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Zhao Z, Jiao Y, Yang S, Zhou A, Zhao G, Guo S, Li P, Zhang S. Endoscopic diagnosis and treatment of superficial non-ampullary duodenal epithelial tumors: A review. J Transl Int Med 2023; 11:206-215. [PMID: 37662895 PMCID: PMC10474890 DOI: 10.2478/jtim-2023-0102] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2023] Open
Abstract
The surface of the small bowel mucosa is covered more than any other section of the digestive canal; however, the overall prevalence of small bowel tumors of the whole gastrointestinal tract is evidently low. Owing to the improvement in endoscopic techniques, the prevalence of small bowel tumors has increased across multiple countries, which is mainly due to an increase in duodenal tumors. Superficial non-ampullary duodenal epithelial tumors (SNADETs) are defined as tumors originating from the non-ampullary region in the duodenum that share similarities and discrepancies with their gastric and colorectal counterparts in the pathogenesis and clinicopathologic characteristics. To date, white light endoscopy (WLE) remains the cornerstone of endoscopic diagnosis for SNADETs. Besides, narrow-band imaging (NBI) techniques and magnifying endoscopy (ME) have been widely used in the clinic and endorsed by multiple guidelines and consensuses for SNADETs' evaluation. Confocal laser endomicroscopy (CLE), endocytoscopy (ECS), and artificial intelligence (AI) are also up-and-coming methods, showing an exceptional value in the diagnosis of SNADETs. Similar to the endoscopic treatment for colorectal polyps, the choices for SNADETs mainly include cold snare polypectomy (CSP), endoscopic mucosal resection (EMR), endoscopic submucosal dissection (ESD), and laparoscopic endoscopic cooperative surgery (LECS). However, owing to the narrow lumen, rich vascularity, weak muscle layer, abundant Brunner's gland, and the hardship of endoscope control, the duodenum ranks as one of the most dangerous operating areas in the digestive tract. Therefore, endoscopists must anticipate the difficulties in endoscopic maneuverability, remain aware of the increased risk of complications, and then select the appropriate treatment according to the advantages and disadvantages of each method.
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Affiliation(s)
- Zheng Zhao
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing100050, China
| | - Yue Jiao
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing100050, China
| | - Shuyue Yang
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing100050, China
| | - Anni Zhou
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing100050, China
| | - Guiping Zhao
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing100050, China
| | - Shuilong Guo
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing100050, China
| | - Peng Li
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing100050, China
| | - Shutian Zhang
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing100050, China
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Seo HS, Kim SJ, Jeon CH, Song KY, Lee HH. The First Systematic Gastroscopy Training Program for Surgeons in Korea. J Korean Med Sci 2022; 37:e295. [PMID: 36254531 PMCID: PMC9577353 DOI: 10.3346/jkms.2022.37.e295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 08/23/2022] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Endoscopic evaluation of the stomach is essential for preoperative planning and post-surgical surveillance for various diseases of the stomach, including malignancy. The gastroscopy education program for surgeons is currently in its infancy and is not systematically organized in Korea. This study aimed to introduce the first systematic gastroscopy education program for surgeons in Korea. METHODS The gastroscopy education program entitled "Gastroscopy School for Surgeons (GSS)" comprised of theoretical education, dry lab hands-on training, and clinical practice. All participants were beginners without any gastroscopy experience. Clinical practice started after the completion of the theoretical and dry lab training. The gastroscopy practices utilized simple luminal observation, biopsy, localization using clips or dye injection, and limited therapeutic gastroscopy. The educational performances and surveys from 33 participants were analyzed. RESULTS The participants consisted of surgical residents, general surgeons, gastrointestinal-specialized surgeons, and physicians. Participants performed a total of 2,272 gastroscopies, 2,008 of which were post-gastrectomy cases. Currently, of the 33 participants, 7 (21.2%) of the participants performed gastroscopy regularly, and 7 (21.2%) occasionally. According to the self-reported survey, one participant assessed their current gastroscopic technique to be at the expert level, and 25 (75.8%) at a proficient level. All participants considered gastroscopy education for surgeons to be necessary, and 28 (84.8%) stated that systematic education is not currently provided in Korea. CONCLUSION We introduced the first systematic gastroscopy education program for surgeons in Korea, namely the GSS, which is practical and meets clinical needs. More training centers are needed to expand gastroscopy training among Korean surgeons.
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Affiliation(s)
- Ho Seok Seo
- Division of Gastrointestinal Surgery, Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - So Jung Kim
- Division of Gastrointestinal Surgery, Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Chul Hyo Jeon
- Division of Gastrointestinal Surgery, Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Kyo Young Song
- Division of Gastrointestinal Surgery, Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Han Hong Lee
- Division of Gastrointestinal Surgery, Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
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3
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Zou Q, Lv Y, Gan Z, Liao S, Liang Z. Identification and Validation of a Malignant Cell Subset Marker-Based Polygenic Risk Score in Stomach Adenocarcinoma Through Integrated Analysis of Bulk and Single-Cell RNA Sequencing Data. Front Cell Dev Biol 2021; 9:720649. [PMID: 34733840 PMCID: PMC8558465 DOI: 10.3389/fcell.2021.720649] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 09/23/2021] [Indexed: 12/11/2022] Open
Abstract
Objectives: The aim of the present study was to construct a polygenic risk score (PRS) for poor survival among patients with stomach adenocarcinoma (STAD) based on expression of malignant cell markers. Methods: Integrated analyses of bulk and single-cell RNA sequencing (scRNA-seq) of STAD and normal stomach tissues were conducted to identify malignant and non-malignant markers. Analyses of the scRNA-seq profile from early STAD were used to explore intratumoral heterogeneity (ITH) of the malignant cell subpopulations. Dimension reduction, cell clustering, pseudotime, and gene set enrichment analyses were performed. The marker genes of each malignant tissue and cell clusters were screened to create a PRS using Cox regression analyses. Combined with the PRS and routine clinicopathological characteristics, a nomogram tool was generated to predict prognosis of patients with STAD. The prognostic power of the PRS was validated in two independent external datasets. Results: The malignant and non-malignant cells were identified according to 50 malignant and non-malignant cell markers. The malignant cells were divided into nine clusters with different marker genes and biological characteristics. Pseudotime analysis showed the potential differentiation trajectory of these nine malignant cell clusters and identified genes that affect cell differentiation. Ten malignant cell markers were selected to generate a PRS: RGS1, AADAC, NPC2, COL10A1, PRKCSH, RAMP1, PRR15L, TUBA1A, CXCR6, and UPP1. The PRS was associated with both overall and progression-free survival (PFS) and proved to be a prognostic factor independent of routine clinicopathological characteristics. PRS could successfully divide patients with STAD in three datasets into high- or low-risk groups. In addition, we combined PRS and the tumor clinicopathological characteristics into a nomogram tool to help predict the survival of patients with STAD. Conclusion: We revealed limited but significant intratumoral heterogeneity in STAD and proposed a malignant cell subset marker-based PRS through integrated analysis of bulk sequencing and scRNA-seq data.
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Affiliation(s)
- Qiyuan Zou
- Department of Gastroenterology, Foresea Life Insurance Guangxi Hospital, Nanning, China
| | - Yufeng Lv
- Center of Oncology, Foresea Life Insurance Guangxi Hospital, Nanning, China
| | - Zuhuan Gan
- Center of Oncology, Foresea Life Insurance Guangxi Hospital, Nanning, China
| | - Shulan Liao
- Department of Gastroenterology, Foresea Life Insurance Guangxi Hospital, Nanning, China
| | - Zhonghui Liang
- Department of Gastroenterology, Foresea Life Insurance Guangxi Hospital, Nanning, China
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Durak S, Bayram B, Bakırman T, Erkut M, Doğan M, Gürtürk M, Akpınar B. Deep neural network approaches for detecting gastric polyps in endoscopic images. Med Biol Eng Comput 2021; 59:1563-1574. [PMID: 34259974 DOI: 10.1007/s11517-021-02398-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 06/18/2021] [Indexed: 12/18/2022]
Abstract
Gastrointestinal endoscopy is the primary method used for the diagnosis and treatment of gastric polyps. The early detection and removal of polyps is vitally important in preventing cancer development. Many studies indicate that a high workload can contribute to misdiagnosing gastric polyps, even for experienced physicians. In this study, we aimed to establish a deep learning-based computer-aided diagnosis system for automatic gastric polyp detection. A private gastric polyp dataset was generated for this purpose consisting of 2195 endoscopic images and 3031 polyp labels. Retrospective gastrointestinal endoscopy data from the Karadeniz Technical University, Farabi Hospital, were used in the study. YOLOv4, CenterNet, EfficientNet, Cross Stage ResNext50-SPP, YOLOv3, YOLOv3-SPP, Single Shot Detection, and Faster Regional CNN deep learning models were implemented and assessed to determine the most efficient model for precancerous gastric polyp detection. The dataset was split 70% and 30% for training and testing all the implemented models. YOLOv4 was determined to be the most accurate model, with an 87.95% mean average precision. We also evaluated all the deep learning models using a public gastric polyp dataset as the test data. The results show that YOLOv4 has significant potential applicability in detecting gastric polyps and can be used effectively in gastrointestinal CAD systems. Gastric Polyp Detection Process using Deep Learning with Private Dataset.
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Affiliation(s)
- Serdar Durak
- Faculty of Medicine, Department of Gastroenterology, Karadeniz Technical University, Trabzon, Turkey
| | - Bülent Bayram
- Department of Geoinformatics, Yildiz Technical University, Istanbul, Turkey
| | - Tolga Bakırman
- Department of Geoinformatics, Yildiz Technical University, Istanbul, Turkey.
| | - Murat Erkut
- Faculty of Medicine, Department of Gastroenterology, Karadeniz Technical University, Trabzon, Turkey
| | - Metehan Doğan
- Department of Geoinformatics, Yildiz Technical University, Istanbul, Turkey
| | - Mert Gürtürk
- Department of Geoinformatics, Yildiz Technical University, Istanbul, Turkey
| | - Burak Akpınar
- Department of Geoinformatics, Yildiz Technical University, Istanbul, Turkey
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Chen HY, Ning SB, Yin X, Li BR, Zhang J, Jin XW, Sun T, Xia ZB, Zhang XP. Balloon-assisted endoscopic submucosal dissection for treating small intestinal lipomas: Report of two cases. World J Clin Cases 2021; 9:1631-1638. [PMID: 33728306 PMCID: PMC7942049 DOI: 10.12998/wjcc.v9.i7.1631] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 08/21/2020] [Accepted: 01/05/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Most small intestinal lipomas are treated surgically, and some require repeated surgeries for multiple lipomas. However, application of endoscopic submucosal dissection (ESD) technology in the deep small intestine is rarely reported owing to the special anatomical structure of the small intestine, medical equipment limitations, and the lack of relevant experience among endoscopists.
CASE SUMMARY Two patients with small intestinal lipomas treated at the Air Force Medical Center from November 2015 to September 2019 were selected to undergo balloon-assisted ESD to treat the lipomas and explore the technical feasibility and safety of ESD for treating small intestinal lipomas. The two patients successfully underwent balloon-assisted ESD to treat four small intestinal lipomas, with a complete resection rate of 100% (4/4), without intraoperative or postoperative bleeding, perforation, or other complications. After 3-6 mo of postoperative follow-up, the clinical symptoms caused by the lipomas were significantly relieved or disappeared after treatment.
CONCLUSION Balloon-assisted ESD is a safe and reliable new method for treating deep intestinal lipomas and shows good clinical feasibility.
