Histopathologic features and fragmentation of polyps with cold snare defect protrusions
Histopathologic features and fragmentation of polyps with cold snare defect protrusions
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DOI:
10.1016/j.gie.2020.07.040
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发表时间:
2021-03-16
影响因子:
7.7
通讯作者:
Katanuma, Akio
中科院分区:
文献类型:
--
作者:
Ishii, Tatsuya;Harada, Taku;Katanuma, Akio
Background and Aims: Cold snare defect protrusions (CSDPs) include muscularis mucosa (MM) and submucosa tissue. CSDPs are thought to result from fragmentation of the specimen during shallow excision. Our aim in this study was to clarify whether CSDPs are associated with polyp fragmentation.Methods: We retrospectively analyzed 1026 neoplastic colorectal polyps resected by cold snare polypectomy for which the presence or absence of CSDPs was assessed from the endoscopic image. All prepared specimens were reviewed and assessed for the presence or absence of polyp fragmentation, and the proportion of MM on the stump was measured. In addition, the risk factors for CSDP occurrence were evaluated.Results: CSDPs occurred in 116 of the 1026 polyps (11.3%). Polyp fragmentation was significantly associated with the occurrence of CSDP on univariate analysis (odds ratio [OR], 3.74; P