Systematic Review and Meta-analysis
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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
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Sheza Malik, Priyadarshini Loganathan, Hajra Khan, Abul Hasan Shadali, Pradeep Yarra, Saurabh Chandan, Babu P. Mohan, Douglas G. Adler, Shivangi Kothari
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Clin Endosc 2025;58(2):240-252. Published online February 3, 2025
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DOI: https://doi.org/10.5946/ce.2024.120
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Graphical Abstract
Abstract
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- Background
/Aims: Self-expanding metallic stents (SEMS) are an alternative to emergency surgery (ES) for malignant colorectal obstruction. This study aimed to compare surgical outcomes between SEMS as a bridge to surgery (BTS) and ES in patients with malignant colorectal obstruction.
Methods
A comprehensive database search was conducted until October 2023 to compare outcomes between SEMS as a BTS and ES. A subgroup analysis of results by malignancy site was performed.
Results
We analyzed 57 studies, including 7,223 patients over a mean duration of 35.4 months. SEMS as a BTS showed clinical and technical success rates of 88.0% (95% confidence interval [CI], 86.1%–90.1%; I2=68%) and 91.6% (95% CI, 89.7%–93.7%; I2=66%), respectively. SEMS as a BTS revealed reduced postoperative adverse events (odds ratio [OR], 0.51; 95% CI, 0.41–0.63; I2=70%; p<0.001) and 30-day mortality (OR, 0.52; 95% CI, 0.37–0.72; I2=10%; p<0.001) compared to ES. Subgroup analysis showed postoperative mortality of 5% and 1.5% for left- and right-sided malignancies, respectively. Adverse events were 15% and 33% for the right and left colon, respectively.
Conclusions
SEMS as a BTS demonstrated a higher success rate, fewer postoperative adverse events, and a reduced 30-day mortality rate than ES, supporting its use as the preferred initial intervention for right- and left-sided obstructions and indicating broader clinical adoption.
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- Successful Colonic Stenting Across the Ileocecal Valve With Severe Malignant Stenosis Using Ultra‐thin Scope and Single‐balloon Overtube
Takato Maeda, Norihiro Hanabata, Shohei Igarashi, Masayoshi Ko, Koji Shimaya, Hiroshi Numao, Masaki Munakata, Hirotake Sakuraba
DEN Open.2026;[Epub] CrossRef - Nationwide Analysis of Right-Sided Colonic Stenting: Rarely Used but Reduces Stoma Creation Significantly
Khalid Ahmed, Ahmed Dirweesh, Zachary D. Leslie, Yasmin Ali, Nabeel Azeem, Eric Wise, Cyrus Jahansouz, Martin Freeman, Stuart K. Amateau
Techniques and Innovations in Gastrointestinal Endoscopy.2026; 28(1): 250952. CrossRef - Minimally invasive, maximum impact: advances in the application of colonic stents
Filippos Koutroumpakis, Emmanuel Coronel
Current Opinion in Gastroenterology.2026; 42(1): 19. CrossRef - Causes of stenting complications for malignant colorectal stenosis in patients with acute obstructive colonic obstruction
Khosiyat T. Solijonova, I. A. Semenenko, A. E. Voynovskiy, P. A. Barbado Mamedova, O. V. Kanadashvili, G. V. Sinyavin, A. R. Iskandarova
Surgery and Oncology.2026; 16(1): 86. CrossRef - Embracing minimally invasive approaches to colorectal cancer resection
Nan Zun Teo, James Weiquan Li, James Chi Yung Ngu, Tiing Leong Ang
Singapore Medical Journal.2025; 66(Suppl 1): S38. CrossRef
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Original Article
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Efficacy and Safety of Endoscopic Submucosal Dissection for Superficial Gastric Neoplasms: A Latin American Cohort Study
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Fernando Palacios-Salas, Harold Benites-Goñi, Luis Marin-Calderón, Paulo Bardalez-Cruz, Jorge Vásquez-Quiroga, Edgar Alva-Alva, Bryan Medina-Morales, Jairo Asencios-Cusihuallpa
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Clin Endosc 2022;55(2):248-255. Published online November 12, 2021
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DOI: https://doi.org/10.5946/ce.2021.192
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- Background
/Aims: Endoscopic submucosal dissection (ESD) is the preferred technique for treating early gastric cancer (EGC). However, very few studies have been conducted in South America. This study aimed to assess the efficacy and safety of ESD for EGC.
