By Toyooki Sonoda
This e-book offers surgeons and gastroenterologists with cutting-edge recommendations when it comes to complicated colonoscopy. Chapters introduce tools of removal polyps that weren't formerly amenable to colonoscopic snare polypectomy. complicated options comparable to closure of perforations and intestinal stenting are broadly lined. The textual content continues a powerful emphasis on surgical/endoscopic approach. huge dialogue on apparatus and ability acquisition is additionally coated. As many readers won't ever have visible those complicated tactics earlier than, vast photos and movies are supplied. The authors supply information, methods, and pitfalls that would aid the reader contain those new recommendations into their practice.
Advanced Colonoscopy: Polypectomy and past can be of serious worth to any health professional or gastroenterologist presently appearing colonoscopy and drawn to complicated techniques.
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Additional resources for Advanced Colonoscopy: Principles and Techniques Beyond Simple Polypectomy
The definition of difficulty is subjective, however; what may be “difficult” for one colonoscopist may be straightforward for another. ” A polyp may be technically easy to remove, but because of its size and location, there may be a high risk of bleeding or perforation. This chapter focuses on polyps that are technically difficult to treat. There are several reasons why a polyp may be difficult to remove: 1. Size: Large polyps are usually defined as polyps >2 cm in diameter, and “giant” polyps have been defined as those >3 cm or >4 cm in diameter [5, 6].
Since their mechanical and electrical properties are different in how they cut, each knife must be used to understand the specific characteristics of a particular device. ESD devices are classified into those with noninsulated and insulated tips (Fig. 2a, b). Both knives also have a variety of merits and drawbacks. A variety of non-insulated tip-type knives exist, including the needle knife (KD1L-1; Olympus Medical Systems, Tokyo, Japan), FlexKnife (KD-630L; Olympus Medical Systems, Tokyo, Japan), DualKnife (upper length KD-650L and colonoscope length KD-650Q; Olympus Medical Systems, Tokyo, Japan), HookKnife (upper length KD-620LR and colonoscope length KD-620QR; Olympus Medical Systems, Tokyo, Japan), FlushKnife (Fujifilm Corporation), Splashneedle (PENTAX Medical, HOYA Corporation), Jet B-knife (Zeon Medical), and TriangleTipKnife (TT knife) (KD-640 L; Olympus Medical Systems, Tokyo, Japan).
Other ancillary polypectomy techniques include the use of clips and loops, injection with adrenalin to minimize bleeding, and argon plasma coagulation to treat the edges of a polypectomy wound. ”  Cold biopsy excision and cold snare are common ways of treating diminutive polyps. “Unconventional” Techniques The use of a double-channel colonoscope for dealing with difficult polyps can be described as “unconventional,” although all the suggestions on how to use a singlechannel scope apply to this as well .
Advanced Colonoscopy: Principles and Techniques Beyond Simple Polypectomy by Toyooki Sonoda