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Li CY, Wang YF, Luo LK, Yang XJ. Present situation of minimally invasive surgical treatment for early gastric cancer. World J Gastrointest Oncol 2024; 16:1154-1165. [PMID: 38660633 PMCID: PMC11037069 DOI: 10.4251/wjgo.v16.i4.1154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 12/05/2023] [Accepted: 02/02/2024] [Indexed: 04/10/2024] Open
Abstract
Minimally invasive surgery is a kind of surgical operation, which is performed by using professional surgical instruments and equipment to inactivate, resect, repair or reconstruct the pathological changes, deformities and wounds in human body through micro-trauma or micro-approach, in order to achieve the goal of treatment, its surgical effect is equivalent to the traditional open surgery, while avoiding the morbidity of conventional surgical wounds. In addition, it also has the advantages of less trauma, less blood loss during operation, less psychological burden and quick recovery on patients, and these minimally invasive techniques provide unique value for the examination and treatment of gastric cancer patients. Surgical minimally invasive surgical techniques have developed rapidly and offer numerous options for the treatment of early gastric cancer (EGC): endoscopic mucosal resection (EMR), underwater EMR (UEMR), endoscopic submucosal dissection (ESD), endoscopic full-thickness resection (EFTR), endoscopic submucosal excavation (ESE), submucosal tunnel endoscopic resection), laparoscopic and endoscopic cooperative surgery (LECS); Among them, EMR, EFTR and LECS technologies have a wide range of applications and different modifications have been derived from their respective surgical operations, such as band-assisted EMR (BA-EMR), conventional EMR (CEMR), over-the-scope clip-assisted EFTR, no-touch EFTR, the inverted LECS, closed LECS, and so on. These new and improved minimally invasive surgeries are more precise, specific and effective in treating different types of EGC.
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Affiliation(s)
- Chun-Yan Li
- The First Clinical Medical School, Lanzhou University, Lanzhou 730000, Gansu Province, China
| | - Yi-Feng Wang
- The First Clinical Medicine College, Gansu University of Chinese Medicine, Lanzhou 730000, Gansu Province, China
| | - Li-Kang Luo
- The First Clinical Medicine College, Gansu University of Chinese Medicine, Lanzhou 730000, Gansu Province, China
| | - Xiao-Jun Yang
- The First Clinical Medical School, Lanzhou University, Lanzhou 730000, Gansu Province, China
- General Surgery Clinical Centre, Gansu Provincial Hospital, Lanzhou 730000, Gansu Province, China
- The Second Department of General Surgery, Gansu Provincial Hospital, Lanzhou 730000, Gansu Province, China
- Lanzhou University People's Clinical Hospital, Lanzhou 730000, Gansu Province, China
- Gansu Research Center of Prevention and Control Project for Digestive Oncology, Gansu Provincial Hospital, Lanzhou 730000, Gansu Province, China
- Gansu Key Laboratory of Molecular Diagnostics and Precision Medicine for Surgical Oncology, Gansu Provincial Hospital, Lanzhou 730000, Gansu Province, China
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Cavalcoli F, Gallo C, Coltro LA, Rausa E, Cantù P, Invernizzi P, Massironi S. Therapeutic Challenges for Gastric Neuroendocrine Neoplasms: Take It or Leave It? MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1757. [PMID: 37893475 PMCID: PMC10608689 DOI: 10.3390/medicina59101757] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 09/23/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023]
Abstract
Background and Objectives: Gastric neuroendocrine neoplasms (gNENs) represent rare but increasingly recognized tumors. They are distinguished into three main clinical types (type-1, type-2, and type-3) according to gastrin level and at histological evaluation in well-differentiated G1, G2, or G3 lesions, as well as poorly-differentiated lesions. Small type-1 and type-2 neoplasms with low proliferation indices demonstrated excellent survival without progression during an extended follow-up period, and for these reasons, active endoscopic observation or endoscopic resection are feasible options. On the other hand, surgery is the treatment of choice for more aggressive type-3, G3, or infiltrating neoplasms. The present study aims to comprehensively review and compare the available therapeutic strategies for gNENs. Materials and Methods: A computerized literature search was performed using relevant keywords to identify all of the pertinent articles with particular attention to gNEN endoscopic treatment. Results: In recent years, different endoscopic resective techniques (such as endoscopic mucosal dissection, modified endoscopic mucosal resection, and endoscopic full-thickness resection) have been developed, showing a high rate of complete resection for advanced and more aggressive lesions. Conclusions: Overall, gNENs represent a heterogeneous group of lesions with varying behavior which require personalized management. The non-operative approach for small type-1 gNENs seems to be feasible and should be promoted. A step-up approach with minimally invasive endoscopic therapies might be proposed, particularly for type-1 gNEN. On the other hand, it is important to recognize the negative prognostic factors in order to identify those rare cases requiring more aggressive approaches. A possible therapeutic algorithm for localized gNEN management is provided.
