Comparative Efficacy of Water & Indigo Carmine vs. Water or Air Method on Adenoma Detection Rate (ADR) - a Randomized Controlled Trial (RCT)
|ClinicalTrials.gov Identifier: NCT01607255|
Recruitment Status : Completed
First Posted : May 30, 2012
Last Update Posted : October 6, 2017
VA Office of Research and Development
Information provided by (Responsible Party):
VA Office of Research and Development
No Study Results Posted on ClinicalTrials.gov for this Study
|Recruitment Status :||Completed|
|Primary Completion Date :||June 30, 2017|
|Study Completion Date :||September 30, 2017|
Publications of Results:
Leung F, Harker J, Leung J, Siao-Salera R, Mann S, Ramirez F, Friedland S, Amato A, Radaelli F, Paggi S, Terruzzi V, Hsieh Y. Removal of infused water predominantly during insertion (water exchange) is consistently associated with a greater reduction of pain score - review of randomized controlled trials (RCTs) of water method colonoscopy. J Interv Gastroenterol. 2011 Jul;1(3):114-120. Epub 2011 Jul 1.
Leung JW, Ransibrahmanakul K, Toomsen L, Mann SK, Siao-Salera R, Leung FW. The water method combined with chromoendoscopy enhances adenoma detection. J Interv Gastroenterol. 2011 Apr;1(2):53-58.
Leung FW, Leung JW, Siao-Salera RM, Mann SK, Jackson G. The water method significantly enhances detection of diminutive lesions (adenoma and hyperplastic polyp combined) in the proximal colon in screening colonoscopy - data derived from two RCT in US veterans. J Interv Gastroenterol. 2011 Apr;1(2):48-52.
Leung JW, Do LD, Siao-Salera RM, Ngo C, Parikh DA, Mann SK, Leung FW. Retrospective analysis showing the water method increased adenoma detection rate - a hypothesis generating observation. J Interv Gastroenterol. 2011 Jan;1(1):3-7.
Leung J, Mann S, Siao-Salera R, Ransibrahmanakul K, Lim B, Canete W, Samson L, Gutierrez R, Leung FW. A randomized, controlled trial to confirm the beneficial effects of the water method on U.S. veterans undergoing colonoscopy with the option of on-demand sedation. Gastrointest Endosc. 2011 Jan;73(1):103-10. doi: 10.1016/j.gie.2010.09.020.
Leung JW, Mann SK, Siao-Salera R, Ransibrahmanakul K, Lim B, Cabrera H, Canete W, Barredo P, Gutierrez R, Leung FW. A randomized, controlled comparison of warm water infusion in lieu of air insufflation versus air insufflation for aiding colonoscopy insertion in sedated patients undergoing colorectal cancer screening and surveillance. Gastrointest Endosc. 2009 Sep;70(3):505-10. doi: 10.1016/j.gie.2008.12.253. Epub 2009 Jun 24.
Leung JW, Thai A, Yen A, Ward G, Abramyan O, Lee J, Smith B, Leung F. Magnetic endoscope imaging (ScopeGuide) elucidates the mechanism of action of the pain-alleviating impact of water exchange colonoscopy - attenuation of loop formation. J Interv Gastroenterol. 2012 Jul;2(3):142-146. Epub 2012 Jul 1.
Yen AW, Leung JW, Leung FW. A new method for screening and surveillance colonoscopy: Combined water-exchange and cap-assisted colonoscopy. J Interv Gastroenterol. 2012 Jul;2(3):114-119. Epub 2012 Jul 1.
Yen AW, Leung JW, Leung FW. A novel method with significant impact on adenoma detection: combined water-exchange and cap-assisted colonoscopy. Gastrointest Endosc. 2013 Jun;77(6):944-8. doi: 10.1016/j.gie.2013.01.011. Epub 2013 Mar 6.
Leung JW, Siao-Salera R, Abramyan O, Mann SK, Ward G, Yen A, Gutierrez R, Leung FW. Impact of water exchange colonoscopy on serum sodium and potassium levels: an observational study. Dig Dis Sci. 2014 Mar;59(3):653-7. doi: 10.1007/s10620-013-2934-0. Epub 2013 Nov 20.
Ngo C, Leung JW, Mann SK, Terrado C, Bowlus C, Ingram D, Leung FW. Interim report of a randomized cross-over study comparing clinical performance of novice trainee endoscopists using conventional air insufflation versus warm water infusion colonoscopy. J Interv Gastroenterol. 2012 Jul;2(3):135-139. Epub 2012 Jul 1.
Leung J, Mann S, Siao-Salera R, Ngo C, McCreery R, Canete W, Leung F. Indigocarmine added to the water exchange method enhances adenoma detection - a RCT. J Interv Gastroenterol. 2012 Jul;2(3):106-111. Epub 2012 Jul 1.