Endoscopic Measurement of Polyp Size Using a Novel Calibrated Hood

Background. Although the size of colon polyps is an important risk factor for colorectal cancer, a standardized measurement technique has yet to be determined. In clinical practice, most endoscopists estimate polyp size by uncertain visual estimation; however, colonoscopic polypectomy is indicated f...

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Main Authors: Keiichiro Kume, Tatsuyuki Watanabe, Ichiro Yoshikawa, Masaru Harada
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Gastroenterology Research and Practice
Online Access:http://dx.doi.org/10.1155/2014/714294
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author Keiichiro Kume
Tatsuyuki Watanabe
Ichiro Yoshikawa
Masaru Harada
author_facet Keiichiro Kume
Tatsuyuki Watanabe
Ichiro Yoshikawa
Masaru Harada
author_sort Keiichiro Kume
collection DOAJ
description Background. Although the size of colon polyps is an important risk factor for colorectal cancer, a standardized measurement technique has yet to be determined. In clinical practice, most endoscopists estimate polyp size by uncertain visual estimation; however, colonoscopic polypectomy is indicated for adenomatous polyps more than 5 mm in diameter. We have therefore developed a novel calibrated hood that enables accurate measurement of polyp size during colonoscopy. Method. We compared prepolypectomy estimates using the calibrated hood against measurements of preformalin-fixed samples immediately after polypectomy. Results. Sixty-five polyps removed from 44 patients were included in the present study. The mean size of polyps was significantly larger at prepolypectomy (6.06 ± 1.23 mm) than after polypectomy (5.48 ± 1.31 mm, P<0.05). Conclusion. Accurately measuring the size of polyps during colonoscopy is important, since polyps are shrunk by polypectomy. Attaching the calibrated hood appears useful in the measurement of polyp size to determine indications for polypectomy in patients with colon polyps.
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institution Kabale University
issn 1687-6121
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publishDate 2014-01-01
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series Gastroenterology Research and Practice
spelling doaj-art-66518d4a99f7451eae5c44ae611323842025-02-03T05:53:18ZengWileyGastroenterology Research and Practice1687-61211687-630X2014-01-01201410.1155/2014/714294714294Endoscopic Measurement of Polyp Size Using a Novel Calibrated HoodKeiichiro Kume0Tatsuyuki Watanabe1Ichiro Yoshikawa2Masaru Harada3Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, JapanThird Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, JapanThird Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, JapanThird Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, JapanBackground. Although the size of colon polyps is an important risk factor for colorectal cancer, a standardized measurement technique has yet to be determined. In clinical practice, most endoscopists estimate polyp size by uncertain visual estimation; however, colonoscopic polypectomy is indicated for adenomatous polyps more than 5 mm in diameter. We have therefore developed a novel calibrated hood that enables accurate measurement of polyp size during colonoscopy. Method. We compared prepolypectomy estimates using the calibrated hood against measurements of preformalin-fixed samples immediately after polypectomy. Results. Sixty-five polyps removed from 44 patients were included in the present study. The mean size of polyps was significantly larger at prepolypectomy (6.06 ± 1.23 mm) than after polypectomy (5.48 ± 1.31 mm, P<0.05). Conclusion. Accurately measuring the size of polyps during colonoscopy is important, since polyps are shrunk by polypectomy. Attaching the calibrated hood appears useful in the measurement of polyp size to determine indications for polypectomy in patients with colon polyps.http://dx.doi.org/10.1155/2014/714294
spellingShingle Keiichiro Kume
Tatsuyuki Watanabe
Ichiro Yoshikawa
Masaru Harada
Endoscopic Measurement of Polyp Size Using a Novel Calibrated Hood
Gastroenterology Research and Practice
title Endoscopic Measurement of Polyp Size Using a Novel Calibrated Hood
title_full Endoscopic Measurement of Polyp Size Using a Novel Calibrated Hood
title_fullStr Endoscopic Measurement of Polyp Size Using a Novel Calibrated Hood
title_full_unstemmed Endoscopic Measurement of Polyp Size Using a Novel Calibrated Hood
title_short Endoscopic Measurement of Polyp Size Using a Novel Calibrated Hood
title_sort endoscopic measurement of polyp size using a novel calibrated hood
url http://dx.doi.org/10.1155/2014/714294
work_keys_str_mv AT keiichirokume endoscopicmeasurementofpolypsizeusinganovelcalibratedhood
AT tatsuyukiwatanabe endoscopicmeasurementofpolypsizeusinganovelcalibratedhood
AT ichiroyoshikawa endoscopicmeasurementofpolypsizeusinganovelcalibratedhood
AT masaruharada endoscopicmeasurementofpolypsizeusinganovelcalibratedhood