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Affiliation(s)
- Federica Cavalcoli
- Gastroenterology and Digestive Endoscopy Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy; (F.C.); (P.C.)
| | - Camilla Gallo
- Division of Gastroenterology, Fondazione IRCCS San Gerardo dei Tintori, University of Milano-Bicocca School of Medicine, 20900 Monza, Italy; (C.G.)
| | - Lorenzo Andrea Coltro
- Division of Gastroenterology, Fondazione IRCCS San Gerardo dei Tintori, University of Milano-Bicocca School of Medicine, 20900 Monza, Italy; (C.G.)
| | - Emanuele Rausa
- Unit of Hereditary Digestive Tract Tumours, Department of Surgery, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy;
| | - Paolo Cantù
- Gastroenterology and Digestive Endoscopy Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy; (F.C.); (P.C.)
| | - Pietro Invernizzi
- Division of Gastroenterology, Fondazione IRCCS San Gerardo dei Tintori, University of Milano-Bicocca School of Medicine, 20900 Monza, Italy; (C.G.)
| | - Sara Massironi
- Division of Gastroenterology, Fondazione IRCCS San Gerardo dei Tintori, University of Milano-Bicocca School of Medicine, 20900 Monza, Italy; (C.G.)
- Division of Gastroenterology, Center for Autoimmune Liver Diseases, Department of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy
- European Reference Network on Hepatological Diseases (ERN RARE-LIVER), San Gerardo Hospital, ASST Monza, 20900 Monza, Italy
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Meng R, Ni M, Ren W, Zhou T, Zhang X, Yan P, Ding X, Xu G, Lv Y, Zou X, Zhou L, Wang L. Comparison of Modified Cap-Assisted Endoscopic Mucosal Resection and Endoscopic Submucosal Dissection in Treating Intraluminal Gastric Gastrointestinal Stromal Tumor (≤20 mm). Clin Transl Gastroenterol 2023; 14:e00589. [PMID: 37019655 PMCID: PMC10299766 DOI: 10.14309/ctg.0000000000000589] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 03/23/2023] [Indexed: 04/07/2023] Open
Abstract
INTRODUCTION A modified cap-assisted endoscopic mucosal resection (mEMR-C), introduced in this study, was a novel variation of the standard EMR. We aimed to compare the outcomes of mEMR-C and endoscopic submucosal dissection (ESD) for the treatment of small (≤20 mm) intraluminal gastric gastrointestinal stromal tumors (gGISTs). METHODS This retrospective study included 43 patients who underwent mEMR-C and 156 patients who received ESD at Nanjing Drum Tower Hospital. Baseline characteristics, adverse events, and clinical outcomes were compared between the 2 groups. Univariate and multivariable analyses were conducted to adjust for confounders. After propensity score matching using sex, year, location, and tumor size, outcomes were compared with 41 patients in each group. RESULTS A total of 199 patients underwent endoscopic resection and the en bloc resection rate was 100%. The complete resection rate was comparable in both groups ( P = 1.000). Approximately 9.5% of all patients had a positive margin. There was no significant difference in positive margin for patients undergoing mEMR-C or ESD (9.3% vs 9.6%, P = 1.000). No difference in adverse events in both groups ( P = 0.724). The mEMR-C was associated with shorter operation time and lower cost than the ESD. Recurrence was reported in 2 patients at 1 and 5 years after ESD during a median follow-up of 62 months. No metastasis and disease-related death were identified in both groups. Propensity score matching analysis revealed similar results. DISCUSSION The mEMR-C was found to be the preferable technique for small (≤20 mm) intraluminal gGISTs with shorter operation time and lower cost as compared with ESD.
