Original Article
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Is Submucosal Injection Helpful in Cold Snare Polypectomy for Small Colorectal Polyps?
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Ji Hyun Song
, Shai Friedland
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Clin Endosc 2021;54(3):397-403. Published online February 9, 2021
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DOI: https://doi.org/10.5946/ce.2020.226
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Abstract
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- Background
/Aims: Cold snare polypectomy (CSP) is an effective method of polyp removal for small colorectal polyps. However, the effect of submucosal injection in cold snare endoscopic mucosal resection (CS-EMR) for small polyps is unclear. Therefore, this study aimed to evaluate the effect of submucosal injection in CS-EMR for small polyps.
Methods
Between 2018 and 2019, 100 consecutive small colorectal polyps (5–10 mm) were identified in 58 patients. The first 50 consecutive polyps were removed by CS-EMR, and the remaining 50 were removed by CSP. Demographic data, clinical data, endoscopic findings, procedure times, complication rates, and pathology data were collected.
Results
No difference in the complete resection rate was observed between the CS-EMR and CSP groups. A total of 9 polyps showed post-polypectomy bleeding (7 had immediate bleeding, 1 had delayed bleeding, and 1 had both immediate and delayed bleeding). No difference in the bleeding rate was observed between the two groups. In multivariate analysis, warfarin (odds ratio [OR], 42.334; 95% confidence interval [CI], 1.006–1,781.758) and direct-acting oral anticoagulants (OR, 35.244; 95% CI, 3.853–322.397) showed a significantly increased risk of bleeding.
Conclusions
The effect of submucosal injection in CSP was not significant for small colorectal polyps.
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Citations
Citations to this article as recorded by

- Survey of the Actual Practices Used for Endoscopic Removal of Colon Polyps in Korea: A Comparison with the Current Guidelines
Jeongseok Kim, Tae-Geun Gweon, Min Seob Kwak, Su Young Kim, Seong Jung Kim, Hyun Gun Kim, Sung Noh Hong, Eun Sun Kim, Chang Mo Moon, Dae Seong Myung, Dong-Hoon Baek, Shin Ju Oh, Hyun Jung Lee, Ji Young Lee, Yunho Jung, Jaeyoung Chun, Dong-Hoon Yang, Eun R
Gut and Liver.2025; 19(1): 77. CrossRef - Impact of contrast dye submucosal pre-lifting on cold snare resection of small polyps: an Italian randomized observational trial
Ramona Schiumerini, Paola Baccarini, Adele Fornelli, Davide Allegri, Francesca Lodato, Alessia Gazzola, Pasquale Apolito, Nunzio P. Longo, Anna M. Polifemo, Franca Patrizi, Federica Buonfiglioli, Stefania Ghersi, Marco Bassi, Liza Ceroni, Antonella Ghetti
Clinical Endoscopy.2025; 58(2): 291. CrossRef - Cold sub-mucosal injection versus traditional cold snare polypectomy for diminutive and small colorectal polyps: A systematic review and meta-analysis
Yong-Cai Lv, Quan Dong, Yan-Hua Yao, Jing-Jing Lei
Indian Journal of Gastroenterology.2024; 43(6): 1111. CrossRef - Colorectal cold snare polypectomy: Current standard technique and future perspectives
Fumiaki Ishibashi, Sho Suzuki, Mizuki Nagai, Kentaro Mochida, Tetsuo Morishita
Digestive Endoscopy.2023; 35(3): 278. CrossRef - The efficacy and safety of cold snare polypectomy with submucosal injection for the removal of polyps less than 20 mm in size: a systematic review and meta‐analysis
Zheng Liang, Yongqiu Wei, Shutian Zhang, Peng Li
Journal of Gastroenterology and Hepatology.2023; 38(11): 1892. CrossRef - Impact of Submucosal Saline Injection During Cold Snare Polypectomy for Colorectal Polyps Sized 3–9 mm: A Multicenter Randomized Controlled Trial
Yi Mou, Liansong Ye, Xiaobo Qin, Rui Feng, Lifan Zhang, Qin Hu, Tingting Cao, Xinyue Zhou, Wu Wen, Chuanming Zhang, Zonghua Chen, Yi Liu, Zhimin Yang, Tao Huo, Fang Pan, Xuelian Li, Bing Hu
American Journal of Gastroenterology.2023; 118(10): 1848. CrossRef - Cold resection for colorectal polyps: where we are and where we are going?