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Affiliation(s)
- Hong-Yu Chen
- Department of Gastroenterology, Air Force Medical Center, PLA of China, Beijing 100142, China
| | - Shou-Bin Ning
- Department of Gastroenterology, Air Force Medical Center, PLA of China, Beijing 100142, China
| | - Xin Yin
- Department of Gastroenterology, Air Force Medical Center, PLA of China, Beijing 100142, China
| | - Bai-Rong Li
- Department of Gastroenterology, Air Force Medical Center, PLA of China, Beijing 100142, China
| | - Jing Zhang
- Department of Gastroenterology, Air Force Medical Center, PLA of China, Beijing 100142, China
| | - Xiao-Wei Jin
- Department of Gastroenterology, Air Force Medical Center, PLA of China, Beijing 100142, China
| | - Tao Sun
- Department of Gastroenterology, Air Force Medical Center, PLA of China, Beijing 100142, China
| | - Zhi-Bo Xia
- Department of Gastroenterology, Air Force Medical Center, PLA of China, Beijing 100142, China
| | - Xiao-Peng Zhang
- Department of Gastroenterology, Air Force Medical Center, PLA of China, Beijing 100142, China
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Embaye KS, Zhang C, Ghebrehiwet MA, Wang Z, Zhang F, Liu L, Qin S, Qin L, Wang J, Wang X. Clinico-pathologic determinants of non-e-curative outcome following en-bloc endoscopic submucosal dissection in patients with early gastric neoplasia. BMC Cancer 2021; 21:92. [PMID: 33482761 PMCID: PMC7824923 DOI: 10.1186/s12885-020-07762-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 11/09/2020] [Indexed: 02/08/2023] Open
Abstract
Background Endoscopic submucosal dissection (ESD) is gaining enormous popularity in the treatment of early gastric cancers (EGCs) in many institutions across the world. However, appropriate selection of candidates for endoscopic resection is crucial to sufficiently mitigate non-e-curative (NEC) resection. This study aims at identifying the various clinico-pathologic factors that independently predict the NEC outcome and depth of submucosal invasion following ESD procedure in patients with EGC. Methods Multiple logistic regression analysis was applied to investigate factors that independently predict both non-curability phenomenon and the level of submucosal invasion in patients with early gastric neoplasia. Statistical Packages for the Social Sciences version 23 was used for analysis. Results A total of 153 patients (162 EGC lesions) underwent en-bloc ESD after which the rate of complete resection and non-e-curative outcome were 95% and 22.2%, correspondingly. Multivariate analysis depicted that tumor location in the upper two third of stomach (odds ratio [OR], 5.46; 95% confidence interval [95% CI], 1.65–18.12; p = 0.006), tumor size > 2 cm (OR, 7.63; 95% CI, 2.29–25.42; p = 0.001), histologically undifferentiated tumor (OR, 15.54; 95% CI, 1.65–146.22; p = 0.001), and tumors with 0-IIa/0-IIc or their mixed variants with predominant 0-IIa/0-IIc (OR, 9.77; 95% CI, 1.23–77.65; p = 0.031) were all independent predictors of NEC resection for early gastric tumors. Additionally, location in the upper two third of the stomach (OR, 8.88; 95% CI, 2.90–27.17; p < 0.001), ulcerated lesions (OR, 3.70; 95% CI, 1.15–11.90; p = 0.028), lesions with > 2 cm (OR, 2.94; 95% CI, 1.08–8.02; p = 0.036) and those with poor differentiation (OR, 6.51; 95% CI, 2.23–18.98; p = 0.001) were found to have significant association with submucosal invasion. Conclusions Tumors located in the upper two third of the stomach having a larger size (> 2 cm), poor histo-differentiation and a gross type of 0-IIa/0-IIc or their mixed variants with predominant 0-IIa/0-IIc were significantly associated with a risk of NEC after ESD procedure. Thus, early gastric tumors displaying these features need to be handled carefully during endoscopic resection. Our findings may shed light on the pre-procedural detection of clinicopathologic factors that determine non-e-curability in patients with EGC.
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Affiliation(s)
- Kidane Siele Embaye
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.,Orotta College of Medicine and Health Sciences, Asmara, Eritrea
| | - Chao Zhang
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Matiwos Araya Ghebrehiwet
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.,Orotta College of Medicine and Health Sciences, Asmara, Eritrea
| | - Zhihao Wang
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Fengdi Zhang
- Wuhan Third Hospital (Tongren Hospital of Wuhan University), Wuhan, 430060, China
| | - Liwei Liu
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Shenghui Qin
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Lingzhi Qin
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jun Wang
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xi Wang
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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Seo HS, Yoo HM, Jung YJ, Lee SH, Park JM, Song KY, Jung ES, Choi MG, Park CH. Regional Lymph Node Dissection as an Additional Treatment Option to Endoscopic Resection for Expanded Indications in Gastric Cancer: a Prospective Cohort Study. J Gastric Cancer 2020; 20:442-453. [PMID: 33425445 PMCID: PMC7781746 DOI: 10.5230/jgc.2020.20.e35] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/14/2020] [Accepted: 12/16/2020] [Indexed: 12/18/2022] Open
Abstract
Purpose Expanded indications for endoscopic submucosal dissection (ESD) in early gastric cancer (EGC) remain controversial due to the potential risk of undertreatment after adequate lymph node dissection (LND). Regional LND (RLND) is a novel technique used for limited lymphadenectomy to avoid gastrectomy. This study established the safety and effectiveness of RNLD as an additional treatment option after ESD for expanded indications. Materials and Methods A total of 69 patients who met the expanded indications for ESD were prospectively enrolled from 2014 to 2017. The tumors were localized using intraoperative esophagogastroduodenoscopy (EGD) before RLND. All patients underwent RLND first, followed by conventional radical gastrectomy with LND. The locations of the preoperative and intraoperative EGD were compared. Pathologic findings of the primary lesion and the RLND status were analyzed. Results The concordance rates of tumor location between the preoperative and intraoperative EGD were 79.7%, 76.8%, and 63.8% according to the longitudinal, circumferential, and regional locations, respectively. Of the 4 patients (5.7%) with metastatic LNs, 3 were pathologically classified as beyond the expanded indication for ESD and 1 had a single LN metastasis in the regional lymph node. Conclusions RLND is a safe additional option for the treatment of EGC in patients meeting expanded indications after ESD.
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Affiliation(s)
- Ho Seok Seo
- Division of Gastrointestinal Surgery, Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Han Mo Yoo
- Division of Gastrointestinal Surgery, Department of Surgery, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yoon Ju Jung
- Division of Gastrointestinal Surgery, Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sung Hak Lee
- Department of Hospital Pathology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jae Myung Park
- Division of Gastroenterology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Kyo Young Song
- Division of Gastrointestinal Surgery, Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Eun Sun Jung
- Department of Hospital Pathology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Myung-Gyu Choi
- Division of Gastroenterology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Cho Hyun Park
- Division of Gastrointestinal Surgery, Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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8
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Alnimer Y, Qasrawi A. Factors Associated with Worse Outcome in Early Stage Gastric Cancer Using the Surveillance, Epidemiology, and End Results (SEER) Database. Cureus 2020; 12:e7360. [PMID: 32328372 PMCID: PMC7174864 DOI: 10.7759/cureus.7360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 03/18/2020] [Indexed: 11/05/2022] Open
Abstract
Background The benefit of adjuvant treatment in gastric adenocarcinoma patients with involvement of the muscularis propria but not beyond is unclear. We aim to establish a model that identifies the factors that adversely affect the prognosis in these patients. Methods We used the Surveillance, Epidemiology, and End Results (SEER) database to identify subjects with stage T2aN0M0 gastric adenocarcinoma who had tumor resection between 2004 and 2015. Data pertaining to the following variables were collected: age, gender, ethnicity, tumor size, grade, site, number of lymph nodes (LNs) being examined, and extent of surgery. Results A total of 1307 patients met our inclusion criteria. The five-year overall survival (OS) was 65%. The following factors were significantly associated with a shorter OS in univariate analysis. Age > 60 years, non-Hispanic whites and non-Hispanic blacks, patients with less than 15 lymph nodes examined at the time of surgery, tumors at the fundus and cardia of the stomach, and those who underwent endoscopic resection or had partial esophagectomy. On multivariate Cox regression, the following factors were predictors for worse OS: age > 60 years with a hazards ratio (HR) = 2.03 (95% CI: 1.49-2.76), patients with less than 15 lymph nodes examined with HR = 1.72 (95% CI: 1.34-2.20), non-Hispanic whites and non-Hispanic blacks with HR = 1.62 (95% CI: 1.26-2.08), and tumors within the cardia and fundus of the stomach with HR = 1.51 (95% CI: 1.21-1.89). Conclusion Patients with stage T2aN0M0 gastric cancer who had their tumor located at the cardia or fundus of the stomach or those with inadequate lymph nodes resection had inferior survival and could potentially benefit from adjuvant chemotherapy.
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Affiliation(s)
- Yanal Alnimer
- Internal Medicine, Riverside Health System, Glen Allen, USA
| | - Ayman Qasrawi
- Hematology and Medical Oncology, University of Kentucky College of Medicine, Lexington, USA
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9
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Jung Y, Kwon CI, Chung IK, Kim G, Ko KH, Hong SP, Jeong S, Lee DH. Novel submucosal lifting gel for performing endoscopic mucosal resection after precutting in large gastric lesions: An animal feasibility study. INTERNATIONAL JOURNAL OF GASTROINTESTINAL INTERVENTION 2020. [DOI: 10.18528/ijgii190020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Yunho Jung
- Division of Gastroenterology, Department of Medicine, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Chang-Il Kwon
- Digestive Disease Center, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Il-Kwun Chung
- Division of Gastroenterology, Department of Medicine, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Gwangil Kim
- Department of Pathology, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Kwang Hyun Ko
- Digestive Disease Center, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Sung Pyo Hong
- Digestive Disease Center, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Seok Jeong
- Digestive Disease Center, Department of Internal Medicine, Inha University School of Medicine, Incheon, Korea
| | - Don Haeng Lee
- Digestive Disease Center, Department of Internal Medicine, Inha University School of Medicine, Incheon, Korea
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10
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Shah SC, Nakata C, Polydorides AD, Peek RM, Itzkowitz SH. Upper Endoscopy up to 3 Years Prior to a Diagnosis of Gastric Cancer Is Associated With Lower Stage of Disease in a USA Multiethnic Urban Population, a Retrospective Study. J Prev Med Public Health 2019; 52:179-187. [PMID: 31163953 PMCID: PMC6549011 DOI: 10.3961/jpmph.18.262] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 04/24/2019] [Indexed: 01/19/2023] Open
Abstract
OBJECTIVES In the USA, certain races and ethnicities have a disproportionately higher gastric cancer burden. Selective screening might allow for earlier detection and curative resection. Among a USA-based multiracial and ethnic cohort diagnosed with non-cardia gastric cancer (NCGC), we aimed to identify factors associated with curable stage disease at diagnosis. METHODS We retrospectively identified endoscopically diagnosed and histologically confirmed cases of NCGC at Mount Sinai Hospital in New York City. Demographic, clinical, endoscopic and histologic factors, as well as grade/stage of NCGC at diagnosis were documented. The primary outcome was the frequency of curable-stage NCGC (stage 0-1a) at diagnosis in patients with versus without an endoscopy negative for malignancy prior to their index exam diagnosing NCGC. Additional factors associated with curable-stage disease at diagnosis were determined. RESULTS A total of 103 racially and ethnically diverse patients were included. Nearly 38% of NCGC were stage 0-Ia, 34% stage Ib-III, and 20.3% stage IV at diagnosis. A significantly higher frequency of NCGC was diagnosed in curable stages among patients who had undergone an endoscopy that was negative for malignancy prior to their index endoscopy that diagnosed NCGC, compared to patients without a negative endoscopy prior to their index exam (69.6% vs. 28.6%, p=0.003). A prior negative endoscopy was associated with 94.0% higher likelihood of diagnosing curable-stage NCGC (p=0.003). No other factors analyzed were associated with curable-stage NCGC at diagnosis. CONCLUSIONS Endoscopic screening and surveillance in select high-risk populations might increase diagnoses of curable-stage NCGC. These findings warrant confirmation in larger, prospective studies.
