Brief Article
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World J Gastroenterol. Sep 21, 2011; 17(35): 4001-4006
Published online Sep 21, 2011. doi: 10.3748/wjg.v17.i35.4001
Role of high definition colonoscopy in colorectal adenomatous polyp detection
Tolga Erim, John M Rivas, Evelio Velis, Fernando Castro
Tolga Erim, Department of Gastroenterology, Cleveland Clinic Florida, Weston, FL 33331, United States
John M Rivas, Department of Internal Medicine, Cleveland Clinic Florida, Weston, FL 33331, United States
Evelio Velis, Health Services Administration Master Program, Barry University, Miami Shores, Florida 33161, United States
Fernando Castro, Department of Gastroenterology, Cleveland Clinic Florida, Weston, FL 33331, United States
Author contributions: Erim T, Rivas JM and Castro F contributed equally to this work; Erim T and Castro F designed the research; Erim T and Rivas J performed the research; Velis E contributed new reagents/analytic tools; Erim T, Rivas J, Velis E and Castro F analyzed the data; Erim T, Rivas JM and Castro F wrote the paper.
Supported by Cleveland Clinic Florida Institution Review Committee
Correspondence to: Dr. Tolga Erim, Department of Gastroenterology, Cleveland Clinic Florida, 2950 Cleveland Clinic Blvd, Weston, FL 33331, United States. erimt@ccf.org
Telephone: +1-954-6595000 Fax: +1-954-6595480
Received: December 17, 2010
Revised: March 11, 2011
Accepted: March 18, 2011
Published online: September 21, 2011
Abstract

AIM: To investigate the rates of polyp detection in a mixed risk population using standard definition (SDC) vs high definition colonoscopes (HDC).

METHODS: This was a retrospective cohort comparative study of 3 colonoscopists who each consecutively performed 150 SDC (307, 200 pixel) and 150 HDC (792, 576 pixels) in a community teaching hospital.

RESULTS: A total of 900 colonoscopies were evaluated (mean age 56, 46.8% men), 450 with each resolution. Polyps of any type were detected in 46.0% of patients using SDC and 43.3% with HDC (P = 0.42). There was no significant difference between the overall number of polyps, HDC (397) and SDC (410), detected among all patients examined, (P = 0.73). One or more adenomatous polyps were detected in 24.2% of patients with HDC and 24.9% of patients with SDC colonoscopy (P = 0.82). There was no significant difference between HDC (M = 0.41) and SDC (M = 0.42) regarding adenomatous polyp (P = 0.88) or advanced adenoma (P = 0.56) detection rate among all patients examined.

CONCLUSION: HDC did not improve yield of adenomatous polyp, advanced adenoma or overall polyp detection in a population of individuals with mixed risk for colorectal cancer.

Keywords: High definition colonoscopy; Colon cancer screening; Adenomatous polyps