Antonio Capogreco, Ludovico Alfarone, Davide Massimi, Alessandro Repici
Expert Review of Gastroenterology & Hepatology.2023; 17(7): 719. CrossRef - Cold snare endoscopic mucosal resection for colon polyps: a systematic review and meta-analysis
Mohamed Abdallah, Khalid Ahmed, Daniyal Abbas, Mouhand F. H. Mohamed, Gaurav Suryawanshi, Nicholas McDonald, Natalie Wilson, Shifa Umar, Aasma Shaukat, Mohammad Bilal
Endoscopy.2023; 55(12): 1083. CrossRef - Endoscopic treatment of colorectal polyps and early colorectal cancer
Yunho Jung
Journal of the Korean Medical Association.2023; 66(11): 642. CrossRef
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Focused Review Series: Recent Update of Endoscopic Ultrasonography in Gastrointestinal Subepithelial Tumors
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Current Status of Endoscopic Ultrasonography in Gastrointestinal Subepithelial Tumors
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Sang Gyun Kim
, Ji Hyun Song
, Joo Ha Hwang
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Clin Endosc 2019;52(4):301-305. Published online July 9, 2019
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DOI: https://doi.org/10.5946/ce.2019.024
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Abstract
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- Gastrointestinal subepithelial tumors (GSTs) are usually detected incidentally on endoscopic or radiologic examinations. In conventional endoscopy, a GST usually presents as a protuberant lesion with an intact mucosal surface. As the lesion is located beneath the mucosal layer of the gastrointestinal tract, conventional biopsy typically does not reveal the pathologic diagnosis. First, a GST should be differentiated from an extrinsic compression through the positional change of the patient during conventional endoscopic examination. In cases of GSTs originating from the gastrointestinal wall, endoscopic ultrasonography (EUS) can be beneficial for narrowing the differential diagnosis through delineation of echo findings and by determining the layer of origin. EUS findings can also help determine the management strategies for GSTs by making a differential diagnosis according to malignant potential.
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Citations
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- Endoscopic Resection of Upper Gastrointestinal Subepithelial Tumours: Our Clinical Experience and Results
Mehmet Zeki Buldanlı, Oktay Yener
Prague Medical Report.2022; 123(1): 20. CrossRef - Gastric subepithelial tumor: long-term natural history and risk factors for progression
Bokyung Kim, Seungkyung Kang, Eunwoo Lee, Jinju Choi, Hyunsoo Chung, Soo-Jeong Cho, Sang Gyun Kim
Surgical Endoscopy.2022; 36(7): 5232. CrossRef - Traumatic neuroma of remnant cystic duct mimicking duodenal subepithelial tumor: A case report
Dong-Hwan Kim, Ji-Ho Park, Jin-Kyu Cho, Jung-Wook Yang, Tae-Han Kim, Sang-Ho Jeong, Young-Hye Kim, Young- Joon Lee, Soon-Chan Hong, Eun-Jung Jung, Young-Tae Ju, Chi-Young Jeong, Ju-Yeon Kim
World Journal of Clinical Cases.2020; 8(17): 3821. CrossRef
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8,214
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Case Report
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Endoscopic Submucosal Dissection Followed by Concurrent Chemoradiotherapy in Patients with Early Esophageal Cancer with a High Risk of Lymph Node Metastasis
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Hee Kyung Kim
, Weon Jin Ko
, Chang-Il Kwon
, Ga Won Song
, In Kyun Yoo
, Ji Hyun Song
, Hak Su Kim
, Joo Young Cho
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Clin Endosc 2019;52(5):502-505. Published online May 14, 2019
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DOI: https://doi.org/10.5946/ce.2018.176
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Abstract
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- Endoscopic submucosal dissection is recommended as an alternative therapy for early esophageal cancer. However, achieving curative resection in this procedure remains controversial since precise prediction of lymph node metastasis can be difficult. Here, we present the preliminary results of endoscopic submucosal dissection followed by concurrent chemoradiotherapy for early esophageal cancer with a high risk of lymph node metastasis. From May 2006 to January 2014, six patients underwent concurrent chemoradiotherapy after endoscopic submucosal dissection with a median follow-up period of 63 months. No complications were encountered during concurrent chemoradiotherapy. Although local recurrence did not occur in all patients, two patients were diagnosed with metachronous cancer. Overall, the survival rate was 100%. Thus, endoscopic submucosal dissection followed by concurrent chemoradiotherapy may be a feasible treatment for early esophageal cancer in patients with a high risk of lymph node metastasis. Future prospective large-scale studies are warranted to confirm our results.
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Citations
Citations to this article as recorded by

- Unveiling Therapeutic Targets for Esophageal Cancer: A Comprehensive Review
Rakesh Acharya, Ananya Mahapatra, Henu Kumar Verma, L. V. K. S. Bhaskar
Current Oncology.2023; 30(11): 9542. CrossRef - Editorial “Discrepancy Between the Clinical and Final Pathological Findings of Lymph Node Metastasis in Superficial Esophageal Cancer”
Rian M. Hasson, Joseph D. Phillips
Annals of Surgical Oncology.2019; 26(9): 2662. CrossRef
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7,059
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