Methods
We analyzed data from a prospective cohort from 2013 to 2020. A total of 152 superficial gastric neoplasms that fulfilled the absolute or expanded criteria for ESD were included. Outcomes were en bloc, R0, and curative resection rates, incidence of adverse events, and length of procedure.
Results
The age of the enrolled patients was 68.4±11.3 years. The number of included patients based on the absolute and expanded indications was 150 and 2, respectively. En bloc, R0, and curative resections were achieved in 98.0%, 96.1%, and 89.5% of the cases, respectively. Bleeding and perforation were reported in 5.9% and 6.6% of the cases, respectively. Histopathological examination revealed lowgrade dysplasia, high-grade dysplasia, well-differentiated adenocarcinoma, and poorly differentiated adenocarcinoma in 13, 20, 117, and 2 cases, respectively.
Conclusions
Our study shows that ESD performed by properly trained endoscopists in reference centers is safe and effective, with comparable therapeutic outcomes to those reported in the Eastern series.
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Citations
Citations to this article as recorded by

- Chilean Association of Digestive Endoscopy (ACHED) guidelines for the detection of early gastric cancer and surveillance of gastric premalignant conditions in high-risk populations
Gonzalo Latorre, Alberto Espino, Raúl Araya, Matías Arteaga, Harold Benites-Goñi, María Ester Bufadel, Dacio Cabrera-Hinojosa, Roberto Candia, Julian Cordero, Oscar Corsi, Pablo Cortés, Felipe Donoso, Fabian Emura, Carolina Heredia, Daniel Martínez, Rodri
Gastroenterología y Hepatología.2026; 49(3): 502633. CrossRef - Chilean Association of Digestive Endoscopy (ACHED) guidelines for the detection of early gastric cancer and surveillance of gastric premalignant conditions in high-risk populations
Gonzalo Latorre, Alberto Espino, Raúl Araya, Matías Arteaga, Harold Benites-Goñi, María Ester Bufadel, Dacio Cabrera-Hinojosa, Roberto Candia, Julian Cordero, Oscar Corsi, Pablo Cortés, Felipe Donoso, Fabian Emura, Carolina Heredia, Daniel Martínez, Rodri
Gastroenterología y Hepatología (English Edition).2026; 49(3): 502633. CrossRef - Outcomes and validity of risk stratification tools for endoscopic submucosal dissection of early gastric cancer in Western Australia
Ciaran Judge, Abir Halder, Puraskar Pateria, Tzeng Khor, Niroshan Muwanwella, Marcus Chin, Krish Ragunath
JGH Open.2024;[Epub] CrossRef - Disección submucosa endoscópica en cáncer gástrico temprano indiferenciado: evaluación de los primeros casos y análisis de su aplicación como indicación absoluta en Perú
Fernando Palacios-Salas, Luis Marin-Calderón, Juan Chirinos-Vega, Paulo Bardalez-Cruz, Patricia Valera-Luján, Dacio Cabrera-Hinojosa, Harold Benites-Goñi
Revista de Gastroenterología del Perú.2024; 44(4): 333. CrossRef - Short-Term and Long-Term Outcomes of Liver Cirrhosis in Gastric Neoplasm Patients Undergoing Endoscopic Submucosal Dissection
Xu-Rui Liu, Lian-Shuo Li, Fei Liu, Zi-Wei Li, Xiao-Yu Liu, Wei Zhang, Dong Peng
Journal of Laparoendoscopic & Advanced Surgical Techniques.2023; 33(7): 640. CrossRef - Endoscopic submucosal dissection for early gastric cancer: It is time to consider the quality of its outcomes
Gwang Ha Kim
World Journal of Gastroenterology.2023; 29(43): 5800. CrossRef - Endoscopic diagnosis of early gastric cancer
Dong Chan Joo, Gwang Ha Kim
Journal of the Korean Medical Association.2022; 65(5): 267. CrossRef - Therapeutic approach to non-curative resection after endoscopic treatment in early gastric cancer
Eun Jeong Gong, Chang Seok Bang
Journal of the Korean Medical Association.2022; 65(5): 284. CrossRef
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Focused Review Series: Expanding the Indication with Safety Issue of Endoscopic Ultrasound
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Future Perspectives on Endoscopic Ultrasonography-Guided Therapy for Pancreatic Neoplasm
