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To find the simplest and most effective method of intestinal preparation for dimethicone administration.
A randomized controlled trial of dimethicone mixed with compound polyethylene glycol electrolyte powder (group A) versus dimethicone alone was conducted in patients undergoing colonoscopy (group B) the two different administration methods were used to compare the defoaming effect of dimethicone and the detection rate of polyps ≤0.5cm. To find the best way to administer dimethicone during bowel preparation for colonoscopy.
In group A (n = 686), a bottle of dimethicone was mixed with the last package of compound polyethylene glycol electrolyte powder, dissolved in 1000ml water, and finished within 1 hour during bowel preparation.
Group B (n = 686) received a bottle of dimethicone after taking the last sip of compound polyethylene glycol electrolyte powder.
Investigators asked each patient and physician about the interval between the administration of dimethicone and the initiation of colonoscopy, the time to colonoscopy withdrawal, the bowel cleanliness score, the intestinal bubble score, and whether polyps ≤0.5cm in diameter were detected.
SPSS25.0 was used to analyze the data with two independent samples t test. The gender, age, the interval between the end of antifoams and the start of the examination, the time of withdrawal from colonoscopy during the examination, the intestinal cleanliness score, the intestinal bubble score, and the detection of polyps with diameter ≤0.5cm were analyzed between group A (dimethicone mixed with compound polyethylene glycol electrolyte powder) and group B (dimethicone alone).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| A | Experimental | The patients in this group mixed one bottle of simethicone into the final packet of compound polyethylene glycol electrolyte powder, dissolved it in 1000 ml of water, and consumed it within one hour. |
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| B | Experimental | The patients in this group took one bottle of simethicone orally after finishing the last sip of compound polyethylene glycol electrolyte solution. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Simethicone is mixed into the final packet of compound polyethylene glycol electrolyte powder | Drug | The patients added one bottle of simethicone when taking the final packet of compound polyethylene glycol electrolyte powder. |
| Measure | Description | Time Frame |
|---|---|---|
| Boston Bowel Preparation Scale | Bowel cleanliness was assessed using the Boston Bowel Preparation Scale (BBPS) in both groups, and the efficacy of bowel cleansing was compared between the two medication regimens to identify potential differences | During the colonoscopy procedure |
| Intestinal Bubble Score | Bowel foam levels were assessed using the Intestinal Bubble Score (IBS) in both groups, and the efficacy of foam clearance was compared between the two medication regimens to identify potential differences | During the colonoscopy procedure |
| Measure | Description | Time Frame |
|---|---|---|
| Detection rate of polyps | The detection rate of polyps ≤0.5 cm was compared between the two groups | During the colonoscopy procedure |
| Measure | Description | Time Frame |
|---|---|---|
| Time taken for colonoscope withdrawal | Record the endoscopy retraction time for two groups and compare whether there is a difference in the retraction time of endoscopy under the two different medication regimens. | During the colonoscopy procedure |
Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Linzhen Zhu, Bachelor | Contact | 15958902187 | 1504152@zju.edu.cn | |
| Hanfeng Lv, Bachelor | Contact | 13868058637 | 8620016@zju.edu.cn |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| the Fourth Affiliated Hospital of Zhejiang University | Yiwu | Zhejiang | China |
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| Take simethicone separately | Drug | Take one bottle of simethicone orally after finishing the last sip of compound polyethylene glycol electrolyte solution. |
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