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CC BY-NC-ND 4.0 · Endosc Int Open 2019; 07(12): E1585-E1591
DOI: 10.1055/a-0996-7891
Original article
Owner and Copyright © Georg Thieme Verlag KG 2019

Comparison of colon adenoma detection rates using cap-assisted and Endocuff-assisted colonoscopy: a randomized controlled trial

Joseph Marsano
1   Division of Gastroenterology and Hepatology, University of California Davis School of Medicine, Sacramento, California, United States
,
Sheeva Johnson
2   Department of Internal Medicine, University of California Davis School of Medicine, Sacramento, California, United States
,
Stephanie Yan
2   Department of Internal Medicine, University of California Davis School of Medicine, Sacramento, California, United States
,
Latifat Alli-Akintade
1   Division of Gastroenterology and Hepatology, University of California Davis School of Medicine, Sacramento, California, United States
,
Machelle Wilson
3   Department of Public Health Sciences, Division of Biostatistics, University of California Davis School of Medicine, Sacramento, California, United States
,
Amar Al-Juburi
1   Division of Gastroenterology and Hepatology, University of California Davis School of Medicine, Sacramento, California, United States
,
Jesse Stondell
1   Division of Gastroenterology and Hepatology, University of California Davis School of Medicine, Sacramento, California, United States
,
Sooraj Tejaswi
1   Division of Gastroenterology and Hepatology, University of California Davis School of Medicine, Sacramento, California, United States
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Publikationsverlauf

submitted 15. Dezember 2018

accepted after revision 10. April 2019

Publikationsdatum:
25. November 2019 (online)

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Einführung zu diesem Artikel:

Distal attachments on a colonoscope: not all the same?Endosc Int Open 2019; 07(12): E1592-E1594
DOI: 10.1055/a-0996-8298

Abstract

Objectives and study aim Colonoscopy prevents colorectal cancer by removing adenomatous polyps, but missed adenomas lead to interval cancers. Different devices have been used to increase adenoma detection rates (ADR). Two such devices of interest are the transparent cap (Olympus) and Endocuff (ARC Medical). Our study aimed to compare differences in ADR between Endocuff-assisted colonoscopy (EAC), cap-assisted colonoscopy (CAC) and standard colonoscopy (SC).

Patients and methods A sample size of 126 subjects was calculated to determine an effect size of 30 %. Patients undergoing screening or surveillance colonoscopy between March 2016 and January 2017 were randomized to SC, CAC or EAC groups. Three experienced endoscopists performed all colonoscopies. Patient demographics, procedure indication, Boston Bowel Prep Score (BBPS), withdrawal time, polyp size, location, histopathology, were analyzed.

Results There was no difference in ADR (52 %, 40 % and 54 %) in the SC, CAC and EAC groups respectively (P = 0.4). Similar findings were also observed for proximal ADR (45 %, 35 %, and 50 %, P = 0.4) and SSA detection rate (16 %, 14 %, and 23 %, P = 0.5). EAC detected higher mean ADR per colonoscopy compared to CAC (1.70 vs 0.76, P = 0.01). However, there was no significant difference in mean ADR per positive colonoscopy (2.08, 1.63, and 2.59, P = 0.21).

Conclusion In a randomized controlled trial comparing AC to CAC and SC, neither device conferred additional benefits in ADR among high detectors. When comparing each device, EAC may be better than CAC at detecting more total adenomas.

 

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