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Difficulty of Water-Assisted Colonoscopy Technique in Beginner, A Randomized Controlled Study

ABSTRACT: Interventions: WAC intervention, Colonoscopist use water to inflate the colon instead of air during insertion the colonoscope. The sterile water at room temperature is pumped into the system. Patient demographics, which are age, sex, weight, height, and waist circumference are recorded prior to a colonoscopy procedure. Vital sign is measured in all patients, that are blood pressure, heart rate and oxygen saturation. Prior to a colonoscopy procedure, the patient is positioned on their left side, and a transparent cap is attached to the tip of the colonoscope. In addition, all patients are typically administered 2 mg of midazolam intravenously for sedation during the procedure. Once the colonoscope is inserted, the air pump is turned off. Cecal intubation time is recorded when colonoscopist reach to the cecal floor, appendix orifice and the opening of terminal ilium. These landmark is indicators of a successful intubation of the entire colon. To evaluate the level of pain experienced by the patient during a colonoscopy procedure, a 10-points scale is used. This scale ranges from 0 to 10, where 0 indicates no pain and 10 indicates the highest level of pain. During the procedure, the nurse will ask the patient to provide their pain score every 3 minutes using the visual analog scale. If patient's pain score is greater than 3 or if the patient requests it, intravenous fentanyl (25 mcg) is administered to provide pain control. Vital sign is measured every 5 minutes during colonoscopy. During the withdrawal phase of colonoscopy procedure, air can be used to inflate the colon as usual. The time elapsed since reaching the cecal floor and the anus is recorded, and the timer is stopped when any procedure interventions, such as polypectomy or tis;Experimental Procedure/Surgery,Active Comparator Procedure/Surgery;Water-assisted colonoscopy,Carbon dioxide insufflation colonoscopy Primary outcome(s): The difficulty technique of colonoscopy between water-assisted colonoscopy and carbon dioxide colonoscopy in beginner 2 months after the end of intervention Cecal intubation time Study Design: Randomized

DISEASE(S): Difficulty Technique Of Beginner Colonoscopist In Out-patients Undergoing Colorectal Cancer Screening,Water-assist Colonoscopy, Carbon Dioxide Insufflation Colonoscopy, Difficulty Technique, Beginner Colonoscopist

PROVIDER: 27940 | ecrin-mdr-crc |

REPOSITORIES: ECRIN MDR

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Project description:Insufflation of the colon, usually with room air, is necessary to distend the lumen for exploration. Carbon dioxide (CO2) insufflation instead of room air insufflation (AI) has been shown to decrease symptoms of abdominal pain or discomfort during the procedure and particularly during the following 24 hours. CO2 is is rapidly absorbed by the intestinal mucosa and exhaled through respiration. AI colonoscopy has usually been the reference standard to compare colonoscopy using CO2 insufflation. In two recent articles AI was compared to either CO2 insufflation and Water-aided colonoscopy (WAC), which entails infusion of water to facilitate insertion to the cecum. WAC can be categorized broadly in Water Immersion (WI) and Water Exchange (WE). In WI water is infused during the insertion phase of colonoscopy, with removal of infused water predominantly during withdrawal. Occasional use of insufflation may be allowed. WE entails complete exclusion of insufflation, removal of residual colonic air pockets and feces, and suction of infused water predominantly during insertion to minimize distention. During the withdrawal phase insufflation is used to distend the colonic lumen. In the WAC arms of the two mentioned articles the insertion method used was WI, with infusion of water at room temperature or at 37°C. During withdrawal, air insufflation or either air or CO2 insufflation were employed. Compared to AI, CO2 insufflation and WI (using room air insufflation or CO2 insufflation during withdrawal) were effective in both studies in decreasing sedation requirement, pain and tolerance scores, with patients’ higher willingness to repeat the procedure. Until now no direct comparison has been made within a single study about pain score during colonoscopy using AI, CO2 insufflation, WI/CO2, WE/CO2, WI/AI and WE/AI. In this study we test the hypothesis that, compared to AI, CO2 insufflation and WAC/CO2-AI methods will decrease pain score during colonoscopy, with reduction of sedation requirement, and that WE will achieve the best result. This comparative study has also the aim to test the respective peculiarities of each method.

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Difficulty of Water-Assisted Colonoscopy Technique in Beginner, A Randomized Controlled Study

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