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Affiliation(s)
- Rui Meng
- Department of Gastroenterology, Nanjing Drum Tower Hospital, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Muhan Ni
- Department of Gastroenterology, Nanjing Drum Tower Hospital, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Wei Ren
- Department of Geriatric Medicine, Nanjing Drum Tower Hospital, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Ting Zhou
- Department of Gastroenterology, Nanjing Drum Tower Hospital, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Xiang Zhang
- Department of Gastroenterology, Nanjing Drum Tower Hospital, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Peng Yan
- Department of Gastroenterology, Nanjing Drum Tower Hospital, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Xiwei Ding
- Department of Gastroenterology, Nanjing Drum Tower Hospital, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Guifang Xu
- Department of Gastroenterology, Nanjing Drum Tower Hospital, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Ying Lv
- Department of Gastroenterology, Nanjing Drum Tower Hospital, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Xiaoping Zou
- Department of Gastroenterology, Nanjing Drum Tower Hospital, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Lin Zhou
- Department of Gastroenterology, Nanjing Drum Tower Hospital, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Lei Wang
- Department of Gastroenterology, Nanjing Drum Tower Hospital, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
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Massironi S, Gallo C, Laffusa A, Ciuffini C, Conti CB, Barbaro F, Boskoski I, Dinelli ME, Invernizzi P. Endoscopic techniques for gastric neuroendocrine tumors: An update. World J Gastrointest Endosc 2023; 15:103-113. [PMID: 37034968 PMCID: PMC10080559 DOI: 10.4253/wjge.v15.i3.103] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 01/11/2023] [Accepted: 02/08/2023] [Indexed: 03/16/2023] Open
Abstract
Gastric neuroendocrine neoplasms (gNENs) are a rare type of gastric neoplasm, even if their frequency is increasing according to the latest epidemiologic revisions of the main registries worldwide. They are divided into three main subtypes, with different pathogeneses, biological behaviors, and clinical characteristics. GNEN heterogeneity poses challenges, therefore these neoplasms require different management strategies. Update the knowledge on the endoscopic treatment options to manage g-NENs. This manuscript is a narrative review of the literature. In recent years, many advances have been made not only in the knowledge of both the pathogenesis and the molecular profiling of gNENs but also in the endoscopic expertise towards innovative treatment options, which proved to be less aggressive without losing the capability of being radical. The endoscopic approach is increasingly applied in the field of gastrointestinal (GI) luminal neoplasms, and this is true not only for adenocarcinomas but also for gNENs. In particular, different techniques have been described for the endoscopic removal of suspected lesions, ranging from classical polypectomy (cold or hot snare) to endoscopic mucosal resection (both with “en bloc” or piecemeal technique), endoscopic submucosal dissection, and endoscopic full-thickness resection. GNENs comprise different subtypes of neoplasms with distinct management and prognosis. New endoscopic techniques offer a wide variety of approaches for GI localized neoplasms, which demonstrated to be appropriate and effective also in the case of gNENs. Correct evaluation of size, site, morphology, and clinical context allows the choice of tailored therapy in order to guarantee a definitive treatment.
