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Advances in the Diagnosis and Treatment of Appendiceal Mucinous Neoplasms
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作者 Hao Zheng Yingchao Hu Zilong Zhang 《Journal of Biosciences and Medicines》 2024年第8期13-29,共17页
Primary appendiceal neoplasms represent a relatively low percentage of all gastrointestinal cancers. A subset of these neoplasms, those of epithelial origin, are characterised by the production of a considerable amoun... Primary appendiceal neoplasms represent a relatively low percentage of all gastrointestinal cancers. A subset of these neoplasms, those of epithelial origin, are characterised by the production of a considerable amount of mucus, which is referred to as appendiceal mucinous neoplasms (AMN). Appendiceal mucinous neoplasms (AMN) have a low incidence, are easily misdiagnosed, depend on postoperative examination for confirmation of the diagnosis, are prone to form a “diagnosis”, and have a high incidence of the disease. Furthermore, they are prone to form peritoneal pseudomyxoma peritonei (PMP), are controversial in surgical decision-making, are prone to recurring after surgery alone, and are tricky to manage clinically. In this paper, we review the pathological characteristics, diagnosis and treatment of appendiceal mucinous tumours in the light of recent literature reports, with a view to providing certain references for the clinical diagnosis and treatment of this disease. . 展开更多
关键词 Appendiceal Mucinous neoplasms Pseudomyxoma Peritonei Cytoreductive surgery Hyperthermic Intraperitoneal Chemotherapy
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Surgical management of pancreatic neuroendocrine neoplasms
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作者 Piero Alberti David Martin +1 位作者 Georgios Gemenetzis Rowan Parks 《Laparoscopic, Endoscopic and Robotic Surgery》 2023年第3期83-90,共8页
Pancreatic neuroendocrine neoplasms are a rare and complex group of neoplastic lesions that develop from pancreatic islet cells.Their incidence has dramatically increased during the last two decades.Due to its complex... Pancreatic neuroendocrine neoplasms are a rare and complex group of neoplastic lesions that develop from pancreatic islet cells.Their incidence has dramatically increased during the last two decades.Due to its complex nature and pathophysiological behaviour,surgical management continues to evolve.Surgery remains the cornerstone of treatment for most non-functional and functional pancreatic neuroendocrine tumours,while lymphadenectomy remains a controversial subject.Different techniques,such as pancreas-preserving and minimally invasive approaches,continue to evolve and offer the same overall outcomes as open surgery.This comprehensive review describes in detail the current and most up-todate classification and staging of pancreatic neuroendocrine tumours,explores the rationale for nonsurgical and surgical management,and focuses on surgical treatment and more specifically,on minimally invasive approaches. 展开更多
关键词 Pancreatic neuroendocrine neoplasms Non-functional pancreatic neuroendocrine tumours Functional pancreatic neuroendocrine tumours LYMPHADENECTOMY Minimally invasive surgery Pancreas preserving techniques
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Solid pseudopapillary tumor of the pancreas:A systematic review of clinical,surgical and oncological characteristics of 1384 patients underwent pancreatic surgery
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作者 Gennaro Mazzarella Edoardo Maria Muttillo +5 位作者 Diego Coletta Biagio Picardi Stefano Rossi Simone Rossi Del Monte Vito Gomes Irnerio Angelo Muttillo 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS CSCD 2024年第4期331-338,共8页
Background:Pancreatic solid pseudopapillary tumors(SPTs)are rare clinical entity,with low malignancy and still unclear pathogenesis.They account for less than 2%of exocrine pancreatic neoplasms.This study aimed to per... Background:Pancreatic solid pseudopapillary tumors(SPTs)are rare clinical entity,with low malignancy and still unclear pathogenesis.They account for less than 2%of exocrine pancreatic neoplasms.This study aimed to perform a systematic review of the main clinical,surgical and oncological characteristics of pancreatic SPTs.Data sources:MEDLINE/PubMed,Web of Science and Scopus databases were systematically searched for the main clinical,surgical and oncological characteristics of pancreatic SPTs up to April 2021,in accordance with the preferred reporting items for systematic reviews and meta-analyses(PRISMA)standards.Primary endpoints were to analyze treatments and oncological outcomes.Results:A total of 823 studies were recorded,86 studies underwent full-text reviews and 28 met inclusion criteria.Overall,1384 patients underwent pancreatic surgery.Mean age was 30 years and 1181 patients(85.3%)were female.The most common clinical presentation was non-specific abdominal pain(52.6%of cases).Mean overall survival was 98.1%.Mean recurrence rate was 2.8%.Mean follow-up was 4.2 years.Conclusions:Pancreatic SPTs are rare,and predominantly affect young women with unclear pathogenesis.Radical resection is the gold standard of treatment achieving good oncological impact and a favorable prognosis in a yearly life-long follow-up. 展开更多
