Effect of Single Dose of 2L PEG on Bowel Preparation in Average-risk Patients Undergoing Colonoscopy
Effect of Single Dose of 2L PEG on Bowel Preparation in Average-risk Patients
Adequate quality of bowel preparation(BP) is important for colonoscopy. Several guidelines recommend that split-dose of 4L PEG should be used as a standard regime for BP. However, the high-volume PEG still results in lower compliance to the regime and increased cost.
Some high risk factors for inadequate BP have been identified, including old age, constipation, diabetes, the use of narcotics and prior history of inadequate BP. For average-risk patients without the high risk factors, the procedure of BP could be easier. In the previous study, with the use of single dose of 2L PEG, more than 90% of average-risk patients achieved adequate BP. Here investigators hypothesized that compared with the standard split dose of 4L PEG, single dose of 2L PEG may be not inferior in BP quality while may be accompanied with better tolerability.
調査の概要
研究の種類
入学 (実際)
段階
- 適用できない
連絡先と場所
研究場所
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Qinghai
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Xining、Qinghai、中国、810000
- Department of gastroenterology, Qinghai Provincial People's Hospital
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Shaanxi
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Xi'an、Shaanxi、中国、710032
- Department of gastroenterology, Shaanxi Second People's Hospital
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Shanxi
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Xi'an、Shanxi、中国、710032
- Endoscopic center, Xijing Hospital of Digestive Diseases
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- Patients undergoing colonoscopy;
Patients with average risks for inadequate BP (Patients were identified average-risk if they did not meet any factor of the following risk factors):
- Constipation
- Diabetes
- Parkinson's disease
- History of stroke or spine cord injure
- Prior history of inadequate bowel preparation
- BMI>25
- Use of tricyclic antidepressant or narcotics
Exclusion Criteria:
- History of colorectal resection;
- Suspected colonic stricture or perforation;
- Incomplete or complete bowel obstruction;
- Use of prokinetic agents or purgatives within 7 days;
- Toxic colitis or megacolon;
- Pregnancy or lactation;
- Unable to give informed consent;
- Haemodynamically unstable.
研究計画
研究はどのように設計されていますか？
デザインの詳細
- 主な目的：処理
- 割り当て：ランダム化
- 介入モデル：並列代入
- マスキング：ダブル
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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実験的：Single dose of 2L PEG
2 L of PEG solution was used on the day of colonoscopy.
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Patients at average risk for inadequate BP were given instructions for bowel preparation through phone call a day before scheduled colonoscopy.
Patients began to drink 2 L of PEG 4-6 hours before colonoscopy at a rate of 250 mL every 15 minutes.
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アクティブコンパレータ：Split-dose of 4L PEG
Split-dose of 4l PEG was used before and on the day of colonoscopy
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All patients at average risk for inadequate BP were given instructions for bowel preparation through phone call a day before scheduled colonoscopy.
the participants began to drink the first 2 L of PEG at 7:00-9:00 PM on the day before colonoscopy at a rate of 250 mL every 15 minutes.
On the day of the procedure, patients took the remaining 2 L 4-6 hours before colonoscopy.
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この研究は何を測定していますか？
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Rate of adequate bowel preparation(defined as a total BostonBowel Preparation Score ≥6 with each segmental BBPS≥2)
時間枠：1 year
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The adequacy of bowel preparation is defined as Boston Bowel Preparation Scale (BBPS), a 4-point scoring system applied to each of 3 broad regions of the colon: the right side, the transverse section, and the left side.
They were summed to give the total BBPS score, which ranged from 0 to 9.The withdrawal procedure was recorded by vedios.
The BBPS and segmental scores in each segment were judged by one endoscopist who was familiar with the criteria of BBPS and blinded to group allocation.
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1 year
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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出金時間
時間枠：1年
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1年
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Polyp detection rate
時間枠：1 year
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1 year
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Rate of adverse events
時間枠：1 year
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adverse events, such as vomiting, nausea, headache, abdominal pain
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1 year
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Cecal intubation rate
時間枠：1 year
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1 year
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Cecal intubation time
時間枠：1 year
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1 year
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Willingness to repeat bowel preparation
時間枠：1 year
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The number of patients have a willingness to undergo a repeated bowel preparation if needed
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1 year
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協力者と研究者
研究記録日
主要日程の研究
研究開始
一次修了 (実際)
研究の完了 (実際)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
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