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Affiliation(s)
- Shailja C Shah
- The Dr. Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Division of Gastroenterology, Hepatology, and Nutrition, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Chiaki Nakata
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Alexandros D Polydorides
- The Dr. Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Richard M Peek
- Division of Gastroenterology, Hepatology, and Nutrition, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Steven H Itzkowitz
- The Dr. Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Chen TH, Chiu CT, Lee C, Chu YY, Cheng HT, Hsu JT, Wu RC, Yeh TS, Lin KH. Circulating microRNA-22-3p Predicts the Malignant Progression of Precancerous Gastric Lesions from Intestinal Metaplasia to Early Adenocarcinoma. Dig Dis Sci 2018; 63:2301-2308. [PMID: 29736829 DOI: 10.1007/s10620-018-5106-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 04/26/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND Gastric cancer has a poor outcome and identifying useful biomarkers from peripheral blood or tissue could allow its early detection, or potentially precancerous changes, thus improving the curative rates. MicroRNAs (miRNAs) have been shown to offer great potential in cancer diagnosis and prediction. AIM Here, we investigated the role of plasma miRNAs in the natural course of gastric cancer, from intestinal metaplasia to early cancer. The findings were used to understand whether patients at a high risk of malignancy could be given appropriate interventions in the early disease process, such as using endoscopic submucosal dissection to treat gastric dysplasia or early gastric cancer. METHODS Participants were divided into healthy control, intestinal metaplasia (IM), and dysplasia/early cancer (pT1a/b) groups. Microarray was used to select potential markers in tissue. RESULTS Quantitative real-time polymerase chain reaction data showed circulating miRNA-22-3p had significantly different expression in patients with precancerous lesions or gastric adenocarcinoma. The areas under the curve of incomplete IM versus healthy control, low-grade/high-grade dysplasia, early gastric cancer, and GED were 0.8080, 0.8040, 0.8494, and 0.8095, respectively (all P values < 0.05). CONCLUSIONS Circulating miRNA-22-3p could be a potential biomarker for gastric precancerous dysplasia and early cancer detection.
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Affiliation(s)
- Tsung-Hsing Chen
- Department of Gastroenterology and Hepatology, Linkou Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
- Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Cheng-Tang Chiu
- Department of Gastroenterology and Hepatology, Linkou Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Chieh Lee
- Department of Industrial Engineering and Management, Yuan Ze University College of Engineering, Chung-Li City, Taiwan
| | - Yin-Yi Chu
- Department of Gastroenterology and Hepatology, Linkou Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Hao-Tsai Cheng
- Department of Gastroenterology and Hepatology, Linkou Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Jun-Te Hsu
- Department of Surgery, Linkou Chang Gung Memorial Hospital, Chang Gung University College of Medicine, 259 Wen-hwa 1 Road, Taoyuan, Taiwan
| | - Ren-Chin Wu
- Department of Pathology, Linkou Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Ta-Sen Yeh
- Department of Surgery, Linkou Chang Gung Memorial Hospital, Chang Gung University College of Medicine, 259 Wen-hwa 1 Road, Taoyuan, Taiwan.
| | - Kwang-Huei Lin
- Graduate Institute of Biomedical Sciences, School of Medicine, Chang Gung University, Taoyuan, Taiwan.
- Liver Research Center, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan.
- Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan.
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Yoshii T, Miyagi Y, Nakamura Y, Kobayashi O, Kameda Y, Ohkawa S. Pilot Research for the Correlation between the Expression Pattern of E-cadherin-β-Catenin Complex and Lymph Node Metastasis in Early Gastric Cancer. TUMORI JOURNAL 2018; 99:234-8. [DOI: 10.1177/030089161309900219] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Aims and background Early gastric cancer without lymph node metastasis can be treated with minimally invasive endoscopic surgery. Hence, a better modality for predicting lymph node metastasis should be beneficial to early gastric cancer patients who may only require minimally invasive treatment. In vitro, phosphorylation of β-catenin induces the loss of membranous β-catenin and E-cadherin, subsequently increasing the potential for metastasis. We investigated the behavior of these molecules comparing lymph node metastasis-positive and lymph node metastasis-negative groups, using the specimens from the patients with early gastric cancer. This was a pilot research evaluating the usefulness of combined analysis of these molecules in predicting lymph node metastasis in early gastric cancer. Methods The clinicopathological features and immunohistochemical expression patterns of E-cadherin and β-catenin in the primary lesion were studied retrospectively in 28 patients (lymph node metastasis-positive versus lymph node metastasis-negative: 14 vs 14) selected from 272 patients. These patients underwent radical surgery for the early gastric cancer treatment from April 2000 to March 2004 at our hospital. All patients gave written informed consent to use their tissues for the clinical study. Statistical analyses were performed by the chi-square test and Mann-Whitney test. Results More loss of membranous E-cadherin was observed in the lymph node metastasis-positive group than in the lymph node metastasis-negative group. Although the finding was slightly more marked in the intestinal than in the diffuse type early gastric cancer, there was no statistical significance. Loss of membranous β-catenin showed a similar trend and no statistical significance. When we evaluated the expression patterns of both molecules, dual loss of membranous E-cadherin and β-catenin significantly correlated with lymph node metastasis [dual loss in lymph node metastasis-positive versus lymph node metastasis-negative patients: 12 (86%) vs 6 (43%), P = 0.046]. Additionally, corresponding proportions in intestinal type early gastric cancer were 5 of 6 (83%) vs 0 of 6 (0%), P = 0.015. Conclusions Based on our results, the combined analysis of E-cadherin and β-catenin localizations may be helpful to accurately predict lymph node metastasis in intestinal type early gastric cancer.
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Affiliation(s)
| | - Yohei Miyagi
- Molecular Pathology and Genetics Division, Yokohama, Japan
| | | | | | - Yoichi Kameda
- Division of Pathology, Kanagawa Cancer Center, Yokohama, Japan
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13
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Chen TH, Lee C, Chiu CT, Chu YY, Cheng HT, Hsu JT, Tsou YK, Wu RC, Chen TC, Chang NC, Yeh TS, Lin KH. Circulating microRNA-196a is an early gastric cancer biomarker. Oncotarget 2017. [PMID: 29535809 PMCID: PMC5828184 DOI: 10.18632/oncotarget.23126] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
MicroRNA-196a (miRNA-196a) is associated with the development of gastric cancer and metastasis. Intestinal metaplasia and low- or high-grade dysplasia are considered to be precursors of intestinal type gastric cancer. Accordingly, we investigated the expression of plasma miRNA-196a as an early detection biomarker in precancerous gastric lesions and early cancer (pT1a/b), which is otherwise treated with endoscopic submucosal dissection. Our data showed that levels of circulating (plasma) miRNA-196a were higher in patients with precancerous lesions/early gastric adenocarcinoma than in healthy controls. The area under the receiver operating characteristic curve (AUC) for healthy controls vs. intestinal metaplasia was 0.9736; healthy controls vs. low-grade/high-grade dysplasia 0.9495; and healthy controls vs. early gastric cancer 0.9318. These results indicate that circulating miRNA-196a is a novel biomarker for detection of early gastric cancer and its precursor.
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Affiliation(s)
- Tsung-Hsing Chen
- Department of Gastroenterology and Hepatology, Linkou Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan.,Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Chieh Lee
- Department of Industrial Engineering and Management, Yuan Ze University College of Engineering, Chung-Li City, Taiwan
| | - Cheng-Tang Chiu
- Department of Gastroenterology and Hepatology, Linkou Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Yin-Yi Chu
- Department of Gastroenterology and Hepatology, Linkou Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Hao-Tsai Cheng
- Department of Gastroenterology and Hepatology, Linkou Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Jun-Te Hsu
- Department of Surgery, Chang Gung Memorial Hospital, Linkou, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Yung-Kuan Tsou
- Department of Gastroenterology and Hepatology, Linkou Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Ren-Chin Wu
- Department of Pathology, Linkou Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Tse-Ching Chen
- Department of Pathology, Linkou Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Nien-Chen Chang
- Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Ta-Sen Yeh
- Department of Surgery, Chang Gung Memorial Hospital, Linkou, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Kwang-Huei Lin
- Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan.,Liver Research Center, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan.,Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology Taoyuan, Taiwan
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14
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Sato C, Hirasawa K, Koh R, Ikeda R, Fukuchi T, Kobayashi R, Kaneko H, Makazu M, Maeda S. Postoperative bleeding in patients on antithrombotic therapy after gastric endoscopic submucosal dissection. World J Gastroenterol 2017; 23:5557-5566. [PMID: 28852315 PMCID: PMC5558119 DOI: 10.3748/wjg.v23.i30.5557] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 06/26/2017] [Accepted: 07/12/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To investigated the relationship between postoperative bleeding following gastric endoscopic submucosal dissection (ESD) and individual antithrombotic agents.
METHODS A total of 2488 gastric neoplasms in 2148 consecutive patients treated between May 2001 and June 2016 were studied. The antithrombotic agents were categorized into antiplatelet agents, anticoagulants, and other antithrombotic agents, and we included combination therapies [e.g., dual antiplatelet therapy (DAPT)]. The risk factors associated with post-ESD bleeding, namely, antithrombotic agents overall, individual antithrombotic agents, withdrawal or continuation of antithrombotic agents, and bleeding onset period (during the first six days or thereafter), were analyzed using univariate and multivariate analyses.
RESULTS The en bloc resection and complete curative resection rates were 99.2% and 91.9%, respectively. Postoperative bleeding occurred in 5.1% cases. Bleeding occurred in 10.3% of the patients administered antithrombotic agents. Being male (P = 0.007), specimen size (P < 0.001), and antithrombotic agent used (P < 0.001) were independent risk factors for postoperative bleeding. Heparin bridging therapy (HBT) (P = 0.002) and DAPT/multidrug combinations (P < 0.001) were independent risk factors associated with postoperative bleeding. The bleeding rate of the antithrombotic agent continuation group was significantly higher than that of the withdrawal group (P < 0.01). Bleeding within postoperative day (POD) 6 was significantly higher in warfarin (P = 0.015), and bleeding after POD 7 was significantly higher in DAPT/multidrug combinations (P = 0.007). No thromboembolic events were reported.
CONCLUSION We must closely monitor patients administered HBT and DAPT/multidrug combinations after gastric ESD, particularly those administered multidrug combinations after discharge.
