This clinical trial is being conducted to assess whether dietary restriction with enteral nutrition prescribed could prevent nonadherence to dietary restrictions, enable additional reduction of the required volume of PEG-ELS.
Bowel preparation plays a vital role in the quality of colonoscopy.Bowel preparation consists of 2 key steps: dietary restriction and purgative ingestion.Two liters of PEG-ELS are widely used in Asian countries, but in a well-designed clinical trial，additional reduction of PEG-ELS volume seems feasible. Enteral nutrition may simplify the process and avoid unexpected intake of fiber-containing food. We hypothesized that dietary restriction with enteral nutrition prescribed could prevent nonadherence to dietary restrictions, enable additional reduction of the required volume of PEG-ELS.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SCREENING
Masking
SINGLE
Enrollment
248
Enteral Nutrition Powder Ensure for each meal.The duration of study is one day before colonoscopy.
Low volume PEG
Self-controlled low residue diet.
Ningbo first hospital
Ningbo, Zhejiang, China
the quality of bowel preparation
Evaluation of the quality of bowel preparation for each participant by the Ottawa bowel preparation scale(OBPS)，it's a validated scoring system with scores between 0 and 14, where 0 is the best score，The score comprises a sub score 0-4 for each colon segment: right, transverse and rectosigmoid colon.n addition, a score 0-2 is added to indicate the total amount of luminal fluid.
Time frame: 1day
patients' satisfaction with the process of bowel preparation
At the end of the procedure, the patients were asked about the satisfaction with the process of bowel preparation. Satisfaction includes bad，not so bad and good.Bad means that the patient is not satisfied with the program, not so bad means that the patient is satisfied with the plan, and good means that the patient is very satisfied with the plan.
Time frame: 1day
patients' willingness to have the colonoscopy done again at this facility in the future
It represent participants who wanted to choose the same protocol in the future as they received in this trial.Including yes and no two options, if yes, indicating that the patient is willing to undergo colonoscopy again, if no, indicating that the patient is reluctant to undergo colonoscopy again.
Time frame: 1day
comparison with previous experience
If patients with colonoscopy times ≥ 2, they need to compare with previous experience，Including better than last experience, similar to the last experience, and worse than the last experience.
Time frame: 1day
adverse events
It represent the incidence of abdominal cramping, bloating, nausea/vomiting after intake of PEG and/or enteral nutrition was compared.
Time frame: 1day
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Normal volume of PEG
Convenience of Protocol between enteral nutrition with low volume 1.5L PEG and Self-controlled diet with normal amount of 2L PEG Protocol
It represented the percentage of patients who thinks the protocol is easy to use.
Time frame: 1day