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Affiliation(s)
- Sara Massironi
- Gastroenterology Unit, Fondazione IRCCS San Gerardo dei Tintori, Monza (MB) 20900, Italy
| | - Camilla Gallo
- Gastroenterology Unit, Fondazione IRCCS San Gerardo dei Tintori, Monza (MB) 20900, Italy
| | - Alice Laffusa
- Interventional Endoscopy Unit, Fondazione IRCCS San Gerardo dei Tintori, Monza (MB) 20900, Italy
| | - Cristina Ciuffini
- Digestive Endoscopy Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Università Cattolica del Sacro Cuore di Roma, Center for Endoscopic Research Therapeutics and Training (CERTT), Roma 00168, Italy
| | - Clara Benedetta Conti
- Interventional Endoscopy Unit, Fondazione IRCCS San Gerardo dei Tintori, Monza (MB) 20900, Italy
| | - Federico Barbaro
- Digestive Endoscopy Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Università Cattolica del Sacro Cuore di Roma, Center for Endoscopic Research Therapeutics and Training (CERTT), Roma 00168, Italy
| | - Ivo Boskoski
- Digestive Endoscopy Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Università Cattolica del Sacro Cuore di Roma, Center for Endoscopic Research Therapeutics and Training (CERTT), Roma 00168, Italy
| | - Marco Emilio Dinelli
- Interventional Endoscopy Unit, Fondazione IRCCS San Gerardo dei Tintori, Monza (MB) 20900, Italy
| | - Pietro Invernizzi
- Gastroenterology Unit, Fondazione IRCCS San Gerardo dei Tintori, Monza (MB) 20900, Italy
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Chiu PWY, Yip HC, Chan SM, Ng SKK, Teoh AYB, Ng EKW. Endoscopic full-thickness resection (EFTR) compared to submucosal tunnel endoscopic resection (STER) for treatment of gastric gastrointestinal stromal tumors. Endosc Int Open 2023; 11:E179-E186. [PMID: 36845271 PMCID: PMC9949978 DOI: 10.1055/a-1972-3409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 11/02/2022] [Indexed: 11/06/2022] Open
Abstract
Background and study aims Submucosal tunnel endoscopic resection (STER) is being increasingly performed for treatment of gastric gastrointestinal stromal tumor (GIST), while STER has been limited by close dissection within tunnel and risking breach of tumor capsule. Endoscopic full-thickness resection (EFTR) allows resection of GIST with margins to prevent recurrence. This study aimed to compare EFTR against STER for treatment of gastric GIST. Patients and methods We retrospectively reviewed clinical outcomes of patients with gastric GIST who received either STER or EFTR. Patients with gastric GISTs < than 4 cm were included. Clinical outcomes including baseline demographics, perioperative and oncological outcomes were compared between the two groups. Results From 2013 to 2019, 46 patients with gastric GISTs were treated with endoscopic resection, 26 received EFTR and 20 received STER. Most of the GISTs were in the proximal stomach. There was no difference in operative time (94.9 vs 84.9 mins; P = 0.401), while endoscopic suturing was applied more for closure after EFTR ( P < 0.0001). Patients after STER had earlier resumption of diet and shorter hospital stay while there was no difference in adverse event rate between two groups. The en-bloc resection rate for EFTR was significantly higher than for STER (100 % vs 80 %; P = 0.029), while there was no difference in the local recurrence. Conclusions This study demonstrated that although patients who received EFTR had longer hospital stays and slower resumption of diet compared to those who underwent STER, EFTR achieved a significantly higher rate of en-bloc resection compared to STER for treatment of gastric GIST.
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Affiliation(s)
- Philip Wai Yan Chiu
- Division of Upper GI and Metabolic Surgery, Department of Surgery, Institute of Digestive Disease, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong S.A.R, China
| | - Hon Chi Yip
- Division of Upper GI and Metabolic Surgery, Department of Surgery, Institute of Digestive Disease, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong S.A.R, China
| | - Shannon Melissa Chan
- Division of Upper GI and Metabolic Surgery, Department of Surgery, Institute of Digestive Disease, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong S.A.R, China
| | - Stephen Ka Kei Ng
- Division of Upper GI and Metabolic Surgery, Department of Surgery, Institute of Digestive Disease, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong S.A.R, China
| | - Anthony Yuen Bun Teoh
- Division of Upper GI and Metabolic Surgery, Department of Surgery, Institute of Digestive Disease, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong S.A.R, China
| | - Enders Kwok Wai Ng
- Division of Upper GI and Metabolic Surgery, Department of Surgery, Institute of Digestive Disease, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong S.A.R, China
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Khan S, Cui X, Nasir S, Rafiq SM, Qin B, Bai Q. Advances in endoscopic resection techniques of small gastric tumors originating from the muscularis propria. Front Oncol 2022; 12:1001112. [PMID: 36091154 PMCID: PMC9453668 DOI: 10.3389/fonc.2022.1001112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 08/08/2022] [Indexed: 12/26/2022] Open
Abstract
Gastrointestinal stromal tumors are common gastrointestinal tumors typically originating from the muscularis propria layer of the stomach. Small gastric stromal tumors are usually detected incidentally during routine endoscopic examination. Although they may have malignant potentially, controversies remain regarding the need for endoscopic resection of small gastric stromal tumors originating from the muscularis propria. According to the guidelines of the European Society of Medical Oncology, all gastrointestinal stromal tumors >2 cm in size should be resected with endoscopic surveillance recommended for tumors <2 cm. Endoscopic resection including endoscopic mucosal dissection (EMD), endoscopic submucosal dissection (ESD), submucosal tunneling endoscopic resection and snare assisted endoscopic resection. However, EMD and ESD procedures may be accompanied with serious complications including perforation, bleeding, and abdominal infection. Snare-assisted endoscopic resection is an alternative approach and has the advantages of a shorter procedure time and a low rate of perforation or bleeding. This study summarizes the safety and feasibility of a novel snare-assisted endoscopic resection technique and highlights the pros and cons of the different endoscopic approaches currently used for subepithelia small gastric tumors.