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15
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Sentinel Node Mapping Using a Fluorescent Dye and Visible Light During Laparoscopic Gastrectomy for Early Gastric Cancer: Result of a Prospective Study From a Single Institute. Ann Surg 2017; 265:766-773. [PMID: 27058946 DOI: 10.1097/sla.0000000000001739] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE The aim of this study was to investigate the feasibility of sentinel node mapping using a fluorescent dye and visible light in patients with gastric cancer. BACKGROUND Recently, fluorescent imaging technology offers improved visibility with the possibility of better sensitivity or accuracy in sentinel node mapping. METHODS Twenty patients with early gastric cancer, for whom laparoscopic distal gastrectomy with standard lymphadenectomy had been planned, were enrolled in this study. Before lymphadenectomy, the patients received a gastrofiberoscopic peritumoral injection of fluorescein solution. The sentinel basin was investigated via laparoscopic fluorescent imaging under blue light (wavelength of 440-490 nm) emitted from an LED curing light. The detection rate and lymph node status were analyzed in the enrolled patients. In addition, short-term clinical outcomes were also investigated. RESULTS No hypersensitivity to the dye was identified in any enrolled patients. Sentinel nodes were detected in 19 of 20 enrolled patients (95.0%), and metastatic lymph nodes were found in 2 patients. The latter lymph nodes belonged to the sentinel basin of each patient. Meanwhile, 1 patient (5.0%) experienced a postoperative complication that was unrelated to sentinel node mapping. No mortality was recorded among enrolled cases. CONCLUSIONS Sentinel node mapping with visible light fluorescence was a feasible method for visualizing sentinel nodes in patients with early gastric cancer. In addition, this method is advantageous in terms of visualizing the concrete relationship between the sentinel nodes and surrounding structures.
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Olsen S, Jin L, Fields RC, Yan Y, Nalbantoglu ILK. Tumor budding in intestinal-type gastric adenocarcinoma is associated with nodal metastasis and recurrence. Hum Pathol 2017; 68:26-33. [PMID: 28428104 DOI: 10.1016/j.humpath.2017.03.021] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 03/14/2017] [Accepted: 03/30/2017] [Indexed: 02/07/2023]
Abstract
Gastric adenocarcinoma (GAC) is a common cause of cancer-related death worldwide. GAC can be classified as intestinal or diffuse. Intestinal-type cancers are common and reported to have a better prognosis compared to diffuse cancers. Studies have shown the presence and amount of tumor budding in intestinal carcinomas of the colon and esophagus to predict nodal metastasis and recurrence. Our aim is to determine if tumor budding in intestinal-type GAC correlates with prognostic features. One hundred four patients treated with primary surgical excision between 1999 and 2013 were identified. Histologic type (intestinal, diffuse, or mixed), tumor grade, T-stage, and lymph node status were evaluated. Tumor bud scores were assigned to all intestinal-type cancers using methods previously described for colorectal adenocarcinoma. Scores of <1 were designated as low and ≥1 as high. Tumor characteristics were as follows: 52 intestinal (50%), 36 diffuse (35%), and 16 mixed (15%). Of the 52 cases with intestinal histology, 4 were well (8%), 28 were moderately (54%), and 20 were poorly differentiated (38%). Thirty-three (63%) of the intestinal tumors had high tumor bud scores. Cases with high scores were associated with higher T-stage, N-stage, and grade (P<.001, P<.001, and P=.002). These also had a higher likelihood of recurrence (P=.007). In our cohort, high tumor bud scores in intestinal-type GAC have higher T-stage, N-stage, grade, and likelihood of recurrence. Assessment of tumor budding may guide clinical management in a subset of patients.
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Affiliation(s)
- Stephen Olsen
- Department of Pathology and Immunology, Washington University in St Louis, St Louis, MO, 63110, USA.
| | - Linda Jin
- Department of Surgery, Washington University in St Louis, St Louis, MO, 63110, USA.
| | - Ryan C Fields
- Department of Surgery, Washington University School of Medicine, St Louis, MO 63110.
| | - Yan Yan
- Departments of Surgery and Biostatistics, Washington University in St Louis, St Louis, MO, 63110, USA.
| | - ILKe Nalbantoglu
- Department of Pathology and Immunology, Washington University in St Louis, St Louis, MO, 63110, USA.
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17
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Park JW, Ahn S, Lee H, Min BH, Lee JH, Rhee PL, Kim KM, Kim JJ. Predictive factors for lymph node metastasis in early gastric cancer with lymphatic invasion after endoscopic resection. Surg Endosc 2017; 31:4419-4424. [PMID: 28378075 DOI: 10.1007/s00464-017-5490-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 02/22/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND Lymph node (LN) metastasis is found in only about 5-10% of the patients who undergo additional surgery after non-curative endoscopic resection. Lymphatic invasion after endoscopic submucosal dissection (ESD) is regarded as non-curative resection due to risk of reginal LN metastasis. This study was aimed to identify clinicopathologic predictive factors for LN metastasis in early gastric cancer (EGC) with lymphatic invasion after endoscopic resection. METHODS Among a total of 2036 patients who underwent endoscopic resection for EGC at Samsung Medical Center from April 2000 to May 2011, 146 patients were diagnosed with lymphatic invasion. And 123 patients who had gastrectomy with LN dissection due to presence of lymphatic invasion as one of the non-curative factors were included in this study. Demographics, endoscopic tumor findings, histological findings, surgical findings with pathologic reports, and follow-up data were collected from the patient's medical records. Pathological re-evaluation of resected specimens was performed. RESULTS Among a total of 123 patients, LN metastases were found in seven patients (5.7%). The univariate analysis revealed that the LN metastasis was significantly more frequent in patients with certain morphology of lymphatic invasion that shows adhesion to endothelium of lymphatic tumor emboli (p = 0.016), higher number of lymphatic tumor emboli in whole section (p < 0.001) and papillary adenocarcinoma component (p = 0.024). In multivariate analysis, the number of lymphatic tumor emboli [OR 93.5, 95% CI (2.62-3330.81)] and the presence of papillary adenocarcinoma component [OR 552.5, 95% CI (1.20-254871.81)] were identified as independent predictors of LN metastasis in patients with lymphatic invasion after endoscopic resection. CONCLUSIONS The number of lymphatic tumor emboli and the presence of papillary adenocarcinoma component were significant predictors for LN metastasis in patients with lymphatic invasion after endoscopic resection.
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Affiliation(s)
- Ji Won Park
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 135-710, South Korea
| | - Sangjeong Ahn
- Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Hyuk Lee
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 135-710, South Korea
| | - Byung-Hoon Min
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 135-710, South Korea
| | - Jun Haeng Lee
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 135-710, South Korea
| | - Poong-Lyul Rhee
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 135-710, South Korea
| | - Kyoung-Mee Kim
- Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Jae J Kim
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 135-710, South Korea.
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19
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Tang XL, Lin R, Han CQ, Ding Z. Role of endoscopic ultrasonography in TNM staging of gastric cancer. Shijie Huaren Xiaohua Zazhi 2016; 24:3641-3646. [DOI: 10.11569/wcjd.v24.i25.3641] [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] [Indexed: 02/06/2023] Open
Abstract
Gastric cancer is a common malignancy that has a poor prognosis and high mortality. Cancer staging is the optimal method for evaluating prognosis. Endoscopic ultrasonography (EUS) has been considered the first-choice imaging modality for regional staging of gastric cancer because different structural layers of the gastric wall show remarkable differences in their echogenic appearance. However, the results of recent studies about the accuracy of EUS for staging of gastric cancer are contradictory. The aim of this article is to review the role of EUS in preoperative TNM staging of gastric cancer.
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20
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Park HK, Lee KY, Yoo MW, Hwang TS, Han HS. Mixed Carcinoma as an Independent Prognostic Factor in Submucosal Invasive Gastric Carcinoma. J Korean Med Sci 2016; 31:866-72. [PMID: 27247494 PMCID: PMC4853664 DOI: 10.3346/jkms.2016.31.6.866] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 03/09/2016] [Indexed: 12/12/2022] Open
Abstract
Mixed carcinoma shows a mixture of glandular and signet ring/poorly cohesive cellular histological components and the prognostic significance of each component is not fully understood. This study aimed to investigate the significance of the poorly cohesive cellular histological component as a risk factor for lymph node metastasis and to examine the diagnostic reliability of endoscopic biopsy. Clinicopathologic characteristics of 202 patients who underwent submucosal invasive gastric carcinoma resection with lymph node dissection in 2005-2012 were reviewed. Mixed carcinoma accounted for 27.2% (56/202) of cases. The overall prevalence of lymph node metastasis was 17.3% (35/202). Lymphatic invasion (P < 0.001), family history of carcinoma (P = 0.025), tumor size (P = 0.004), Lauren classification (P = 0.042), and presence of any poorly cohesive cellular histological component (P = 0.021) positively correlated with the lymph node metastasis rate on univariate analysis. Multivariate analyses revealed lymphatic invasion, family history of any carcinoma, and the presence of any poorly cohesive cellular histological component to be significant and independent factors related to lymph node metastasis. Review of preoperative biopsy slides showed that preoperative biopsy demonstrated a sensitivity of 63.6% and a specificity of 100% in detecting the presence of the poorly cohesive cellular histological component, compared with gastrectomy specimens. The presence of any poorly cohesive cellular histological component was an independent risk factor associated with lymph node metastasis in submucosal invasive gastric carcinoma. Endoscopic biopsy had limited value in predicting the presence and proportion of the poorly cohesive cellular histologic component due to the heterogeneity of mixed carcinoma.
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Affiliation(s)
- Hyung Kyu Park
- Department of Pathology, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea
| | - Kyung-Yung Lee
- Department of Surgery, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea
| | - Moon-Won Yoo
- Department of Surgery, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea
| | - Tae Sook Hwang
- Department of Pathology, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea
| | - Hye Seung Han
- Department of Pathology, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea
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Hwang CS, Ahn S, Lee BE, Lee SJ, Kim A, Choi CI, Kim DH, Jeon TY, Kim GH, Song GA, Park DY. Risk of lymph node metastasis in mixed-type early gastric cancer determined by the extent of the poorly differentiated component. World J Gastroenterol 2016; 22:4020-4026. [PMID: 27099445 PMCID: PMC4823252 DOI: 10.3748/wjg.v22.i15.4020] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 12/02/2015] [Accepted: 01/18/2016] [Indexed: 02/06/2023] Open
Abstract
AIM: To predict the rate of lymph node (LN) metastasis in diffuse- and mixed-type early gastric cancers (EGC) for guidelines of the treatment.
METHODS: We reviewed 550 cases of EGC with diffuse- and mixed-type histology. We investigated the clinicopathological factors and histopathological components that influence the probability of LN metastasis, including sex, age, site, gross type, presence of ulceration, tumour size, depth of invasion, perineural invasion, lymphovascular invasion, and LN metastasis status. We reviewed all slides and estimated the proportions of each tumour component; pure diffuse type, mixed-predominantly diffuse type (diffuse > intestinal type), mixed-predominantly intestinal type (intestinal > diffuse type), and mixed diffuse = intestinal type. We calculated the extents of the respective components.
RESULTS: LN metastasis was observed in 12.9% (71/550) of early gastric cancers cases [15/288 mucosal EGCs (5.2%) and 56/262 submucosal EGCs (21.4%)]. Of 550 cases, 302 were diffuse-type and 248 were mixed-type EGCs. Of 248 mixed-type EGCs, 163 were mixed-predominantly diffuse type, 82 were mixed-predominantly intestinal type, and 3 were mixed diffuse = intestinal type. Mixed-type cases with predominantly diffuse type histology showed a higher frequency of LN metastasis (20.2%) than cases of pure diffuse type (9.3%) and predominantly intestinal type (12.2%) histology. We measured the dimensions of each component (intestinal and diffuse type) to determine the association of the extent of each component with LN metastasis in mixed-type gastric carcinoma. The total tumour size and the extent of poorly differentiated components was associated with LN metastasis, while that of signet ring cell components was not.
CONCLUSION: We recommend careful identification and quantitative evaluation of mixed-type early gastric cancer components after endoscopic resection to determine the intensity of the treatment.
