Risk Factors of Delayed Bleeding After Cold Snare Polypectomy for Colorectal Polyps: A Multicenter Study

2021 ◽  
Author(s):  
Yoshikazu Inagaki ◽  
Naohisa Yoshida ◽  
Kohei Fukumoto ◽  
Kyoichi Kassai ◽  
Ken Inoue ◽  
...  
Keyword(s):  
Risk Factors ◽  
Multicenter Study ◽  
Colorectal Polyps ◽  
Delayed Bleeding ◽  
Cold Snare Polypectomy ◽  
Snare Polypectomy

Local recurrence and its risk factors after cold snare polypectomy of colorectal polyps

2019 ◽  
Vol 34 (7) ◽  
pp. 2918-2925 ◽  
Author(s):  
Takaaki Murakami ◽  
Naohisa Yoshida ◽  
Ritsu Yasuda ◽  
Ryohei Hirose ◽  
Ken Inoue ◽  
...  
Keyword(s):  
Risk Factors ◽  
Local Recurrence ◽  
Colorectal Polyps ◽  
Cold Snare Polypectomy ◽  
Snare Polypectomy

scholarly journals Extended cold snare polypectomy for small colorectal polyps increases the R0 resection rate

2018 ◽  
Vol 06 (02) ◽  
pp. E254-E258 ◽  
Author(s):  
Yasuhiro Abe ◽  
Haruaki Nabeta ◽  
Ryota Koyanagi ◽  
Taro Nakamichi ◽  
Hayato Hirashima ◽  
...  
Keyword(s):  
Confidence Interval ◽  
Colorectal Polyps ◽  
R0 Resection ◽  
Low Grade ◽  
Resection Rate ◽  
Delayed Bleeding ◽  
Mean Size ◽  
Cold Snare Polypectomy ◽  
Baseline Characteristics ◽  
Snare Polypectomy

Abstract Background and study aims Despite widespread use of cold snare polypectomy (CSP), the R0 resection rate is not well documented. We perform extended CSP, resecting polyps with a > 1 mm circumferential margin. The aim of this study is to compare the R0 resection rate of extended CSP with conventional CSP and to assess safety. Patients and methods From April 2014 to September 2016, 712 non-pedunculated colorectal polyps, < 10 mm in size, resected using CSP from 316 patients were retrospectively analyzed. Results We divided lesions into conventional CSP (n = 263) and extended CSP groups (n = 449). The baseline characteristics of these two groups were not significantly different in univariate or multivariate analyses. Sessile polyps comprised 94 % (668/712), and the remaining were flat-elevated polyps. Mean size of polyps (±standard deviation) was 4.2 ± 1.5 mm. The most frequent pathology was low grade adenoma (97 %, 689/712). The R0 resection rate was significantly higher in the extended CSP group (439/449 [98 %]) than in the conventional CSP group (222/263 [84 %], P < 0.001). There was no delayed bleeding or perforation in either group (conventional CSP group, 0/263, 95 % confidence interval: 0.0 – 1.4 % and extended CSP group, 0/449, 95 % confidence interval: 0.0 – 0.8 %). Conclusions Extended CSP results in a higher R0 resection rate compared with conventional CSP. Extended CSP did not result in a higher rate of delayed bleeding or perforation. Extended CSP is a safe and promising procedure for endoscopic resection of non-pedunculated colorectal polyps < 10 mm in size

Factors Associated with possibly Inappropriate Histological Evaluation of Excised Specimens in Cold-snare Polypectomy for Small Colorectal Polyps

2018 ◽  
Vol 27 (1) ◽  
pp. 25-30 ◽  
Author(s):  
Yuichi Shimodate ◽  
Junya Itakura ◽  
Motowo Mizuno ◽  
Rio Takezawa ◽  
Mami Kobayashi ◽  
...  
Keyword(s):  
Risk Factors ◽  
Colorectal Polyps ◽  
Histological Evaluation ◽  
Incomplete Resection ◽  
Muscularis Mucosae ◽  
Mean Size ◽  
Cold Snare Polypectomy ◽  
Independent Risk Factors ◽  
Negative Tumor ◽  
Snare Polypectomy

Background & Aims: Small colorectal polyps may be removed with cold snare polypectomy (CSP). Some of these polyps may contain unexpectedly advanced neoplasia. Thus, it is important to establish criteria for excision that will ensure that the CSP specimens are adequate for accurate histological assessment. We retrospectively investigated depth of excised small polyps and their vertical margins in patients who underwent CSP.Method: CSP-excised specimens of 376 small colorectal polyps were examined. We histologically evaluated negative tumor vertical margins and complete resection through the muscularis mucosae, which was defined as muscularis mucosae present under the tumor along more than 80% of its horizontal axis. We also evaluated the fragmentation of the retrieved specimens.Results: The mean size of the 376 polyps was 4.9 ±1.4 mm, and 25 polyps (6.6%) had unexpectedly advanced histology. Thirty-two lesions (8.5%) were fragmented. In 275 (79.9%) of the remaining 344 unfragmented polyps, muscularis mucosae resection was judged complete. Vertical margins were confirmed negative in 99.6% (274/275) of polyps that had complete muscularis mucosae resection, but in only 33.3% (23/69) of polyps with incomplete resection. In 79 polyps (21%) (32 fragmented specimens and 47 unfragmented specimens), including 5 polyps with advanced histology, negative vertical margins could not be confirmed. Sessile morphology and location in the cecum were independent risk factors for incomplete muscularis mucosae resection and fragmentation.Conclusion: Incomplete muscularis mucosae resection and fragmentation at retrieval are risk factors for inadequate histological evaluation of CSP-excised small colorectal polyps, especially for sessile polyps and polyps in the cecum.