关键词 Frantz’s tumor PANCREAS Pancreatic neoplasms Pancreatic surgery Solid pseudopapillary tumor
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Risk of appendiceal neoplasm in patients with appendix disorders
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作者 Francesco Ferrara Roberto Peltrini 《World Journal of Clinical Cases》 SCIE 2024年第28期6148-6150,共3页
The most common appendicular disease is acute appendicitis,with a lifetime risk of 7%–8%.Complicated cases,which can occur in 2%–7%of patients,can signi-ficantly impact the severity of the condition and may require ... The most common appendicular disease is acute appendicitis,with a lifetime risk of 7%–8%.Complicated cases,which can occur in 2%–7%of patients,can signi-ficantly impact the severity of the condition and may require different manage-ment approaches.Nonoperative management with possible delayed appende-ctomy has been suggested for selected patients,however,there is a non-negligible risk of missing an underlying malignancy,which is reported to be as high as 11%.Diagnostic work-up is paramount to achieve optimal treatment with good results. 展开更多
关键词 APPENDIX Appendiceal neoplasm Appendiceal cancer Colorectal surgery Acute appendicitis
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Clinicopathologic characteristics and prognosis of gastroenteropancreatic neuroendocrine neoplasms: a multicenter study in South China 被引量:23
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作者 Cheng Fang Wei Wang +8 位作者 Yu Zhang Xingyu Feng Jian Sun Yujie Zeng Ye Chen Yong Li Minhu Chen Zhiwei Zhou Jie Chen 《Chinese Journal of Cancer》 SCIE CAS CSCD 2017年第10期497-505,共9页
Background: Gastroenteropancreatic neuroendocrine neoplasms(GEP-NENs) are a heterogeneous group of rare tumors. Many issues in terms of epidemiologic features, pathogenesis, and treatment of GEP-NENs are still under d... Background: Gastroenteropancreatic neuroendocrine neoplasms(GEP-NENs) are a heterogeneous group of rare tumors. Many issues in terms of epidemiologic features, pathogenesis, and treatment of GEP-NENs are still under discussion. Our study aimed to analyze the clinicopathologic characteristics and prognosis of Chinese patients with GEP-NENs.Methods: Complete clinicopathologic data and survival information of 1183 patients with GEP-NENs treated between 2005 and 2015 were collected from five medical centers in Guangdong Province, China. Patient survival was estimated using the Kaplan–Meier method and analyzed using the log-rank test; prognostic factors were analyzed using the Cox proportional hazards model.Results: The most common tumor location was the rectum(37.4%), followed by the pancreas(28.1%), stomach(20.7%), small intestine(7.2%), appendix(3.4%), and colon(3.3%). After initial definitive diagnosis, 1016(85.9%) patients underwent surgery. The 1-, 3-, and 5-year overall survival(OS) rates for the entire cohort were 87.9%, 78.5%, and 72.8%, respectively. The 3-year OS rates of patients with G1, G2, and G3 tumors were 93.1%, 82.7%, and 43.1%, respectively(P < 0.001). The 3-year OS rates of patients with stage I, II, III, and IV tumors were 96.0%, 87.3%, 64.0%, and 46.8%, respectively(P < 0.001). Patients with distant metastasis who underwent palliative surgery had a longer survival than those who did not(P = 0.003). Similar survival benefits of palliative surgery were observed in patients with neuroendocrine tumor(P y, M category, and sur= 0.031) or neuroendocrine carcinoma(P gery were found to be independent prog= 0.046). In multivariate analysis, age, grade, N categornostic factors.Conclusions: Patients with GEP-NENs who are women, younger than 50 years old, have smaller tumor size, have lower tumor grade, have lower T/N/M category, and who undergo surgery can have potentially longer survival time. Our data showed that surgery can improve the prognosis of GEP-NEN patients with distant metastasis. However, randomized controlled trials need to be conducted to establish the optimal criteria for selecting patients to undergo surgery. 展开更多
关键词 Gastroenteropancreatic NEUROENDOCRINE neoplasms surgery PROGNOSIS China
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Current perspectives on pancreatic serous cystic neoplasms:Diagnosis, management and beyond 被引量:16
