Abdominal Compression Administered Early by the Colonoscopist During Water Exchange Colonoscopy
NCT ID: NCT03954561
Last Updated: 2021-06-29
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
120 participants
INTERVENTIONAL
2017-05-15
2018-08-14
Brief Summary
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The loop formation during water exchange is less severe as compared with during air insufflation and can be reduced quite readily. Traditionally an assistant is not asked to administer abdominal compression until the endoscopist has struggled for some time and failed to reduce the loops by withdrawal. The colonoscopist can administer the abdominal compression whenever the scope is not advancing smoothly, probably in the early stage of loop formation. We test the hypothesis that colonoscopist administered abdominal compression to remove loops in their early stage of formation hastens cecal intubation.
A total of 120patients will be randomized in a 1:1 ratio (n=60 per group). When the tip of the scope doesn't advance or paradoxical movements occur, loop reduction by withdrawal of the scope will be implemented. If looping persists, abdominal compression will be applied. In the endoscopist-administered abdominal compression (endoscopist) group, the colonoscopist will apply the compression with his right hand and counter the pressure by pushing the back of the patient with his left forearm with the colonoscope in his left hand. The compression will be administered at left lower quadrant when the scope is in the sigmoid colon and at left lower quadrant and upper abdomen, respectively, when the scope tip reaches the transverse or ascending colon. If the formation of loop cannot be overcome, an assistant will apply the abdominal compression instead. In the assistant-administered abdominal compression (assistant) group, an endoscopic assistant will apply abdominal compression when a loop is formed. The assistant will apply the compression at the left lower quadrant initially, but quickly shift to other parts as needed depending on the tip location of colonoscope. If manual compressions fail, then the patients' position will be changed.
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
CROSSOVER
DIAGNOSTIC
NONE
Study Groups
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endoscopist group
endoscopist-administered abdominal compression group
endoscopist-administered abdominal compression
The endoscopist administers abdominal compression when loop formation encountered.
assistant group
assistant-administered abdominal compression group
assistant-administered abdominal compression
A assistant administers abdominal compression when loop formation encountered.
Interventions
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endoscopist-administered abdominal compression
The endoscopist administers abdominal compression when loop formation encountered.
assistant-administered abdominal compression
A assistant administers abdominal compression when loop formation encountered.
Eligibility Criteria
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Inclusion Criteria
* Patients who undergo WE colonoscopy performed by the two endoscopists (YHH and CWT) at the endoscopic suite will be included.
Exclusion Criteria
* age \<20 years old,
* age \>80 years old,
* previous partial colectomy, not completely consumed bowel prep regimen, massive ascites, or known colonic obstruction, morbid obesity (BMI ≥ 35).
20 Years
80 Years
ALL
No
Sponsors
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Dalin Tzu Chi General Hospital
OTHER
Responsible Party
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Yu-Hsi hsieh
Chief of Gastroenterology Endoscopy Suite
Principal Investigators
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Yu-Hsi Hsieh, MD
Role: PRINCIPAL_INVESTIGATOR
Buddhist Dalin Tzu Chi Hospital
Locations
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Buddhist Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation
Chiayi City, Taiwan, Taiwan
Countries
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References
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Other Identifiers
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A10601001
Identifier Type: -
Identifier Source: org_study_id
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