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Affiliation(s)
- Suliman Khan
- Department of Cerebrovascular Diseases, the Second Affiliated hospital of Zhengzhou University, Zhengzhou, China
| | - Xiaona Cui
- Department of Anesthesiaology, the Second Affiliated hospital of Zhengzhou University, Zhengzhou, China
| | - Safyan Nasir
- Department of Medicine, Allied/District Headquarter Hospital Faisalabad, Faisalabad, Pakistan
| | - Shoaib Mohammad Rafiq
- Department of Medicine, District Headquarter Hospital Gujranwala, Gujranwala, Pakistan
| | - Bo Qin
- Translational Medical Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- *Correspondence: Bo Qin, ; Qian Bai,
| | - Qian Bai
- Department of Anesthesiaology, the Second Affiliated hospital of Zhengzhou University, Zhengzhou, China
- *Correspondence: Bo Qin, ; Qian Bai,
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Turshudzhyan A, Rezaizadeh H, Tadros M. Lessons learned: Preventable misses and near-misses of endoscopic procedures. World J Gastrointest Endosc 2022; 14:302-310. [PMID: 35719899 PMCID: PMC9157695 DOI: 10.4253/wjge.v14.i5.302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/01/2021] [Accepted: 04/21/2022] [Indexed: 02/06/2023] Open
Abstract
Endoscopy is a complex procedure that requires advanced training and a highly skilled practitioner. The advances in the field of endoscopy have made it an invaluable diagnostic tool, but the procedure remains provider dependent. The quality of endoscopy may vary from provider to provider and, as a result, is not perfect. Consequently, 11.3% of upper gastrointestinal neoplasms are missed on the initial upper endoscopy and 2.1%-5.9% of colorectal polyps or cancers are missed on colonoscopy. Pathology is overlooked if endoscopic exam is not done carefully, bypassing proper visualization of the scope’s entry and exit points or, if exam is not taken to completion, not visualizing the most distal bowel segments. We hope to shed light on this issue, establish areas of weakness, and propose possible solutions and preventative measures.
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Affiliation(s)
- Alla Turshudzhyan
- Department of Medicine, University of Connecticut, Farmington, CT 06030, United States
| | - Houman Rezaizadeh
- Department of Gastroenterology and Hepatology, University of Connecticut, Farmington, CT 06030, United States
| | - Micheal Tadros
- Department of Gastroenterology and Hepatology, Albany Medical College, Albany, NY 12208, United States
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Snare-assisted endoscopic resection of gastric subepithelial tumors originating from the muscularis propria layer: a multicenter study. Surg Endosc 2019; 34:3827-3832. [PMID: 31617089 DOI: 10.1007/s00464-019-07147-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 09/24/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIM Although successful endoscopic resection of gastric subepithelial tumors (SETs) originating from the muscularis propria (MP) layer has been frequently reported, it requires a relatively complicated technique and has a high perforation rate. In this retrospective study, we evaluated the efficacy and safety of the snare-assisted endoscopic resection (SAER) method which is performed using a snare and insulated-tip (IT) knife via a single-channel endoscope to reduce the perforation rate. METHODS In this study, fifty-six patients with gastric SETs originating from the MP layer treated by the SAER method at three institutions between July 2017 and December 2017 were reviewed. The procedure involved multiple steps as shown in Fig. 2. Data were obtained on demographics, SET features, histopathological diagnoses, procedure time, en bloc resection rate, R0 resection (negative margins) status, and adverse events. RESULTS Endoscopic resection was successfully performed in all patients. The median overall procedure time was 43.5 min (range 26-106 min). The mean size of resected specimens was 19.73 mm (range 10-33 mm). The overall rate of en bloc resection was 96.4% (54/56). In addition, the perforation rate was 7.1% (4/56), and defects in the stomach wall were very small and easily closed using metallic clips. No postprocedural bleeding occurred in any case. CONCLUSIONS The SAER method is an effective, safe, less costly technique for the removal of some gastric SETs originating from the MP layer with an appropriate size.