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作者 Xiao-Peng Zhang Zhong-Xun Yu +1 位作者 Yu-Pei Zhao Meng-Hua Dai 《World Journal of Gastrointestinal Surgery》 SCIE CAS 2016年第3期202-211,共10页
Pancreatic cystic neoplasms have been increasingly recognized recently. Comprising about 16% of all resected pancreatic cystic neoplasms, serous cystic neoplasms are uncommon benign lesions that are usually asymptomat... Pancreatic cystic neoplasms have been increasingly recognized recently. Comprising about 16% of all resected pancreatic cystic neoplasms, serous cystic neoplasms are uncommon benign lesions that are usually asymptomatic and found incidentally. Despite overall low risk of malignancy, these pancreatic cysts still generate anxiety, leading to intensive medical investigations with considerable financial cost to health care systems. This review discusses the general background of serous cystic neoplasms, including epidemiology and clinical characteristics, and provides an updated overview of diagnostic approaches based on clinical features, relevant imaging studies and new findings that are being discovered pertaining to diagnostic evaluation. We also concisely discuss and propose management strategies for better quality of life. 展开更多
关键词 PANCREATIC CYSTIC neoplasm SEROUS CYSTIC neoplasm DIAGNOSIS MANAGEMENT strategy surgery
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Differences between main-duct and branch-duct intraductal papillary mucinous neoplasms of the pancreas 被引量:15
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作者 Roberto Salvia Stefano Crippa +5 位作者 Stefano Partelli Giulia Armatura Giuseppe Malleo Marina Paini Antonio Pea Claudio Bassi 《World Journal of Gastrointestinal Surgery》 SCIE CAS 2010年第10期342-346,共5页
In the last decade,intraductal papillary mucinous neoplasms(IPMNs) have become commonly diagnosed.From a morphological standpoint,they are classified in main-duct IPMNs(MD-IPMNs) and branch-duct IPMNs(BD-IPMNs),depend... In the last decade,intraductal papillary mucinous neoplasms(IPMNs) have become commonly diagnosed.From a morphological standpoint,they are classified in main-duct IPMNs(MD-IPMNs) and branch-duct IPMNs(BD-IPMNs),depending on the type of involvement of the pancreatic ductal system by the neoplasm.Despite the fact that our understanding of their natural history is still incomplete,recent data indicate that MD-IPMNs and BD-IPMNs show significant differences in terms of biological behaviour with MD-IPMNs at higher risk of malignant degeneration.In the present paper,clinical and epidemiological characteristics,rates of malignancy and the natural history of MD-IPMNs and BD-IPMNs are analyzed.The profile of IPMNs involving both the main pancreatic duct and its side branches(combined-IPMNs) are also discussed.Finally,general recommendations for management based on these differences are given. 展开更多
关键词 Intraductal papillary mucinous neoplasms Branch-duct Main-duct Malignancy surgery FOLLOWUP Nodules Combined type
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Gastric neuroendocrine neoplasms type 1: A systematic review and meta-analysis 被引量:7
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作者 Apostolos V Tsolakis Athanasia Ragkousi +2 位作者 Miroslav Vujasinovic Gregory Kaltsas Kosmas Daskalakis 《World Journal of Gastroenterology》 SCIE CAS 2019年第35期5376-5387,共12页
BACKGROUND To date, the histopathological parameters predicting the risk of lymph node (LN) metastases and local recurrence, associated mortality and appropriateness of endoscopic or surgical resection in patients wit... BACKGROUND To date, the histopathological parameters predicting the risk of lymph node (LN) metastases and local recurrence, associated mortality and appropriateness of endoscopic or surgical resection in patients with gastric neuroendocrine neoplasms type 1 (GNENs1) have not been fully elucidated. AIM To determine the rate of LN metastases and its impact in survival in patients with GNEN1 in relation to certain clinico-pathological parameters. METHODS The PubMed, EMBASE, Cochrane Library, Web of Science and Scopus databases were searched through January 2019. The quality of the included studies and risk of bias were assessed using the Newcastle-Ottawa Scale (NOS) in accordance with the Cochrane guidelines. A random effects model and pooled odds ratios (OR) with 95%CI were applied for the quantitative meta-analysis. RESULTS We screened 2933 articles. Thirteen studies with 769 unique patients with GNEN1 were included. Overall, the rate of metastasis to locoregional LNs was 3.3%(25/769). The rate of LN metastases with a cut-off size of 10 mm was 15.3% for lesions > 10 mm (vs 0.8% for lesions < 10 mm) with a random-effects OR of 10.5 (95%CI: 1.4 -80.8;heterogeneity: P = 0.126;I2 = 47.5%). Invasion of the muscularis propria was