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Saragoni L. Upgrading the definition of early gastric cancer: better staging means more appropriate treatment. Cancer Biol Med 2016; 12:355-61. [PMID: 26779372 PMCID: PMC4706527 DOI: 10.7497/j.issn.2095-3941.2015.0054] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Since Murakami defined early gastric cancer (EGC) as a "carcinoma limited to the gastric mucosa and/or submucosa regardless of the lymph node status", several authors have focused on the most influential histopathological parameters for predicting the development of lymph node metastases by considering the lymph node status as an important prognostic factor. A few authors have also considered the depth of invasion as one of the keys to explaining the existence of subgroups of patients affected by EGC with poor prognoses. In any case, EGC is still considered an initial phase of tumor progression with good prognosis. The introduction of modern endoscopic devices has allowed a precise diagnosis of early lesions, which can lead to improved definitions of tumors that can be radically treated with endoscopic mucosal resection or endoscopic submucosal dissection (ESD). Given the widespread use of these techniques, the Japanese Gastric Cancer Association (JGCA) identified in 2011 the standard criteria that should exclude the presence of lymph node metastases. At that time, EGCs with nodal involvement should have been asserted as no longer fitting the definition of an early tumor. Some authors have also demonstrated that the morphological growth pattern of a tumor, according to Kodama's classification, is one of the most important prognostic factors, thereby suggesting the need to report it in histopathological drafts. Notwithstanding the acquired knowledge regarding the clinical behavior of EGC, Murakami's definition is still being used. This definition needs to be upgraded according to the modern staging of the disease so that the appropriate treatment would be selected.
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Affiliation(s)
- Luca Saragoni
- Department of Pathology, G.B. Morgagni-L. Pierantoni Hospital, Forlì 47121, Italy
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23
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Yu H, Yang AM, Lu XH, Zhou WX, Yao F, Fei GJ, Guo T, Yao LQ, He LP, Wang BM. Magnifying narrow-band imaging endoscopy is superior in diagnosis of early gastric cancer. World J Gastroenterol 2015; 21:9156-9162. [PMID: 26290643 PMCID: PMC4533048 DOI: 10.3748/wjg.v21.i30.9156] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 04/10/2015] [Accepted: 05/27/2015] [Indexed: 02/06/2023] Open
Abstract
AIM: To evaluate the diagnostic effectiveness of white light endoscopy, magnifying endoscopy (ME), and magnifying narrow-band imaging endoscopy (ME-NBI) in detecting early gastric cancer (EGC).
METHODS: From March 2010 to June 2012, a total of 3616 patients received screening for gastric cancer by magnifying endoscopy. There were 3675 focal gastric lesions detected using conventional high definition white light endoscopy (HD-WLE) in four different referential hospitals that were recruited for further investigation using ME and ME-NBI. The images obtained from HD-WLE, ME, and ME-NBI were reviewed by four experienced endoscopists to evaluate their diagnostic effectiveness for EGC. The diagnosis of cancerous and non-cancerous lesions was conducted by evaluating the microvascular and microsurface patterns using the VS classification system. The final endoscopic diagnosis of each lesion was determined by consultation when a disagreement occurred. We used histopathological results as the gold standard for the diagnosis of EGC.
RESULTS: Among the 3675 lesions found, 1508 were validated by pathological findings as chronic gastritis, 1279 as chronic gastritis with intestinal metaplasia, 631 as low-grade neoplasia, and 257 as EGC. The sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of HD-WLE for the diagnosis of EGC were 71.2%, 99.1%, 85.5%, 97.9% and 97.1%, respectively. The results of ME for diagnosing EGC were 81.3%, 98.8%, 83.3%, 98.6% and 97.6%, respectively. The results of ME-NBI for the diagnosis of EGC were 87.2%, 98.6%, 82.1%, 99.0% and 97.8%, respectively. The diagnostic sensitivity and accuracy of paired ME and ME-NBI were significantly better than those of HD-WLE (P < 0.05).
CONCLUSION: HD-WLE has a relatively high accuracy for diagnosing EGC and is an effective screening tool. Further investigations of ME and ME-NBI are required to achieve superior accuracy.
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Takada J, Araki H, Onogi F, Nakanishi T, Kubota M, Ibuka T, Shimizu M, Moriwaki H. Safety and efficacy of carbon dioxide insufflation during gastric endoscopic submucosal dissection. World J Gastroenterol 2015; 21:8195-8202. [PMID: 26185394 PMCID: PMC4499365 DOI: 10.3748/wjg.v21.i26.8195] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 02/13/2015] [Accepted: 03/19/2015] [Indexed: 02/06/2023] Open
Abstract
AIM: To compare the safety and efficacy of carbon dioxide (CO2) and air insufflation during gastric endoscopic submucosal dissection (ESD).
METHODS: This study involved 116 patients who underwent gastric ESD between January and December 2009. After eliminating 29 patients who fit the exclusion criteria, 87 patients, without known pulmonary dysfunction, were randomized into the CO2 insufflation (n = 36) or air insufflation (n = 51) groups. Standard ESD was performed with a CO2 regulation unit (constant rate of 1.4 L/min) used for patients undergoing CO2 insufflation. Patients received diazepam for conscious sedation and pentazocine for analgesia. Transcutaneous CO2 tension (PtcCO2) was recorded 15 min before, during, and after ESD with insufflation. PtcCO2, the correlation between PtcCO2 and procedure time, and ESD-related complications were compared between the two groups. Arterial blood gases were analyzed after ESD in the first 30 patients (12 with CO2 and 18 with air insufflation) to assess the correlation between arterial blood CO2 partial pressure (PaCO2) and PtcCO2.
RESULTS: There were no differences in respiratory functions, median sedative doses, or median procedure times between the groups. Similarly, there was no significant difference in post-ESD blood gas parameters, including PaCO2, between the CO2 and air groups (44.6 mmHg vs 45 mmHg). Both groups demonstrated median pH values of 7.36, and none of the patients exhibited acidemia. No significant differences were observed between the CO2 and air groups with respect to baseline PtcCO2 (39 mmHg vs 40 mmHg), peak PtcCO2 during ESD (52 mmHg vs 51 mmHg), or median PtcCO2 after ESD (50 mmHg vs 50 mmHg). There was a strong correlation between PaCO2 and PtcCO2 (r = 0.66; P < 0.001). The incidence of Mallory-Weiss tears was significantly lower with CO2 insufflation than with air insufflation (0% vs 15.6%, P = 0.013). CO2 insufflation did not cause any adverse events, such as CO2 narcosis or gas embolisms.
CONCLUSION: CO2 insufflation during gastric ESD results in similar blood gas levels as air insufflation, and also reduces the incidence of Mallory-Weiss tears.
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Park SE, Kim DH, Jung HY, Lim H, Ahn JY, Choi KS, Lee JH, Choi KD, Song HJ, Lee GH, Kim JH, Han S. Risk factors and correlations of immediate, early delayed, and late delayed bleeding associated with endoscopic resection for gastric neoplasms. Surg Endosc 2015; 30:625-632. [PMID: 26091990 DOI: 10.1007/s00464-015-4250-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 05/19/2015] [Indexed: 12/13/2022]
Abstract
BACKGROUND Bleeding is a major complication following endoscopic resection (ER) of gastric mucosal lesions. We aimed to determine the risk factors for post-ER bleeding and their correlations according to the time elapsed since the procedure. METHODS We retrospectively enrolled 670 lesions in 610 patients who underwent ER between March 2009 and December 2010. We classified these lesions into three types in accordance with the bleeding time, i.e., immediate bleeding (IB), early delayed bleeding (EDB), and late delayed bleeding (LDB). We analyzed the risk factors for each bleeding type according to baseline patient characteristics, procedure-related factors, and correlations between the occurrence of each bleeding type. RESULTS There were 408 post-ER bleeding events in our study cohort: 302 IB events, 88 EDB events, and 18 LDB events. In multivariate analysis, a histologic finding of carcinoma and the resection time were significant predictors of IB (p < 0.001). Of the 302 IB events, 13.9% showed EDB. Additionally, LDB occurred in 2.4% of lesions with EDB and 4.6% of lesions without EDB. Similar to the IB group, of 368 lesions without IB, 12.5% showed EDB. In addition, LDB occurred in 2.2% of lesions with EDB and 1.2% of lesions without EDB. IB was associated with a higher risk of EDB (p < 0.001) and LDB (p < 0.001), whereas EDB was not related to an increased risk of LDB (p = 0.997). CONCLUSION IB significantly increases the risk of EDB and LDB, but EDB does not increase the risk of LDB. Histologically confirmed carcinoma or a prolonged time for resection increases the risk of post-ER IB. We recommend careful follow-up approaches following ER of a gastric mucosal lesion in high-risk patients to prevent a potentially critical occurrence of delayed bleeding.
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Affiliation(s)
- So-Eun Park
- Department of Gastroenterology, Asan Digestive Disease Research Institute, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 138-736, Korea.
| | - Do Hoon Kim
- Department of Gastroenterology, Asan Digestive Disease Research Institute, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 138-736, Korea
| | - Hwoon-Yong Jung
- Department of Gastroenterology, Asan Digestive Disease Research Institute, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 138-736, Korea
| | - Hyun Lim
- Department of Internal Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
| | - Ji Yong Ahn
- Department of Gastroenterology, Asan Digestive Disease Research Institute, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 138-736, Korea
| | - Kwi-Sook Choi
- Department of Gastroenterology, Asan Digestive Disease Research Institute, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 138-736, Korea
| | - Jeong Hoon Lee
- Department of Gastroenterology, Asan Digestive Disease Research Institute, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 138-736, Korea
| | - Kee Don Choi
- Department of Gastroenterology, Asan Digestive Disease Research Institute, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 138-736, Korea
| | - Ho June Song
- Department of Gastroenterology, Asan Digestive Disease Research Institute, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 138-736, Korea
| | - Gin Hyug Lee
- Department of Gastroenterology, Asan Digestive Disease Research Institute, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 138-736, Korea
| | - Jin-Ho Kim
- Department of Gastroenterology, Asan Digestive Disease Research Institute, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 138-736, Korea
| | - Seungbong Han
- Department of Applied Statistics, Gachon Univertisy, 1342 Seongnamdaero, Sujeong-gu, Seongnam-si, Gyeonggi-do, 461-701, Korea
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Abstract
BACKGROUND The problem is that current definitions of early gastric cancer allow the inclusion of regional lymph node metastases. The increasing use of endoscopic submucosal dissection to treat early gastric cancer is a concern because regional lymph nodes are not addressed. The aim of the study was thus to critically evaluate current evidence with regard to tumour-specific factors associated with lymph node metastases in "early gastric cancer" to develop a more precise definition and improve clinical management. METHODS A systematic and comprehensive search of major reference databases (MEDLINE, EMBASE, PubMed and the Cochrane Library) was undertaken using a combination of text words "early gastric cancer", "lymph node metastasis", "factors", "endoscopy", "surgery", "lymphadenectomy" "mucosa", "submucosa", "lymphovascular invasion", "differentiated", "undifferentiated" and "ulcer". All available publications that described tumour-related factors associated with lymph node metastases in early gastric cancer were included. RESULTS The initial search yielded 1494 studies, of which 42 studies were included in the final analysis. Over time, the definition of early gastric cancer has broadened and the indications for endoscopic treatment have widened. The mean frequency of lymph node metastases increased on the basis of depth of infiltration (mucosa 6% vs. submucosa 28%), presence of lymphovascular invasion (absence 9% vs. presence 53%), tumour differentiation (differentiated 13% vs. undifferentiated 34%) and macroscopic type (elevated 13% vs. flat 26%) and tumour diameter (≤2 cm 8% vs. >2 cm 25%). CONCLUSION There is a need to re-examine the diagnosis and staging of early gastric cancer to ensure that patients with one or more identifiable risk factor for lymph node metastases are not denied appropriate chemotherapy and surgical resection.
