• Clinical Endoscopy
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• 제55권6호
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• pp.742-750
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• 2022

Background/Aims: Cold snare polypectomy (CSP) is commonly used for the resection of colorectal polyps ≤10 mm. Data regarding the influence of snare type on CSP effectiveness are conflicting. Hence, this meta-analysis aimed to compare the outcomes and safety of thin- and thick-wire snares for CSP. Methods: A comprehensive search of the literature published between 2000 and 2021 was performed of various databases for comparative studies evaluating the outcomes of thin- versus thick-wire snares for CSP. Results: Five studies with data on 1,425 polyps were included in the analysis. The thick-wire snare was comparable to the thin-wire snare with respect to complete histological resection (risk ratio [RR], 1.03; 95% confidence interval [CI], 0.97-1.09), overall bleeding (RR, 0.98; 95% CI, 0.40-2.40), polyp retrieval (RR, 1.01; 95% CI, 0.97-1.04), and involvement of submucosa in the resection specimen (RR, 1.28; 95% CI, 0.72-2.28). There was no publication bias and a small study effect, and the relative effects remained the same in the sensitivity analysis. Conclusions: CSP using a thin-wire snare has no additional benefit over thick-wire snares in small colorectal polyps. Factors other than snare design may play a role in improving CSP outcomes.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제10권1호
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• pp.86-90
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• 2007

저자들은 내원 1년 전부터 간헐적인 복통과 함께 복통 시에 항상 동반되는 소량의 비특이적인 설사가 반복되어 내원한 13세 남아에서 직장 유암종을 진단하고 내시경적 절제술로 치료한 증례를 경험하였기에 문헌고찰과 함께 보고한다.

• Clinical Endoscopy
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• 제55권1호
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• pp.15-21
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• 2022

Endoscopic submucosal dissection (ESD) is the standard treatment method for esophageal, gastric, and colorectal cancers. However, it has not been standardized for duodenal lesions because of its high complication rates. Recently, minimally invasive and simple methods such as cold snare polypectomy and underwater endoscopic mucosal resection have been utilized more for superficial nonampullary duodenal epithelial tumors (SNADETs). Although the rate of complications associated with duodenal ESD has been gradually decreasing because of technical advancements, performing ESD for all SNADETs is unnecessary. As such, the appropriate treatment plan for SNADETs should be chosen according to the lesion type, patient condition, and endoscopist's skill.

• Clinical Endoscopy
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• 제55권3호
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• pp.465-466
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• 2022

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제8권1호
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• pp.76-80
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• 2005

수술 중 전장 내시경적 용종 절제술은 내시경이 도달할 수 없는 소장에 발생한 용종의 절제에 유용하며, Peutz-Jeghers 증후군 환자에서 삶의 질을 향상시키고 합병증으로 인한 수술의 빈도를 감소시킨다. 본 저자들은 장중첩증과 장 출혈에 의한 빈혈 및 장 폐쇄가 발생한 Peutz-Jeghers 증후군 환자에서 전장 내시경술에 의한 용종 절제술을 시행한 1례를 경험하였기에 문헌고찰과 함께 보고한다.

• Clinical Endoscopy
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• 제57권4호
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• pp.501-507
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• 2024

Background/Aims: Polyps greater than 30 mm are classified as "giants". Their endoscopic removal represents a technical challenge. The choice of the endoscopic removal technique is important because it provides a resection sample for precise histopathological staging. This is pivotal for diagnostic, prognostic, and management purposes. Methods: From a retrospective analysis, we obtained a sample of 38 giant polyps. Eighteen polypectomies were performed using the epinephrine volume reduction (EVR) method, nine polypectomies utilized endo-looping or clipping methods, and 11 patients underwent surgery. Results: We obtained en bloc resection with the EVR method in all cases; histology confirmed the correct indication for endoscopic resection in all cases. Moreover, no early or delayed complications were observed, and no patient required hospitalization. Using endo-looping or clipping methods, we observed advanced histology in 1/9 (11.1%) cases, while another patient (1/9, 11.1%) had delayed bleeding. Among patients who underwent surgery, 5/11 (45.5%) were deemed overtreated and three had post-surgical complications. Conclusions: We propose EVR as an alternative technique for giant polyp resection due to its safety, effectiveness, cost-efficiency, and the advantage of avoiding the need to postpone polypectomy to a later time. Further prospective studies might help improve this experience and enhance the technique.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제26권1호
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• pp.34-42
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• 2023

