High-Definition Colonoscopy Compared With Cuff- and Cap-Assisted Colonoscopy: Results From a Multicenter, Prospective, Randomized Controlled Trial

Madhav Desai, Douglas K. Rex, Matthew E. Bohm, Perica Davitkov, John M. DeWitt, Monika Fischer, Gregory Faulx, Ryan Heath, Timothy D. Imler, Toyia N. James-Stevenson, Charles J. Kahi, William R. Kessler, Divyanshoo R. Kohli, Lee McHenry, Tarun Rai, Nicholas A. Rogers, Sashidhar V. Sagi, Anjana Sathyamurthy, Prashanth Vennalaganti, Suneha SundaramHarsh Patel, April Higbee, Kevin Kennedy, Rachel Lahr, Gjorgie Stojadinovikj, Chandra Dasari, Sravanthi Parasa, Ashley Faulx, Prateek Sharma

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Background and Aims: Mucosal exposure devices including distal attachments such as the cuff and cap have shown variable results in improving adenoma detection rate (ADR) compared with high-definition white light colonoscopy (HDWLE). Methods: We performed a prospective, multicenter randomized controlled trial in patients undergoing screening or surveillance colonoscopy comparing HDWLE to 2 different types of distal attachments: cuff (CF) (Endocuff Vision) or cap (CP) (Reveal). The primary outcome was ADR. Secondary outcomes included adenomas per colonoscopy, advanced adenoma and sessile serrated lesion detection rate, right-sided ADR, withdrawal time, and adverse events. Continuous variables were compared using Student's t test and categorical variables were compared using chi-square or Fisher's exact test using statistical software Stata version16. A P value <.05 was considered significant. Results: A total of 1203 subjects were randomized to either HDWLE (n = 384; mean 62 years of age; 81.3% males), CF (n = 379; mean 62.7 years of age; 79.9% males) or CP (n = 379; mean age 62.1 years of age; 80.5% males). No significant differences were found among 3 groups for ADR (57.3%, 59.1%, and 55.7%; P = .6), adenomas per colonoscopy (1.4 ± 1.9, 1.6 ± 2.4, and 1.4 ± 2; P = .3), advanced adenoma (7.6%, 9.2%, and 8.2%; P = .7), sessile serrated lesion (6.8%, 6.3%, and 5.5%; P = .8), or right ADR (48.2%, 49.3%, and 46.2%; P = .7). The number of polyps per colonoscopy were significantly higher in the CF group compared with HDWLE and CP group (2.7 ± 3.4, 2.3 ± 2.5, and 2.2 ± 2.3; P = .013). In a multivariable model, after adjusting for age, sex, body mass index, withdrawal time, and Boston Bowel Preparation Scale score, there was no impact of device type on the primary outcome of ADR (P = .77). In screening patients, CF resulted in more neoplasms per colonoscopy (CF: 1.7 ± 2.6, HDWLE: 1.3 ± 1.7, and CP: 1.2 ± 1.8; P = .047) with a shorter withdrawal time. Conclusions: Results from this multicenter randomized controlled trial do not show any significant benefit of using either distal attachment devices (CF or CP) over HDWLE, at least in high-detector endoscopists. The Endocuff may have an advantage in the screening population. (ClinicalTrials.gov, Number: NCT03952611).

Original languageEnglish (US)
Pages (from-to)2023-2031.e6
JournalClinical Gastroenterology and Hepatology
Volume20
Issue number9
DOIs
StatePublished - Sep 2022
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2022 AGA Institute

Keywords

  • Adenoma
  • Colonoscopy
  • Colorectal Cancer

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