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Affiliation(s)
- Savio G Barreto
- Department of Gastrointestinal Surgery, Gastrointestinal Oncology, and Bariatric Surgery, Medanta Institute of Digestive and Hepatobiliary Sciences, Medanta, The Medicity, Gurgaon, India.
| | - John A Windsor
- HBP/Upper GI Unit, Department of General Surgery, Auckland City Hospital, Auckland, New Zealand.
- Department of Surgery, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand.
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Sedef AM, Köse F, Sümbül AT, Doğan Ö, Beşen AA, Tatlı AM, Mertsoylu H, Sezer A, Muallaoğlu S, Özyılkan Ö, Abalı H. Patients with distal intestinal gastric cancer have superior outcome with addition of taxanes to combination chemotherapy, while proximal intestinal and diffuse gastric cancers do not: does biology and location predict chemotherapy benefit? Med Oncol 2015; 32:476. [DOI: 10.1007/s12032-014-0476-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 12/19/2014] [Indexed: 01/26/2023]
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Yu CH, Jeon SW, Kim SK, Lee HS, Heo J, Kwon YH, Kim GY, Kim SZ, Bae HI. Endoscopic resection as a first therapy for gastric epithelial atypia: is it reasonable? Dig Dis Sci 2014; 59:3012-20. [PMID: 24927801 DOI: 10.1007/s10620-014-3249-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Accepted: 06/04/2014] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND AIMS Gastric atypical cell (GAC), an indefinite pathologic finding, often requires repeated biopsy or other diagnostic treatments, such as endoscopic mucosal resection (EMR), endoscopic submucosal dissection (ESD), or operation (OP). The aim of this study was to analyze the initial endoscopic and histologic findings of GAC and to discuss the necessity of EMR/ESD at establishing a correct diagnosis. METHODS This retrospective study enrolled 96 patients proven as GAC on index forceps biopsy. ESD (17/96, 17.7%), EMR (5/96, 5.2%), OP (20/96, 20.8%), and other treatment or follow-up (54/96, 56.3%) were performed. We analyzed the initial endoscopic and histologic characteristics of GAC lesions, predictive of neoplasm. RESULTS After diagnostic modalities, the final pathologic diagnoses were cancer (36/96, 37.6%), dysplasia (9/96, 9.4%), and non-neoplasm (51/96, 53.0%). In univariate analysis, age [odds ratio (OR) 1.04, 95% confidence interval (CI) 1.01-1.07], lesion size of 10 mm or greater (OR 3.94, 95% CI 1.61-9.61), lesion with depressed type (OR 2.50, 95% CI 1.09-5.72), and presence of H. pylori (OR 2.83, 95% CI 1.11-7.25) were risk factors for neoplasm. In multivariate analysis, lesion size of 10 mm or greater (OR 3.63, 95% CI 1.23-10.66), lesion with depressed type (OR 2.86, 95% CI 1.11-7.38) were independent risk factors for cancer. CONCLUSION Considering the neoplastic risk of GAC, which could be missed on biopsy, more comprehensive tissue sampling via EMR/ESD might be necessary to establish a definite diagnosis.
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Affiliation(s)
- Chung Hoon Yu
- Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, Republic of Korea
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Takada J, Araki H, Onogi F, Nakanishi T, Kubota M, Ibuka T, Shimizu M, Moriwaki H. Safety of carbon dioxide insufflation during gastric endoscopic submucosal dissection in patients with pulmonary dysfunction under conscious sedation. Surg Endosc 2014; 29:1963-9. [PMID: 25318364 DOI: 10.1007/s00464-014-3892-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Accepted: 09/08/2014] [Indexed: 12/16/2022]
Abstract
BACKGROUND Carbon dioxide (CO2) insufflation is effective for gastric endoscopic submucosal dissection (ESD). However, its safety is unknown in patients with pulmonary dysfunction. This study aimed to investigate the safety of CO2 insufflation during gastric ESD in patients with pulmonary dysfunction under conscious sedation. METHODS We analyzed 322 consecutive patients undergoing ESD using CO2 insufflation (1.4 L/min) for gastric lesions. Pulmonary dysfunction was defined as a forced expiratory volume in 1.0 s/forced vital capacity (FEV1.0%) <70% or vital capacity <80%. Transcutaneous partial pressure of CO2 (PtcCO2) was recorded before, during, and after ESD. RESULTS In total, 127 patients (39%) had pulmonary dysfunction. There were no significant differences in baseline PtcCO2 before ESD, peak PtcCO2 during ESD, and median PtcCO2 after ESD between the pulmonary dysfunction group and normal group. There was a significant correlation between PtcCO2 elevation from baseline and ESD procedure time (r = 0.22, P < 0.05) only in the pulmonary dysfunction group. In patients with FEV1.0% <60%, the correlation was much stronger (r = 0.39, P < 0.05). Neither the complication incidences nor the hospital stay differed between the two groups. CO2 narcosis or gas embolism was not reported in either group. CONCLUSIONS CO2 insufflation during gastric ESD in patients with pulmonary dysfunction under conscious sedation is safe with regard to complication risk and hospital stay. However, in patients with severe obstructive lung disease, especially in those with FEV1.0% <60%, longer procedure time may induce CO2 retention, thus requiring CO2 monitoring.
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Affiliation(s)
- Jun Takada
- Department of Gastroenterology/Internal Medicine, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan,
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Her2+ and b-HCG Producing Undifferentiated Gastric Adenocarcinoma. Case Rep Med 2014; 2014:268919. [PMID: 25349615 PMCID: PMC4198811 DOI: 10.1155/2014/268919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Accepted: 09/23/2014] [Indexed: 12/24/2022] Open
Abstract
A 25-year-old Hispanic female with a history of anemia, schizoaffective disorder, and psychosis was admitted for anemia associated with fatigue, weakness, shortness of breath, night sweats, weight loss, and abdominal and lower back pain for the past two months. On routine management, she was found to have a positive serum b-HCG of 80.4 (0–5 mIU/mL) but the patient denied any sexual activity in her life. During her admission, U/S of the pelvis was noncontributory. CT angiogram of the chest was significant for prominent mediastinal and hilar lymph nodes, diffusely thickened stomach suggesting gastric malignancy with multiple hypoenhancing lesions in the liver and diffuse lytic lesions in the spine and sacrum suspicious for metastatic disease. The MRI of the abdomen confirmed the CT angiogram findings. After these findings, EGD was performed which showed lesions in the antrum, body of the stomach, fundus, and cardia on the lesser curvature of the stomach body correlating with carcinoma. The biopsy was positive for Her2, b-HCG producing poorly differentiated gastric adenocarcinoma. Patient underwent one successful round of chemotherapy with Taxotene, Cisplatin, and 5-FU for Stage IV gastric adenocarcinoma.
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[Endolifter, a new tool for safe and rapid submucosal endoscopic dissection]. REVISTA DE GASTROENTEROLOGÍA DE MÉXICO 2014; 79:161-5. [PMID: 25028055 DOI: 10.1016/j.rgmx.2014.05.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Accepted: 05/21/2014] [Indexed: 02/06/2023]
Abstract
BACKGROUND The effectiveness of endoscopic submucosal dissection (ESD) is similar to that of surgery in the treatment of early lesions. The technique requires a high level of technical skill. Training on biologic models and the mastering of accessories facilitate ESD. AIMS The aim was to evaluate the usefulness of the Endolifter in facilitating tissue exposure during ESD in an in vivo porcine model performed at the experimental surgery laboratory of the School of Medicine at the Universidad de São Paulo in Brazil. MATERIAL AND METHOD A study with an experimental design employing an in vivo porcine model was conducted on 5 Yorkshire pigs weighing 20-25kg. ESDs were performed using the Endolifter. Mucosal layer dissection was carried out with a dual knife and IT knife and all the endoscopic procedures were performed by a single expert endoscopist. RESULTS A total of 25 ESDs were performed, with a technical success rate of 100%. The mean dissection time was 12.34min (range: 10.40-14.50 min) and the mean lesion size was 2.7cm (range: 2.3-3.2cm). There were no episodes of bleeding or perforations during the procedures. CONCLUSIONS The Endolifter enables rapid and effective ESDs to be carried out. It is an applicable and easy-to-use device that can be manipulated by a single operator.
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Sato-Uemura R, Christiano-Sakai M, Duarte-Jordão R, Guimarães-Horneaux de Moura E, Velázquez-Aviña J, Sobrino-Cossío S, Sakai P. Endolifter, a new tool for safe and rapid submucosal endoscopic dissection. REVISTA DE GASTROENTEROLOGÍA DE MÉXICO 2014. [DOI: 10.1016/j.rgmxen.2014.09.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Abstract
INTRODUCTION Gastric cancer is the fourth most common cancer and the second leading cause of death from cancer. Only complete resection of all gross disease with negative microscopic margins (R0 resection) provides a long-term survival benefit, and the overall 5-year relative survival rate is approximately 20%. To improve survival and quality of life, new therapeutic approaches have been introduced. MATERIAL AND METHODS A total of 277 patients (171 men, 106 women) were included in this analysis. The results from the preoperative EUS and MDCT were compared to the postoperative pathological findings. A radial scanning ultrasonic endoscope was used. In patients with early gastric cancer, especially in cases confined to mucosa, endoscopic resection is performed to avoid unnecessary surgical procedures. To achieve R0 resection for locally-advanced gastric cancer, neoadjuvant treatments have been investigated. RESULTS AND DISCUSSION Laparoscopic surgery has been shown to improve quality of life for both early and locally advanced gastric cancer. Endoscopic ultrasonography (EUS), which is considered to be the most precise method for locoregional staging, was commonly used for differentiating mucosal lesions from submucosal lesions. By contrast, computed tomography (CT) was used to detect the presence of distant metastasis. The difference in accuracy between the < or = 20-mm group and other groups was statistically significant for both EUS and MDCT (P = 0.026 and P = 0.044, respectively). CONCLUSION However, recent technological advances with the helical and multi-detector scanners have provided better CT performance.
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Affiliation(s)
- Amila Mehmedović
- Clinic for Gastroenterology and Hepatology, Clinical Centre University of Sarajevo, Sarajevo, Bosnia and Herzegovina
- Corresponding author: Amila Mehmedovic, MD. E-mail:
| | - Rusmir Mesihović
- Clinic for Gastroenterology and Hepatology, Clinical Centre University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Aida Saray
- Clinic for Gastroenterology and Hepatology, Clinical Centre University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Nenad Vanis
- Clinic for Gastroenterology and Hepatology, Clinical Centre University of Sarajevo, Sarajevo, Bosnia and Herzegovina
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Min YW, Min BH, Lee JH, Kim JJ. Endoscopic treatment for early gastric cancer. World J Gastroenterol 2014; 20:4566-4573. [PMID: 24782609 PMCID: PMC4000493 DOI: 10.3748/wjg.v20.i16.4566] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 12/09/2013] [Accepted: 01/15/2014] [Indexed: 02/06/2023] Open
Abstract
Gastric cancer remains one of the most common causes of cancer death. However the proportion of early gastric cancer (EGC) at diagnosis is increasing. Endoscopic treatment for EGC is actively performed worldwide in cases meeting specific criteria. Endoscopic mucosal resection can treat EGC with comparable results to surgery for selected cases. Endoscopic submucosal dissection (ESD) increases the en bloc and complete resection rates and reduces the local recurrence rate. ESD has been performed with expanded indication and is expected to be more widely used in the treatment of EGC through the technological advances in the near future. This review will describe the techniques, indications and outcomes of endoscopic treatment for EGC.