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Li B, Chen T, Qi ZP, Yao LQ, Xu MD, Shi Q, Cai SL, Sun D, Zhou PH, Zhong YS. Efficacy and safety of endoscopic resection for small submucosal tumors originating from the muscularis propria layer in the gastric fundus. Surg Endosc 2018; 33:2553-2561. [PMID: 30478693 DOI: 10.1007/s00464-018-6549-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 10/15/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Gastric small submucosal tumors (SMTs) are becoming increasingly common. However, the fundus of stomach is regarded as a difficult area for endoscopic resection (ER). In this study, we investigated the efficacy, safety, and long-term outcomes of ER for small SMTs of the gastric fundus in a large series of patients, research that was previously lacking. METHODS 537 consecutive patients with SMTs no more than 20 mm in diameter, occurring in the gastric fundus and originating from the muscularis propria layer, which were treated with endoscopic submucosal excavation or endoscopic full-thickness resection (EFTR) were included in this retrospective study at Zhongshan Hospital of Fudan University from January 2013 to September 2016. Clinicopathological, endoscopic, and follow-up data were collected and analyzed. RESULTS En bloc resection was achieved in 100% of patients, and complete resection was achieved for 530 (98.7%) lesions. Although the total rate of complications was 9.3%, few serious adverse events occurred in only three (0.6%) patients, including major pneumoperitoneum, major hydrothorax, and bleeding. Unlike lager tumor sizes and longer procedure times, endoscopist experience had a positive impact on decreasing the likelihood of complications. Based on statistical analysis, tumors with greater size near the cardia, which were treated by EFTR, were the significant contributors to longer operative times. A median follow-up of 32 months was available, and all patients were free from local recurrence or distant metastasis during the study period. CONCLUSIONS Although the gastric fundus presents technical difficulties, ER is effective for the resection of small gastric SMTs with a high complete resection rate and rare serious adverse events.
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Affiliation(s)
- Bing Li
- Endoscopy Center, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032, China.,Endoscopy Research Institute of Fudan University, Shanghai, 200032, China
| | - Tao Chen
- Endoscopy Center, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032, China.,Endoscopy Research Institute of Fudan University, Shanghai, 200032, China
| | - Zhi-Peng Qi
- Endoscopy Center, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032, China.,Endoscopy Research Institute of Fudan University, Shanghai, 200032, China
| | - Li-Qing Yao
- Endoscopy Center, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032, China.,Endoscopy Research Institute of Fudan University, Shanghai, 200032, China
| | - Mei-Dong Xu
- Endoscopy Center, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032, China.,Endoscopy Research Institute of Fudan University, Shanghai, 200032, China
| | - Qiang Shi
- Endoscopy Center, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032, China.,Endoscopy Research Institute of Fudan University, Shanghai, 200032, China
| | - Shi-Lun Cai
- Endoscopy Center, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032, China.,Endoscopy Research Institute of Fudan University, Shanghai, 200032, China
| | - Di Sun
- Endoscopy Center, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032, China.,Endoscopy Research Institute of Fudan University, Shanghai, 200032, China
| | - Ping-Hong Zhou
- Endoscopy Center, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032, China. .,Endoscopy Research Institute of Fudan University, Shanghai, 200032, China.
| | - Yun-Shi Zhong
- Endoscopy Center, Zhongshan Hospital of Fudan University, 180 Fenglin Road, Shanghai, 200032, China. .,Endoscopy Research Institute of Fudan University, Shanghai, 200032, China.
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