identified as a predictor for LN metastases (OR: 17.2;95%CI: 1.8-161.1;heterogeneity: P = 0.165;I2 = 44.5%), whereas grade was not clearly associated with LN metastases (OR: 2;95%CI: 0.3-11.6;heterogeneity: P = 0.304;I2 = 17.4%). With regard to GNEN1 local recurrence, scarce data were available. The 5-year disease-specific survival for patients with and without LN metastases was 100% in most available studies irrespective of the type of intervention. Surgical resection was linked to a lower risk of recurrence (OR: 0.3;95%CI: 0.1-1.1;heterogeneity: P = 0.173;I2 = 31.9%). The reported complication rates of endoscopic and surgical intervention were 0.6 and 3.8%, respectively. CONCLUSION This meta-analysis confirms that tumor size ≥ 10 mm and invasion of the muscularis propria are linked to a higher risk of LN metastases in patients with GNEN1. Overall, the metastatic propensity of GNEN1 is low with favorable 5- year disease-specific survival rates reported;hence, no clear evidence of the prognostic value of LN positivity is available. Additionally, there is a lack of evidence supporting the prediction of local recurrence in GNEN1, even if surgery was more often a definitive treatment. 展开更多
关键词 GASTRIC NEUROENDOCRINE neoplasms TYPE 1 META-ANALYSIS LYMPH node metastasis Tumor size Invasion Endoscopy surgery
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Update on surgical treatment of pancreatic neuroendocrine neoplasms 被引量:5
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作者 Jan G D’Haese Chiara Tosolini +4 位作者 Güralp O Ceyhan Bo Kong Irene Esposito Christoph W Michalski J?rg Kleeff 《World Journal of Gastroenterology》 SCIE CAS 2014年第38期13893-13898,共6页
Pancreatic neuroendocrine neoplasms(PNENs) are rare and account for only 2%-4% of all pancreatic neoplasms. All PNENs are potential(neurendocrine tumors PNETs) or overt(neuroendocrine carcinomas PNECs) malignant,but a... Pancreatic neuroendocrine neoplasms(PNENs) are rare and account for only 2%-4% of all pancreatic neoplasms. All PNENs are potential(neurendocrine tumors PNETs) or overt(neuroendocrine carcinomas PNECs) malignant,but a subset of PNETs is low-risk. Even in case of low-risk PNETs surgical resection is frequently required to treat hormone-related symptoms and to obtain an appropriate pathological diagnosis. Low-risk PNETs in the body and the tail are ideal for minimallyinvasive approaches which should be tailored to the individual patient. Generally,surgeons must aim for parenchyma sparing in these cases. In high-risk and malignant PNENs,indications for tumor resection are much wider than for pancreatic adenocarcinoma,in many cases due to the relatively benign tumor biology. Thus,patients with locally advanced and metastatic PNETs may benefit from extensive resection. In experienced hands,even multi-organ resections are accomplished with acceptable perioperative morbidity and mortality rates and are associated with excellent long term survival. However,poorly differentiated neoplasms with high proliferation rates are associated with a dismal prognosis and may frequently only be treated with chemotherapy. The evidence on surgical treatment of PNENs stems from reviews of mostly singlecenter series and some analyses of nation-wide tumor registries. No randomized trial has been performed to compare surgical and non-surgical therapies in potentially resectable PNEN. Though such a trial would principally be desirable,ethical considerations and the heterogeneity of PNENs preclude realization of such a study. In the current review,we summarize recent advances in the surgical treatment of PNENs. 展开更多
关键词 surgery LAPAROSCOPY Liver metastases Pancreatic neuroendocrine neoplasms Pancreatic neuroendocrine neoplasm
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Endoscopic submucosal dissection for colorectal neoplasms 被引量:1
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作者 Mitsuhiro Fujishiro 《World Journal of Gastrointestinal Endoscopy》 CAS 2009年第1期32-38,共7页
Although endoscopic submucosal dissection(ESD) gains acceptance as one of the standard treatments for esophageal and stomach neoplasms in Japan,it is still in the developing stage for colorectal neoplasms.In terms of ... Although endoscopic submucosal dissection(ESD) gains acceptance as one of the standard treatments for esophageal and stomach neoplasms in Japan,it is still in the developing stage for colorectal neoplasms.In terms of indications,little likelihood of nodal metastasis and technical resectability are principally considered.Some of intramucosal neoplasms,carcinomas with minute submucosal invasion,and carcinoid tumors,which are technically unresectable by conventional endoscopic treatments,may become good candidates for ESD,considering substantial risks and obtained benefits.ESD as a staging measure to obtain histological information of the invasion depth and lymphovascular infiltration is acceptable because preoperative prediction is difficult in some cases.In terms of techniques,advantages of ESD in comparison with other endoscopic treatments are to be controllable in size and shape,and to be resectable even in large and fibrotic neoplasms.The disadvantages may be longer procedure time,heavier bleeding,and higher possibility of perforation.However,owing to refinement of the techniques,invention of devices,and the learning curve,acceptable technical safety has been achieved.Colorectal ESD is very promising and become one of the standard treatments for colorectal neoplasms in the near future. 展开更多