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Abstract
In Europe, endoscopic mucosal resection (EMR) is widely accepted as an appropriate diagnostic approach to obtain specimens for accurate histopathologic evaluation, which may change grading and local staging of early neoplasia determined by prior biopsies and imaging. In contrast to EMR, endoscopic submucosal dissection (ESD) allows resection of even large lesions in a single piece. Evidence on the clinical value of ESD is still limited and mainly based on data from Japan, and may not be directly applicable to Europe, where the outcome of ESD may be less favorable because of the limited Western expertise in this challenging technique.
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Affiliation(s)
- Horst Neuhaus
- Department of Internal Medicine, Evangelisches Krankenhaus Düsseldorf, Teaching Hospital of the University of Düsseldorf, Kirchfeldstrasse 40, Düsseldorf 40217, Germany.
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Feng XY, Wang W, Luo GY, Wu J, Zhou ZW, Li W, Sun XW, Li YF, Xu DZ, Guan YX, Chen S, Zhan YQ, Zhang XS, Xu GL, Zhang R, Chen YB. Comparison of endoscopic ultrasonography and multislice spiral computed tomography for the preoperative staging of gastric cancer - results of a single institution study of 610 Chinese patients. PLoS One 2013; 8:e78846. [PMID: 24223855 PMCID: PMC3815220 DOI: 10.1371/journal.pone.0078846] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Accepted: 09/16/2013] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND This study compared the performance of endoscopic ultrasonography (EUS) and multislice spiral computed tomography (MSCT) in the preoperative staging of gastric cancer. METHODOLOGY/PRINCIPAL FINDINGS A total of 610 patients participated in this study, all of whom had undergone surgical resection, had confirmed gastric cancer and were evaluated with EUS and MSCT. Tumor staging was evaluated using the Tumor-Node-Metastasis (TNM) staging and Japanese classification. The results from the imaging modalities were compared with the postoperative histopathological outcomes. The overall accuracies of EUS and MSCT for the T staging category were 76.7% and 78.2% (P=0.537), respectively. Stratified analysis revealed that the accuracy of EUS for T1 and T2 staging was significantly higher than that of MSCT (P<0.001 for both) and that the accuracy of MSCT in T3 and T4 staging was significantly higher than that of EUS (P<0.001 and 0.037, respectively). The overall accuracy of MSCT was 67.2% when using the 13th edition Japanese classification, and this percentage was significantly higher than the accuracy of EUS (49.3%) and MSCT (44.6%) when using the 6th edition UICC classification (P<0.001 for both values). CONCLUSIONS/SIGNIFICANCE Our results demonstrated that the overall accuracies of EUS and MSCT for preoperative staging were not significantly different. We suggest that a combination of EUS and MSCT is required for preoperative evaluation of TNM staging.
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Affiliation(s)
- Xing-yu Feng
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Department of Gastric and Pancreatic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Wei Wang
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Department of Gastric and Pancreatic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Guang-yu Luo
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Department of Endoscopy and Laser, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Jing Wu
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Department of Interventional Radiology and Medical Imaging, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Zhi-wei Zhou
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Department of Gastric and Pancreatic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Wei Li
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Department of Gastric and Pancreatic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Xiao-wei Sun
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Department of Gastric and Pancreatic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yuan-fang Li
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Department of Gastric and Pancreatic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Da-zhi Xu
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Department of Gastric and Pancreatic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yuan-xiang Guan
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Department of Gastric and Pancreatic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Shi Chen
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Department of Gastric and Pancreatic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - You-qing Zhan
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Department of Gastric and Pancreatic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Xiao-shi Zhang
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Department of Melanoma Medical Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China;
| | - Guo-liang Xu
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Department of Endoscopy and Laser, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Rong Zhang
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Department of Interventional Radiology and Medical Imaging, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Ying-bo Chen
- State Key Laboratory of Oncology in South China, Guangzhou, China
- Department of Gastric and Pancreatic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
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Abstract
OBJECTIVE Endoscopic submucosal dissection (ESD) has been found to be effective and safe for endoscopic removal of early gastric neoplasia in large Asian series. However, few data are available on the use of ESD in western countries. We assessed the efficacy of ESD performed in patients with early gastric neoplastic lesions. METHODS We analyzed prospectively collected data of consecutive patients who underwent the ESD procedure for gastric neoplasia at a single Italian center. Procedure-related outcomes, including complete histological resection rate (i.e. R0 resection), immediate and late complication rate, procedure-related mortality, and follow-up were evaluated. RESULTS Forty-two patients underwent gastric ESD. The en-bloc removal of lesions was successful in all cases, whereas R0 was achieved in 39 (92.8%) patients. A bleeding episode was observed in three (7.1%) patients, which was successfully managed by endoclip positioning. No perforations and procedure-related deaths were observed. The median follow-up period was 19 months (range: 9-53). A small residue of adenomatous lesion and a recurrent dysplastic lesion were removed by endoscopic mucosal resection in two (5%) patients. CONCLUSION Our data are comparable with those of larger Asian series. Use of ESD for removal of gastric neoplastic lesions should be implemented in western countries.
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Techniques of endoscopic submucosal dissection: application for the Western endoscopist? Gastrointest Endosc 2013; 78:677-88. [PMID: 24021491 DOI: 10.1016/j.gie.2013.07.033] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Accepted: 07/18/2013] [Indexed: 12/13/2022]
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Early gastric cancer: diagnosis, staging, and clinical impact. Evaluation of 530 patients. New elements for an updated definition and classification. Gastric Cancer 2013; 16:549-54. [PMID: 23423491 DOI: 10.1007/s10120-013-0233-2] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2012] [Accepted: 12/23/2012] [Indexed: 02/07/2023]
Abstract
BACKGROUND The prevention and early diagnosis of gastric cancer permit clinicians to discover the tumor in the initial phase, during which time it can be completely eradicated, endoscopically or surgically. Since Murakami gave the definition of early gastric cancer (EGC) in 1971, many authors have identified various subtypes of EGC with different morphological characteristics and clinical behaviour. METHODS We evaluated retrospectively 530 patients: the median follow-up time was 10.4 months (range 0.3-29.2). All tumors were classified according to the macroscopic and microscopic criteria proposed by the Japanese Society of Gastroenterology and Endoscopy and Lauren, respectively. The infiltrative growth pattern was evaluated according to Kodama's classification. Only tumor-related death was considered as an endpoint of interest for the survival analysis. RESULTS The overall survival rates of our patients were 94 % (95 % CI, 92-96) and 90 % (95 % CI, 87-93) at 5 and 10 years, respectively. Only 44 patients (8.3 %) died of the disease. Kodama's type (p < 0.0001), lymph node status, both for number and pathological stage according to the 7th Edition of TNM (p < 0.0001), and depth of infiltration (p = 0.0006) were significant prognostic factors in univariate analysis. The multivariate analysis identified Kodama's PENA type (HR, 3.91; 95 % CI, 2.08-7.33; p < 0.0001) and lymph node status for more than three positive nodes versus negative nodes (HR, 12.78; 95 % CI, 5.37-30.43; p < 0.0001) as the only independent prognostic factors in our series. CONCLUSION Lymph node status, especially when more than three lymph nodes are involved, is the most important prognostic factor in EGC. However, it is also important to evaluate the infiltrative growth pattern of the cancers in their early phase according to Kodama's classification, considering PEN A type lesions to be more aggressive than the other EGC types. Then, we propose new elements for an updated definition and classification of EGC, with an important clinical impact on the treatment of patients.
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Abstract
Given its morbidity and mortality, the early detection and diagnosis of gastric cancer is an area of intense research focus. This article reviews the emerging use of enhanced endoscopic imaging technologies in the detection and management of gastric cancer. The combined use of white-light endoscopy with enhanced imaging technologies, such as magnification narrow-band imaging, chromoendoscopy, and autofluorescence endoscopy, demonstrates promise in the improved ability to detect and delineate gastric neoplasia. However, widespread clinical use is still limited, mainly because of the restricted availability of the technologies.
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Affiliation(s)
- Susana Gonzalez
- Henry D. Janowitz Division of Gastroenterology, Mount Sinai School of Medicine, One Gustave L. Levy Place, Box 1069, New York, NY 10029, USA.
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Ren W, Yu J, Zhang ZM, Song YK, Li YH, Wang L. Missed diagnosis of early gastric cancer or high-grade intraepithelial neoplasia. World J Gastroenterol 2013; 19:2092-2096. [PMID: 23599630 PMCID: PMC3623988 DOI: 10.3748/wjg.v19.i13.2092] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Accepted: 02/06/2013] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the causes of missed diagnosis of early gastric cancer (EGC) or high-grade intraepithelial neoplasia (HGIN) in Chongqing, China.
METHODS: The present study summarizes 103 cases of EGC/HGIN detected by esophagogastroduodenoscopy (EGD) and pathological analysis from January 2010 to December 2011. Dimethyl silicone oil was administrated orally 15 min before the EGD procedures. The stomach was cleaned by repeated washing with saline when the gastroscope entered the stomach cavity. Suspected EGC lesions were subject to conventional biopsy sampling and pathological examinations. The correlation between lesion locations, endoscopic morphology of cancerous sites, training level of the examiners, pathological biopsies, and missed diagnosis was analyzed.
RESULTS: Twenty-three cases were missed among the 103 cases (22.23%) of EGC/HGIN. The rate of missed EGC in the gastroesophageal junction (8/19, 42.1%) was significantly higher than at other sites (15/84, 17.86%) (χ2 = 5.253, P = 0.022). In contrast, the rate of missed EGC in the lower stomach body (2/14, 14.29%) was lower than at other sites (21/89, 23.6%), but there were no significant differences (χ2 = 0.289, P = 0.591). The rate of missed EGC in the gastric antrum (5/33, 15.15%) was lower than at other sites (18/70, 25.71%), but there were no significant differences (χ2 = 1.443, P = 0.230). Endoscopists from less prestigious hospitals were more prone to not diagnosing EGC than those from more prestigious hospitals (χ2 = 4.261, P = 0.039). When the number of biopsies was < 4, the rate of missed diagnosis was higher (20/23, 89.96%) than for when there were > 4 biopsies (3/23, 13.04%) (P < 0.001). In addition, there was no significant difference in the rate of missed diagnosis in patients with 1-3 biopsy specimens (χ2 = 0.141, P = 0.932).
CONCLUSION: Endoscopists should have a clear understanding of the anatomical characteristics of the esophagus/stomach, and endoscopic identification of early lesions increases with the number of biopsies.
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Li B, Zheng P, Zhu Q, Lin J. Accurate preoperative staging of gastric cancer with combined endoscopic ultrasonography and PET-CT. TOHOKU J EXP MED 2013; 228:9-16. [PMID: 22864063 DOI: 10.1620/tjem.228.9] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Accurate staging of gastric cancer is helpful to determine the most appropriate therapy, but no staging modality has been accepted as the standard. Objective is to evaluate the usefulness of endoscopic ultrasonograph (EUS) combined with position emission tomography and computed tomograph (PET-CT) in gastric cancer staging. A total of 124 patients confirmed with gastric cancer were subjected to staging with EUS and PET-CT scanning. The detection rate of primary tumor was 99.2% by combination use of two modalities and 97.6% by EUS alone (p = 0.6219), but the detection rate was 90.3% (112 of 124) by PET-CT alone (compared with the combination, p = 0.0027; compared with EUS alone, p = 0.0299). The locoregional lymph node invasion was identified in 84/124 (67.7%) by combined PET-CT and EUS, which was obviously higher than that with EUS (52.4%) or PET-CT (43.5%) alone (p = 0.0194 and p = 0.0002, respectively). There was no statistical difference in identification of celiac axis lymph node metastasis among three methods, but the combined examination or PET-CT alone was more effective than EUS alone in the detection of distant metastases (all p < 0.01). Furthermore, the combined EUS and PET-CT was more optimal than using EUS or PET-CT alone in the accurate T and N staging and the effect on change of treatment. The present study indicates that the combination of EUS and PET-CT is an ideal modality in the preoperative staging of gastric cancer and it provides beneficial guidance for the treatment of gastric cancer.
