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This prospective, randomize, controlled trial will compared cap-assisted water exchange with water exchange in patients undergoing sedated colonoscopy. Investigators test the hypothesis that that cap-assisted water exchange is more efficient and causes a shorter insertion time.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| water exchange | Active Comparator | The air was turned off at the beginning of colonoscopy. Water was infused and suctioned at the same time during insertion. The air was turned on when the colonoscope reached the cecum. |
|
| cap-assisted water exchange | Experimental | Cap was mounted to the tip of the colonoscope when water exchange was performed. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| cap-assisted water exchange | Device | a transparent cap was mounted to the tip of colonoscopy when water exchange was performed. |
|
| Measure | Description | Time Frame |
|---|---|---|
| cecal intubation time | when the colonoscope reaches the cecum, an average of 14 minutes |
| Measure | Description | Time Frame |
|---|---|---|
| Dose of propofol | The end of colonoscopy, an average of 14 minutes | |
| adenoma detection rate | when histology analysis of the removed polyps are available | One week after colonoscopy |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Yu-Hsi Hsieh, MD | Dalin Tzu Chi Hospital. Tzu Chi medication Foundation | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Dalin Tzu Chi General Hospital | Chiayi City | Taiwan | 622 | Taiwan |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 22898423 | Background | Leung FW, Amato A, Ell C, Friedland S, Harker JO, Hsieh YH, Leung JW, Mann SK, Paggi S, Pohl J, Radaelli F, Ramirez FC, Siao-Salera R, Terruzzi V. Water-aided colonoscopy: a systematic review. Gastrointest Endosc. 2012 Sep;76(3):657-66. doi: 10.1016/j.gie.2012.04.467. | |
| 21997547 | Background | Rastogi A, Bansal A, Rao DS, Gupta N, Wani SB, Shipe T, Gaddam S, Singh V, Sharma P. Higher adenoma detection rates with cap-assisted colonoscopy: a randomised controlled trial. Gut. 2012 Mar;61(3):402-8. doi: 10.1136/gutjnl-2011-300187. Epub 2011 Oct 13. |
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| water exchange | Procedure | water was infused and suctioned at the same time during insertion of colonoscope |
|
| 17100978 | Background | Kondo S, Yamaji Y, Watabe H, Yamada A, Sugimoto T, Ohta M, Ogura K, Okamoto M, Yoshida H, Kawabe T, Omata M. A randomized controlled trial evaluating the usefulness of a transparent hood attached to the tip of the colonoscope. Am J Gastroenterol. 2007 Jan;102(1):75-81. doi: 10.1111/j.1572-0241.2006.00897.x. Epub 2006 Nov 13. |
| 19098847 | Background | Lee YT, Lai LH, Hui AJ, Wong VW, Ching JY, Wong GL, Wu JC, Chan HL, Leung WK, Lau JY, Sung JJ, Chan FK. Efficacy of cap-assisted colonoscopy in comparison with regular colonoscopy: a randomized controlled trial. Am J Gastroenterol. 2009 Jan;104(1):41-6. doi: 10.1038/ajg.2008.56. |