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Gastroenterology Research and Practice
Volume 2011, Article ID 671659, 5 pages
Clinical Study

Novel Jumbo Biopsy Forceps for Surveillance of Inflammatory Bowel Disease: A Comparative Retrospective Assessment

1Division of Gastroenterology, Department of Medicine, University of Washington, Seattle, WA 98109, USA
2Department of Pathology, University of Washington, Seattle, WA 98109, USA

Received 7 January 2011; Revised 1 August 2011; Accepted 3 August 2011

Academic Editor: Hejin Hahn

Copyright © 2011 Kenneth Song et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Background and Study Aims. Most available jumbo cup forceps require a 3.7 mm biopsy channel, necessitating the use of standard-sized colonoscope. A newer jumbo forceps (Radial Jaw 4 Jumbo Biopsy Forceps [RJ4]) fits within a 3.2 mm biopsy channel, allowing use with a pediatric colonoscope. To assure the RJ4 did not alter biopsy adequacy, we compared the size and quality of specimens to a historical jumbo cup forceps (Radial Jaw 3 Max Capacity Biopsy Forceps, [RJ3 MC]). Patients and Methods. A retrospective comparative study of biopsies taken with either forceps. Biopsies were compared for diameter, depth, crush artifact, and acceptability for diagnosis. Results. 333 specimens were taken with RJ4 and 335 specimens with the RJ3 MC. Mean sample diameter was 4.45 mm and 4.55 mm for the RJ4 and RJ3 MC ( 𝑃 = 0 . 4 1 ). Mean depth of biopsies with the RJ4 was greater ( 𝑃 < 0 . 0 1 ). Conclusions. Biopsies from the RJ4 are similar in size and quality to biopsies from the RJ3 MC. The RJ4 has the advantage of fitting in a smaller biopsy channel.