Su1752 LOCAL RECURRENCE AND ITS RISK FACTORS AFTER COLD SNARE POLYPECTOMY OF COLORECTAL POLYPS

2019 ◽  
Vol 89 (6) ◽  
pp. AB408-AB409
Author(s):  
Naohisa Yoshida ◽  
Ken Inoue ◽  
Ritsu Yasuda ◽  
Ryohei Hirose ◽  
Osamu Dohi ◽  
...  
Keyword(s):  
Risk Factors ◽  
Local Recurrence ◽  
Colorectal Polyps ◽  
Cold Snare Polypectomy ◽  
Snare Polypectomy

scholarly journals Pedunculated colorectal polyps with heads ≤ 1 cm in diameter can be resected using cold snare polypectomy

2021 ◽  
Vol 84 (3) ◽  
Author(s):  
T Kudo ◽  
A Horiuchi ◽  
I Horiuchi ◽  
M Kajiyama ◽  
A Morita ◽  
...  
Keyword(s):  
En Bloc Resection ◽  
Bloc Resection ◽  
Colorectal Polyps ◽  
En Bloc ◽  
Delayed Bleeding ◽  
Total Procedure Time ◽  
Cold Snare Polypectomy ◽  
Immediate Bleeding ◽  
Total Procedure ◽  
Snare Polypectomy

Background and study aims : Cold snare polypectomy (CSP) is not recommended for the resection of pedunculated colorectal polyp. The aim of this study was to examine the adequacy of CSP compared to hot snare polypectomy (HSP) for the complete resection of pedunculated polyps with heads ≤ 1 cm in diameter. Patients and methods : This was a retrospective study of a cohort of consecutive outpatients who had resection of pedunculated polyps with heads 6-10 mm in diameter using either dedicated CSP or HSP from 2014 through 2019. The primary outcome measure was occurrence of delayed bleeding. Secondary outcome measures included total procedure time, en bloc resection rate, immediate bleeding, and number of clips used. Results : 415 patients with 444 eligible polyps were enrolled; the CSP group (363 patients; 386 polyps) and HSP group (52 patients; 58 polyps). Patient characteristics, polyp characteristics and en bloc resection rate were similar between groups. The mean total procedure time and mean number (range) of hemostatic clips/patient used were significantly lower with CSP than with HSP (18± 8 min vs. 25± 9 min, P<0.001; 1.1 ± 0.6 (1-3) vs.3.1 ± 1.6 (1-5), respectively, P<0.001). Delayed bleeding occurred significantly less frequently in the CSP, 0% (0/363 vs.3.8% (2/52) in the HSP group (P<0.001), although immediate bleeding was significantly higher in CSP than HSP (84% (325/386) vs. 12% (7/58), P<0.001). Conclusion : Pedunculated colorectal polyps with heads ≤ 1 cm can be removed using CSP, which has several advantages over HSP.

Delayed Bleeding Following Cold Snare Polypectomy for Small Colorectal Polyps in Patients Taking Antithrombotic Agents

2018 ◽  
Vol 52 (6) ◽  
pp. 502-507 ◽  
Author(s):  
Toshiyuki Makino ◽  
Akira Horiuchi ◽  
Masashi Kajiyama ◽  
Naoki Tanaka ◽  
Kenji Sano ◽  
...  
Keyword(s):  
Colorectal Polyps ◽  
Antithrombotic Agents ◽  
Delayed Bleeding ◽  
Cold Snare Polypectomy ◽  
Snare Polypectomy

ID: 3526203 EFFICACY AND SAFETY OF COLD SNARE POLYPECTOMY (CSP) OF INTERMEDIATE SIZED COLORECTAL POLYPS 10 - 15 MM- A PROSPECTIVE OBSERVATIONAL FEASIBILITY TRIAL (COLDSNAP-1)

2021 ◽  
Vol 93 (6) ◽  
pp. AB74
Author(s):  
Paul Rechberger ◽  
Jörg D. Ulrich ◽  
Mohamed Abdelhafez ◽  
Guido von Figura ◽  
Jeannine Bachmann ◽  
...  
Keyword(s):  
Colorectal Polyps ◽  
Feasibility Trial ◽  
Efficacy And Safety ◽  
Cold Snare Polypectomy ◽  
Snare Polypectomy
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