- Comparison of long-term outcomes of colonic stenting as a “bridge to surgery” and emergency surgery in patients with left-sided malignant colonic obstruction
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Supakij Khomvilai, Sukit Pattarajierapan
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Ann Coloproctol. 2023;39(1):17-26. Published online July 29, 2021
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DOI: https://doi.org/10.3393/ac.2021.00227.0032
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Abstract
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- Purpose
Long-term oncologic outcomes of colonic stenting as a “bridge to surgery” in patients with left-sided malignant colonic obstruction (LMCO) are unclear. This study was performed to compare long-term outcomes of self-expandable metal stent (SEMS) insertion as a bridge to surgery and emergency surgery in patients with acute LMCO.
Methods This retrospective cohort study included patients with acute LMCO who underwent SEMS insertion as a bridge to surgery or emergency surgery. The primary outcomes were 5-year disease-free survival (DFS), overall survival (OS), and recurrence rate. Survival outcomes were determined using the Kaplan-Meier method and compared using log-rank tests.
Results There was a trend of worsening 5-year OS rate in the SEMS group compared with emergency surgery group (45% vs. 57%, P=0.07). In stage-wise subgroup analyses, a trend of deteriorating 5-year OS rate in the SEMS group with stage III (43% vs. 59%, P=0.06) was observed. The 5-year DFS and recurrence rate were not different between groups. The overall median follow-up time was 58 months. On multivariate analysis, age of ≥65 years and American Joint Committee on Cancer stage of ≥III, and synchronous metastasis were significant poor prognostic factors for OS (hazard ratio [HR], 1.709; 95% confidence interval [CI], 1.007–2.900; P=0.05/HR, 1.988; 95% CI, 1.038–3.809; P=0.04/HR, 2.146; 95% CI, 1.191–3.866; P=0.01; respectively).
Conclusion SEMS as a bridge to surgery may have adverse oncologic outcomes. Patients in the SEMS group had a trend of worsening 5-year OS rate without higher recurrence.
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Citations
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- Transforming outcomes: the pivotal role of self-expanding metal stents in right- and left-sided malignant colorectal obstructions-bridge to surgery: a comprehensive review and meta-analysis
Sheza Malik, Priyadarshini Loganathan, Hajra Khan, Abul Hasan Shadali, Pradeep Yarra, Saurabh Chandan, Babu P. Mohan, Douglas G. Adler, Shivangi Kothari Clinical Endoscopy.2025; 58(2): 240. CrossRef - Controversial issues of colon stenting in case of tumor obstructive intestinal obstruction: surgical and oncological aspects
S.A. Aliyev, E.S. Aliyev, T.K. Aliyev Endoscopic Surgery.2025; 31(2): 65. CrossRef - Complete Obstruction, a Real Risk Factor: A Comprehensive Study on Obstruction in Stage IIA Colon Cancer With Propensity Score Matching Analysis
Soo Young Oh, Chan Wook Kim, Seonok Kim, Min Hyun Kim, Young Il Kim, Jong Lyul Lee, Yong Sik Yoon, In Ja Park, Seok-Byung Lim, Chang Sik Yu Clinical Colorectal Cancer.2024; 23(2): 135. CrossRef - Can we use colon stenting in accelerated recovery programs for surgical treatment colon cancer complicated by obstructive intestinal obstruction? A literature review
Saday A. Aliyev, Emil S. Aliyev Russian Journal of Oncology.2024; 29(2): 130. CrossRef - Colonic stenting: is the bridge to surgery worth its cost? A cost-effectiveness analysis at a single Asian institution
Michelle Shi Qing Khoo, Frederick H. Koh, Sharmini Su Sivarajah, Leonard Ming-Li Ho, Darius Kang-Lie Aw, Cheryl Xi-Zi Chong, Fung Joon Foo, Winson Jianhong Tan Annals of Coloproctology.2024; 40(6): 555. CrossRef - Comparison of colonic stenting and stoma creation as palliative treatment for incurable malignant colonic obstruction
Sukit Pattarajierapan, Chatiyaporn Manomayangoon, Panat Tipsuwannakul, Supakij Khomvilai JGH Open.2022; 6(9): 630. CrossRef - Oncologic safety of colonic stenting as a bridge to surgery in left-sided malignant colonic obstruction: Current evidence and prospects
Sukit Pattarajierapan, Nattapanee Sukphol, Karuna Junmitsakul, Supakij Khomvilai World Journal of Clinical Oncology.2022; 13(12): 943. CrossRef
Malignant disease,Prognosis
- Recurrence after endoscopic resection of small rectal neuroendocrine tumors: a retrospective cohort study
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Sukit Pattarajierapan, Supakij Khomvilai
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Ann Coloproctol. 2022;38(3):216-222. Published online July 20, 2021
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DOI: https://doi.org/10.3393/ac.2021.00017.0002
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6,561
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2
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Abstract
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- Purpose
According to the European Neuroendocrine Tumor Society consensus guidelines, rectal neuroendocrine tumors (NETs) up to 10 mm in size and without poor prognostic factors could be safely removed with endoscopic resection, suggesting omitting surveillance colonoscopy after complete resection. However, the benefit of surveillance colonoscopy is still unknown. In this study, we aimed to report the outcomes after endoscopic resection of small rectal NETs using our surveillance protocol.
Methods This retrospective cohort study included patients who underwent endoscopic resection for rectal NETs sized up to 10 mm from January 2013 to December 2019 at our center. We excluded patients without surveillance colonoscopy and those lost to follow-up. We strictly performed surveillance colonoscopy 1 year after endoscopic resection, and every 2 to 3 years thereafter. The primary outcomes were tumor recurrence and occurrence of metachronous tumors during followup.
Results Of the 54 patients who underwent endoscopic resection for rectal NETs during the study period, 46 were enrolled in this study. The complete resection rates by endoscopic mucosal resection, precutting endoscopic mucosal resection, and endoscopic submucosal dissection were 92.3% (12 of 13), 100% (21 of 21), and 100% (12 of 12), respectively. There was no local or distant recurrence during the median follow-up of 39 months. However, we found that 8.7% (4 of 46) of patients developed metachronous NETs. All metachronous lesions were treated with precutting endoscopic mucosal resection.
Conclusion Surveillance colonoscopy is reasonable after endoscopic resection of small rectal NETs for timely detection and treatment of metachronous lesions. However, larger collaborative studies are needed to influence the guidelines.
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Citations
Citations to this article as recorded by 
- Comparison of the efficacy of endoscopic submucosal dissection and transanal endoscopic microsurgery in the treatment of rectal neuroendocrine tumors ≤ 2 cm
Rui Jin, Xiaoyin Bai, Tianming Xu, Xi Wu, Qipu Wang, Jingnan Li Frontiers in Endocrinology.2023;[Epub] CrossRef - Current status of the role of endoscopy in evaluation and management of gastrointestinal and pancreatic neuroendocrine tumors
Zaheer Nabi, Sundeep Lakhtakia, D. Nageshwar Reddy Indian Journal of Gastroenterology.2023; 42(2): 158. CrossRef
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