonoscopy. 'Polyethylene Glycol afternoon'
Polythylene Glycol (PEG) in the Morning	Polyethylene Glycol morning	Bowel preparation with Polyethylene Glycol given on the morning of the day of the afternoon colonoscopy. 'Polyethylene Glycol morning'

Primary Outcome Measures

Name	Time	Method
Comparing All Morning Bowel Prep to Evening Bowel Prep for Patients Undergoing Afternoon Colonoscopies. (Using Ottawa Scale Scores, Range 0-14) Lower Score Indicates a Better Outcome.	Within 1 hr after the colonoscopy procedure

Secondary Outcome Measures

Name	Time	Method
Patient Satisfaction in the Two Groups, All Morning Prep vs. All Evening Bowel Prep.	An hour before the colonoscopy procedure	Variable used to assess patient satisfaction: Loss of sleep. The numbers below depict the number of participants who experienced loss of sleep.