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Affiliation(s)
- Baiwen Li
- Department of Gastroenterology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, PR China.
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Abstract
Since the concept of early gastric cancer was first described in Japan in 1962, its treatment has evolved from curative surgical resection to endoscopic resection, initially with polypectomy to more recently with endoscopic submucosal dissection. As worldwide experience with these endoscopic techniques evolve and gain acceptance, studies have confirmed its comparable effectiveness with historical surgical outcomes in carefully selected patients. The criteria for endoscopic resection have expanded to offer more patients improved quality of life, avoiding the morbidity and mortality associated with surgery. This article summarizes the evolutional role of endoscopic and surgical therapy in early gastric cancer.
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Affiliation(s)
- Wataru Tamura
- Division of Gastroenterology & Hepatology, University of Colorado Denver Anschutz Medical Campus, Aurora, CO 80045, USA
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Abstract
Helicobacter pylori infection remains common worldwide and is significantly associated with gastric adenocarcinoma and gastric mucosa-associated lymphoid tissue (MALT)lymphoma. This article reviews recent developments in the field of H. pylori with an emphasis on mechanisms of carcinogenesis, and the bacterial, environmental and host factors that may alter risk of developing gastric cancer or gastric MALT lymphoma. The topic of eradication of H. pylori to prevent the development of malignancy and the possibility of a vaccine against H. pylori are also explored.
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Affiliation(s)
- Abhishek Bhandari
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0063, USA.
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Schumacher B, Charton JP, Nordmann T, Vieth M, Enderle M, Neuhaus H. Endoscopic submucosal dissection of early gastric neoplasia with a water jet-assisted knife: a Western, single-center experience. Gastrointest Endosc 2012; 75:1166-74. [PMID: 22482915 DOI: 10.1016/j.gie.2012.02.027] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2011] [Accepted: 02/13/2012] [Indexed: 02/08/2023]
Abstract
BACKGROUND Endoscopic submucosal dissection (ESD) of early gastric neoplasia has not yet been established in Western countries because of a lack of data and the difficult, time-consuming, and hazardous nature of the method. Some of the technical limitations may be overcome by use of a water jet-assisted knife, which allows a combination of a high-pressure water jet and electrosurgical interventions. OBJECTIVE To evaluate the efficacy and safety of water jet-assisted ESD (WESD) with a water jet-assisted knife in selected patients with early gastric neoplasia. DESIGN Single-center, prospective study. PATIENTS This study involved 29 consecutive patients (13 female; median age 61 years; age range 35-93 years) with early gastric neoplasia that met the expanded criteria of the Japanese Gastric Cancer Association. Histology of biopsies had shown gastric adenocarcinoma in 21 cases, adenoma in 8 case, and suspicion of a GI stromal tumor in 1 case. The median maximal diameter of the lesions was 20 mm (range 10-40 mm). INTERVENTION All procedures were done with patients under sedation with propofol. The water jet-assisted knife was used for setting coagulation markers around the neoplastic lesions, then for circumferential incision and dissection in combination with repeated submucosal injection of saline solution with a water jet system. Bleeding was treated with diathermia by use of the water jet-assisted knife or hemostatic forceps in case of failure or larger vessels. Clips were used for closure of perforations. MAIN OUTCOME MEASUREMENTS Complete resection of neoplasia, procedure time, complication and recurrence rates. RESULTS According to endoscopic criteria, complete resection of the targeted area could be achieved in all cases, with an en bloc resection rate of 90%. The median procedure duration was 74 minutes (range 15-402 minutes). Exchange of the device was needed in only 10 cases because of severe bleeding from larger vessels, which could be managed by use of hemostatic forceps. The 30-day morbidity rate was 4 of 30 (13.8%) because of postprocedure pain in 3 cases and delayed bleeding in 1 case. A 93-year-old patient died the night after WESD without evidence of a procedure-related complication. Histology of the resected specimens showed adenocarcinoma in 20 cases, adenoma in 7, no neoplasia in 2, and a plasmacytoma in 1. Complete resection (R0) was histologically confirmed in 18 of 28 patients (64.3%) with resected neoplastic specimens. A horizontal or vertical neoplasia-free margin could not be confirmed in 9 cases and 1 case, respectively. Complete local remission of neoplasia was achieved in 25 of 28 patients (89.3%) who were followed over a median period of 22 months (range 6-44 months). In 1 patient, a metachronous gastric adenocarcinoma was identified 54 weeks after initial WESD. LIMITATIONS Noncontrolled study with a limited number of patients. CONCLUSION The use of a water jet-assisted knife simplifies ESD because exchange of devices is rarely needed. WESD promises to be effective and safe. The study demonstrates that the high rates of en bloc resection of early gastric neoplasia reported in Asia can be reproduced in Western referral centers. However, histology may not always confirm complete resection of horizontal tumor margins. In spite of the unfavorable histology results, the high rate of complete local remission of neoplasia promises that surgical treatment of early gastric neoplasia can be avoided in the majority of cases.
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Affiliation(s)
- Brigitte Schumacher
- Department of Gastroenterology, EVK Evangelisches Krankenhaus Düsseldorf, Germany
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Inoue H, Ikeda H, Hosoya T, Yoshida A, Onimaru M, Suzuki M, Kudo SE. Endoscopic mucosal resection, endoscopic submucosal dissection, and beyond: full-layer resection for gastric cancer with nonexposure technique (CLEAN-NET). Surg Oncol Clin N Am 2012; 21:129-40. [PMID: 22098836 DOI: 10.1016/j.soc.2011.09.012] [Citation(s) in RCA: 136] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Mucosal cancer in the gastrointestinal tract generally has low risk of lymph node metastasis. Endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD) are techniques of local excision of neoplasia confined to the mucosal layer. Specimens from EMR/ESD contribute to several diagnoses, and histologic results affect treatment decisions. A combined laparoscopic and endoscopic approach to neoplasia with a nonexposure technique allows full-thickness resection of the stomach wall without exposing the gastric lumen to the peritoneal cavity, preventing cancer cell dissemination to the peritoneal cavity. This article reviews EMR/ESD and describes a new full-thickness resection method using the nonexposure technique (CLEAN-NET).
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Affiliation(s)
- Haruhiro Inoue
- Showa University International Training Center for Endoscopy, Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan.
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Endoscopic treatment of large colorectal tumors: comparison of endoscopic mucosal resection, endoscopic mucosal resection-precutting, and endoscopic submucosal dissection. Surg Endosc 2012; 26:2220-30. [PMID: 22278105 DOI: 10.1007/s00464-012-2164-0] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2011] [Accepted: 01/04/2012] [Indexed: 12/12/2022]
Abstract
BACKGROUND Endoscopic mucosal resection (EMR) is a useful therapeutic technique for colorectal tumors. However, for tumors larger than 20 mm, the chance of piecemeal resection is high. Recently introduced endoscopic submucosal dissection (ESD) enables en bloc resection regardless of the tumor size. This study aimed to compare the effectiveness and outcomes of EMR, EMR-precutting (EMR-P), and ESD in the treatment of colorectal tumors 20 mm in size or larger. METHODS This study reviewed 523 nonpedunculated colorectal tumors (499 patients) 20 mm or larger that received endoscopic treatment (EMR in 140 cases, EMR-P in 69 cases, and ESD in 314 cases) from January 2004 to November 2009. RESULTS The mean sizes of the tumors were 21.7 ± 3.5 mm (EMR), 23.5 ± 5.6 mm (EMR-P), and 28.9 ± 12.7 mm (ESD). The ratios of adenocarcinomas were 15.7% (EMR), 29% (EMR-P), and 37.9% (ESD). The en bloc resection rates were 42.9% (EMR), 65.2% (EMR-P), and 92.7% (ESD), and the complete resection rates were 32.9% (EMR), 59.4% (EMR-P), and 87.6% (ESD). Perforation occurred in 2.9% of the EMR-P cases and 8% of the ESD cases. The recurrence rates were 25.9% (EMR; median follow-up period, 26 months), 3.2% (EMR-P; median follow-up period, 16 months), and 0.8% (ESD; median follow-up period, 17 months). CONCLUSION For the treatment of large, nonpedunculated colorectal tumors, ESD is more effective than either EMR or EMR-P. Although ESD is technically demanding, it has clinical significance by overcoming the limitations of both EMR and EMR-P.
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Choi JH, Kim ER, Min BH, Choi D, Kang KJ, Lee JH, Rhee PL, Kim JJ, Rhee JC. The feasibility and safety of the endoscopic submucosal dissection of superficial gastric neoplastic lesions in patients with compensated liver cirrhosis: a retrospective study. Gut Liver 2012; 6:58-63. [PMID: 22375172 PMCID: PMC3286740 DOI: 10.5009/gnl.2012.6.1.58] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2011] [Revised: 06/13/2011] [Accepted: 06/18/2011] [Indexed: 02/06/2023] Open
Abstract
Background/Aims When undergoing endoscopic submucosal dissection (ESD), patients with liver cirrhosis (LC) may suffer from a high risk of bleeding, bacteremia and tissue vulnerability. There have been few reports evaluating the efficacy and safety of ESD in patients with LC. Methods From January 2004 to March 2010, 23 patients with LC (cirrhosis group) underwent ESD for superficial gastric neoplastic lesions. The number of patients with a liver function in the Child-Pugh classes A and B were 20 and 3, respectively. The clinical outcomes and complications were compared with 69 patients without LC (control group) that were matched for age and sex. Results The en bloc resection, R0 resection and en bloc plus R0 resection rates of the cirrhosis group were 82.6%, 91.3%, and 82.6%, respectively, and did not show significant differences from the rates of the control group. No local recurrence was found in either group during the follow-up period. The procedure length of time (41.0 vs 39.0 minutes), rate of bleeding (4.3% vs 7.2%) and rate of perforation (0.0% vs 1.4%) in the cirrhosis group were also comparable to the results from the control group. Conclusions ESD was safely performed in patients with LC, and satisfactory outcomes were achieved with high en bloc and R0 resection rates for superficial gastric neoplastic lesions.
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Affiliation(s)
- Jong Hak Choi
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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50
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Feng Q, Ge ZZ. Advances in treatment of early gastric cancer by endoscopic submucosal dissection. Shijie Huaren Xiaohua Zazhi 2011; 19:2031-2035. [DOI: 10.11569/wcjd.v19.i19.2031] [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] [Indexed: 02/06/2023] Open
Abstract
As a result of the emergence and application of magnifying chromoendoscopy, narrow band imaging, confocal laser endoscopy and the enhancement of the awareness of malignant tumors, more and more people have been diagnosed with gastric cancer at early stages. The postoperative five-year survival rate for early gastric cancer (EGC) can reach as high as 90%. Since the emergence of endoscopic submucosal dissection (ESD), its advantage in the treatment of EGC has become more and more evident due to definite therapeutic effect, less physical trauma, high safety, excellent patient compliance, and low therapeutic cost. This paper focuses on the clinical application of ESD in the management of EGC.
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