Purpose: We aimed to investigate factors that correlate with fecal calprotectin (FC) levels in children and adolescents with colorectal polyps. Methods: Pediatric patients aged <19 years who underwent colonoscopic polypectomy for a juvenile polyps (JPs) and FC tests were simultaneously conducted in a multicenter, retrospective study. Baseline demographics, colonoscopic and histological findings, and laboratory tests, including FC levels, were investigated. Correlations between the factors were investigated, and linear regression analysis revealed factors that correlated with FC levels. FC levels measured after polypectomies were investigated and the FC levels pre- and post-polypectomies were compared. Results: A total of 33 patients were included in the study. According to Pearson correlation analysis, the polyp size was the only factor that showed a statistically significant correlation with FC levels (r=0.75, p<0.001). Furthermore, according to the multivariate linear regression analysis, polyp size was the only factor that showed a statistically significant correlation with FC levels (adjusted R2=0.5718, β=73.62, p<0.001). The median FC level was 400 mg/kg (interquartile range [IQR], 141.6-1,000 mg/kg), and the median polyp size was 14 mm (IQR, 9-20 mm). Nineteen patients underwent post-polypectomy FC tests. FC levels showed a significant decrease after polypectomy from a median of 445.2 mg/kg (IQR, 225-1,000) to 26.5 mg/kg (11.5-51) (p<0.001). Conclusion: FC levels significantly correlated with polyp size in children and adolescents with JPs.

• Clinical Endoscopy
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• 제55권6호
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• pp.703-725
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• 2022

Colonoscopic polypectomy is effective in decreasing the incidence and mortality of colorectal cancer (CRC). Premalignant polyps discovered during colonoscopy are associated with the risk of metachronous advanced neoplasia. Postpolypectomy surveillance is the most important method for the management of advanced metachronous neoplasia. A more efficient and evidence-based guideline for postpolypectomy surveillance is required because of limited medical resources and concerns regarding colonoscopy complications. In these consensus guidelines, an analytic approach was used to address all reliable evidence to interpret the predictors of CRC or advanced neoplasia during surveillance colonoscopy. The key recommendations state that the high-risk findings for metachronous CRC following polypectomy are as follows: (1) adenoma ≥10 mm in size; (2) 3 to 5 (or more) adenomas; (3) tubulovillous or villous adenoma; (4) adenoma containing high-grade dysplasia; (5) traditional serrated adenoma; (6) sessile serrated lesion (SSL) containing any grade of dysplasia; (7) serrated polyp of at least 10 mm in size; and (8) 3 to 5 (or more) SSLs. More studies are needed to fully comprehend the patients most likely to benefit from surveillance colonoscopy and the ideal surveillance interval to prevent metachronous CRC.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제5권1호
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• pp.96-100
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• 2002

저자들은 최근 본원에서 항문으로의 종괴 돌출 및 출혈을 주소로 내원한 7개월 여자 환아에서 직장내시경을 시행함으로써 다수의 큰 용종을 발견하였다. 내시경적 절제를 시행하여 조직병리학적으로 심재성 낭성 대장염과 연소성 정류 용종이 혼재한 것을 관찰하였고, 추적 내시경을 시행하여 남은 용종을 제거하였다. 영아에서 첫 증례이며, 내시경으로 진단 및 치료를 행함으로써 성공적으로 치료되어 이에 보고하는 바이다.

• Journal of Yeungnam Medical Science
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• 제27권2호
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• pp.150-154
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• 2010

The gastrointestinal tract(GI) is the most frequently involved site of mucosa associated lymphoid tissue(MALT) lymphoma. Stomach is the most common site of involvement among the GI tract. In some case of MALT lymphoma, it is detected in colon. Almost all diagnosis is established by pathological examination of the surgical or endoscopic specimens. We reported a case of rectal MALT lymphoma by colonoscopic polypectomy.