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Woo Hyun Paik, Sang Hyub Lee, Sunguk Jang
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Clin Endosc 2018;51(3):229-234. Published online May 18, 2018
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DOI: https://doi.org/10.5946/ce.2018.063
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Abstract
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- Endoscopic ultrasonography (EUS)-guided therapy with ethanol injection or catheter-based radiofrequency ablation for pancreatic neoplasm has been conducted as a potential alternate treatment modality for patients who are not eligible for surgery. On the basis of the limited number of studies available, EUS-guided ablation therapy with the aforementioned methods for small pancreatic neoplasms has demonstrated promising technical feasibility and safety profiles. To be considered as a legitimate alternative option to surgery, however, EUS-guided ablation therapy must provide a long-term efficacy profile along with the consensus among experts regarding its treatment parameter. This review focuses on the clinical issues and future perspectives of EUS-guided therapy for pancreatic neoplasm.
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Citations
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- An updated review on ablative treatment of pancreatic cystic lesions
Andrew Canakis, Ryan Law, Todd Baron
Gastrointestinal Endoscopy.2020; 91(3): 520. CrossRef - Endosonography-guided Radiofrequency Ablation in Pancreatic Diseases
Giuseppe Vanella, Gabriele Capurso, Paolo G. Arcidiacono
Journal of Clinical Gastroenterology.2020; 54(7): 591. CrossRef
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8,143
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Original Article
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Clinical Outcomes of Endoscopic Submucosal Dissection for Superficial Esophageal Squamous Neoplasms
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Jung Soo Park, Young Hoon Youn, Jae Jun Park, Jie-Hyun Kim, Hyojin Park
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Clin Endosc 2016;49(2):168-175. Published online February 12, 2016
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DOI: https://doi.org/10.5946/ce.2015.080
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Abstract
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- Background
/Aims: Endoscopic treatment has been broadly applied to superficial esophageal neoplasms. Endoscopic submucosal dissection (ESD) allows for high rates of en bloc resection, precise histological assessment, and low rates of local recurrence. The aim of this study was to evaluate the outcomes of ESD for superficial esophageal neoplasms.
Methods
We retrospectively reviewed 36 esophageal ESDs for superficial squamous neoplasms in 32 patients between March 2009 and August 2014 at Gangnam Severance Hospital.
Results
The median patient age was 64 years, and 30 men were included. The indications were early squamous cell carcinoma in 26 lesions, adenoma with high-grade dysplasia in five lesions, and low-grade dysplasia in five lesions. The en bloc resection and R0 resection rates were 97.2% (35 of 36) and 91.7% (33 of 36), respectively. Microperforation and post-ESD bleeding occurred in 5.6% (2 of 36) and 5.6% (2 of 36), respectively. Post-ESD esophageal strictures developed in five patients (13.9%). Five patients (15.6%) had an additional treatment after ESD (concurrent chemoradiation therapy in three, radiation therapy in one, and surgery in one patient). There was no disease-specific mortality during the median follow-up of 31 months.
Conclusions
Favorable clinical outcomes were observed in ESD for superficial esophageal squamous neoplasms. Esophageal ESD could be a good treatment option in terms of efficacy and safety.
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