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Diet Selection Pre-Colonoscopy: Comparison Between Clear, Low-residue and Regular Diet

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Спонсори
Makassed General Hospital

Ключови думи

Резюме

Colonoscopy has been used for ages as an evaluating tool of the colonic mucosa for screening and early detection of colonic cancer. Several studies have reported that poor bowel preparation reduces detection of polyps that may have the potential to be cancerous. Polyethylene glycol (PEG) has become the most commonly used agent for colon cleansing because it does not cause fluid exchange across the mucosal membrane and thereby limits fluid and electrolyte disturbances.
Only a few studies have evaluated the effects of different diet types on bowel preparation under controlled circumstances. Various studies were made to find the best pre-colonoscopy diet with no single clear study comparing all 3 dietary regimen together was carried out. So, evidence for the efficacy of a RD (regular diet) in bowel preparation is lacking, which led us to question whether it is reasonable to recommend a RD for 24 hours prior to colonoscopy as part of a PEG-based bowel prepa¬ration in healthy inpatients.
The investigators are proposing to carry out a randomized clinical trial at Makassed General Hospital and include patients from October 2018 till February 2019. The data of 90 stable adult patients will be obtained through patients' interviews.
In the trial, all adult inpatients (range, 18 to 80 years old) undergoing colonoscopy for colorectal cancer (CRC) screening in Makassed General Hospital with nonspecific gastrointestinal symptoms will be candidates for inclusion in the study. Patient receiving endoscopy will be asked to answer multiple questions on the day of procedure. Patients will be randomly allocated to one of 3 groups: Regular Diet (RD), Clear Fluid (CF) and Low-Residue Diet (LRD). The primary outcome will consist of the quality of bowel preparation and efficacy of colon cleansing.

Описание

The study will be conducted in Makassed General Hospital (MGH) including all admitted patients receiving colonoscopy for the different indications. All patients will receive low volume 2L alpha peg split preps given 8 hours apart at a rate of 1 cup q 30 minutes with addition of 1 L of pure water post each liter with the addition 10mg of bisacodyl the night before.

In the trial, all adult inpatients (range, 18 to 80 years old) undergoing colonoscopy for CRC screening In MGH or with nonspecific gastrointestinal symptoms will be candidates for inclusion in the study. Exclusion criteria will be as follows: outpatient status; serious medical condi¬tions, such as severe cardiac, renal, liver, or metabolic disease; stroke or dementia; major psychiatric illness; known allergy to polyethylene glycol (PEG); a previous colon resection; incomplete colonoscopy examination (failure of cecal intubation); or functional constipation defined by Rome III diagnostic criteria.

Patient information was collected before procedure which included age, gender, weight, height, body mass index (BMI), indications for colonoscopy, and history of previous operation and colonoscopy, as well as bowel frequency. Patients will complete a questionnaire before colonoscopy regarding their preparation experience (the start and end time for PEG solution ingestion; the amount of PEG solution ingested; any associated adverse effects, includ¬ing abdominal pain, nausea, vomiting, headache, dizziness, and others; and willingness to repeat the same preparation in the future) with the help of an endoscopy nurse who will be blinded to the dietary randomization.

Participants were categorized into subgroups with regard to compliance; good compliance was defined as less than 25% of the PEG solution remaining, and poor compliance was defined as 25% or more of the PEG solution remaining. The subjects were randomly assigned to either eat Regular diet (RD), clear fluid diet (CLD) or low-residue diet (LRD) explained to each randomized case by in-hospital dietitian. In all three groups the offered diet was given at breakfast and lunch with fluids only given at dinner.

Дати

Последна проверка: 08/31/2019
Първо изпратено: 09/18/2018
Очаквано записване подадено: 09/20/2018
Първо публикувано: 09/23/2018
Изпратена последна актуализация: 09/25/2019
Последна актуализация публикувана: 09/26/2019
Действителна начална дата на проучването: 09/30/2018
Приблизителна дата на първично завършване: 05/29/2019
Очаквана дата на завършване на проучването: 05/29/2019

Състояние или заболяване

Bowel Preparation Quality

Интервенция / лечение

Other: Regular diet

Other: Clear fluid diet

Other: Low residue diet

Diagnostic Test: Colonoscopy

Фаза

-

Групи за ръце

ArmИнтервенция / лечение
Experimental: Regular diet
no dietary restriction
Other: Regular diet
Patients will be provided with any type of food preferred at any time in any quantity
Placebo Comparator: Clear fluid diet
no solid material
Other: Clear fluid diet
Patients will be provided with Plain water Fruit juices without pulp, such as grape juice, filtered apple juice, and cranberry juice Soup broth (bouillon or consommé) Clear sodas, such as ginger ale and Sprite Gelatin (Jell-O) Tea or coffee with no cream or milk added Sports drinks that don't have color
Experimental: Low residue diet
easy digestible food
Other: Low residue diet
The Low Residue Diet is the same as the soft diet with the added limitation of milk to one pint. It provides foods that are easily digestible. It is often used as a transition diet from liquids to the general diet. Indigestible fiber is reduced by using tender cooked vegetables and ripe, canned or cooked fruits from which the tough skins and seeds have been removed. Tender meat or meat made tender in the cooking process is used, thus reducing the amount of connective tissue. Adequacy: By following the recommended guidelines, the diet will be adequate according to the Recommended Daily Allowance. Note: For patients with dentures this diet can be modified by the substitution of ground meat for whole meat and excluding all raw vegetables. Personal tolerances determine food choices; avoid foods that cause GI (gastrointestinal) distress prior to the admission even though that food may be on the "foods included" list.

Критерии за допустимост

Възрасти, отговарящи на условията за проучване 18 Years Да се 18 Years
Полове, допустими за проучванеAll
Приема здрави доброволциДа
Критерии

Inclusion Criteria:

- inpatients 18 to 75 years old

- undergoing colonoscopy for CRC screening

- with nonspecific gastrointestinal symptoms

Exclusion Criteria:

- outpatient status;

- serious medical conditions, such as severe cardiac, renal, liver, or metabolic disease;

- stroke or dementia;

- major psychiatric illness;

- known allergy to PEG;

- previous colon resection;

- incomplete colonoscopy examination (failure of cecal intubation);

- functional constipation defined by Rome III diagnostic criteria.

Резултат

Първични изходни мерки

1. bowel preparation quality: Ottawa bowel preparation scale [within 15 minutes after procedure]

Bowel preparation quality will be assessed by Ottawa bowel preparation scale. The scale assesses three components of the large intestine: (1) the rectosigmoid colon, (2) the mid colon and (3) the right colon. A maximum score of 4 is used for each section of the large intestine. A score of 0 is given if the bowel preparation is excellent, a score of 1 is given if the bowel preparation is good, a score of 2 is given if the bowel preparation is fair, a score of 3 is given if the bowel preparation is poor, a score of 4 is given if the bowel preparation is inadequate. The total score is calculated by adding up all 3 scores. The scale has a range from 0 (perfect) to 14 (a completely unprepared colon).

Вторични изходни мерки

1. best convenient dietary regimen [before procedure]

Find out the best convenient dietary regimen for pre-colonoscopy preparation evaluated through a questionnaire to assess patient's experience with the bowel preparation model. The questionnaire asks about compliance (good or poor), acceptance (yes or no) and willingness to repeat preparation (yes or no)

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