关键词 COLORECTAL neoplasm Early COLORECTAL cancer ENDOSCOPIC SUBMUCOSAL dissection ENDOSCOPIC MUCOSAL resection ENDOLUMINAL surgery
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Therapeutic strategies for gastroenteropancreatic neuroendocrine neoplasms: State-of-the-art and future perspectives 被引量:1
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作者 Elettra Merola Andrea Michielan +7 位作者 Umberto Rozzanigo Marco Erini Sandro Sferrazza Stefano Marcucci Chiara Sartori Chiara Trentin Giovanni de Pretis Franca Chierichetti 《World Journal of Gastrointestinal Surgery》 SCIE 2022年第2期78-106,共29页
Although gastroenteropancreatic neuroendocrine neoplasms(GEP-NENs)have always been considered rare tumors,their incidence has risen over the past few decades.They represent a highly heterogeneous group of neoplasms wi... Although gastroenteropancreatic neuroendocrine neoplasms(GEP-NENs)have always been considered rare tumors,their incidence has risen over the past few decades.They represent a highly heterogeneous group of neoplasms with several prognostic factors,including disease stage,proliferative index(Ki67),and tumor differentiation.Most of these neoplasms express somatostatin receptors on the cell surface,a feature that has important implications in terms of prognosis,diagnosis,and therapy.Although International Guidelines propose algorithms aimed at guiding therapeutic strategies,GEP-NEN patients are still very different from one another,and the need for personalized treatment continues to increase.Radical surgery is always the best option when feasible;however,up to 80%of cases are metastatic upon diagnosis.Regarding medical treatments,as GEP-NENs are characterized by relatively long overall survival,multiple therapy lines are adopted during the lifetime of these patients,but the optimum sequence to be followed has never been clearly defined.Furthermore,although new molecular markers aimed at predicting the response to therapy,as well as prognostic scores,are currently being studied,their application is still far from being part of daily clinical practice.As they represent a complex disease,with therapeutic protocols that are not completely standardized,GEP-NENs require a multidisciplinary approach.This review will provide an overview of the available therapeutic options for GEP-NENs and attempts to clarify the possible approaches for the management of these patients and to discuss future perspectives in this field. 展开更多
关键词 Gastroenteropancreatic neuroendocrine neoplasms Therapeutic strategies Radical surgery Medical treatments OVERVIEW Future perspectives
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CONGENITAL EXPRESSION OF mdr-1 GENE IN FRESH CANCER TISSUES FROM SEVERAL HIGH-INCIDENCE NEOPLASMS WITHOUT PREOPERATIVE CHEMOTHERAPY
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作者 张艳敏 邢海平 +3 位作者 师晓天 陈克能 程邦昌 宋艳霞 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 1997年第3期72-75,共4页
Objective: The purpose of the present study is to detect characteristics of primary expression of mdr 1 gene in several neoplasms which has high morbidity in clinic. Methods: 151 resected samples, which are patholog... Objective: The purpose of the present study is to detect characteristics of primary expression of mdr 1 gene in several neoplasms which has high morbidity in clinic. Methods: 151 resected samples, which are pathologically malignant and clinically untreated before operation, were obtained from Anyang Cancer Hospital. All of them were investigated with RT PCR for the expression of mdr 1 gene and correlated each other. Besides, we evaluated the advantages of RT PCR in this study. Results: The mdr 1 gene expression rate of these 151 samples, including cancers of stomach and gastric cardia (n=51), esophagus (n=46), colorectum (n=16), breast (n=15), thyroid (n=10), lung (n=9), uterine cervix (n=4), was 33.3%, 37%, 31.3%, 13.2%, 40%, 55%, 0%, respectively. Conclusion: Compared with other methods, RT PCR for studying mdr 1 gene expression had certain advantages in simplicity, reliability, and accuracy. Overexpression of mdr 1 gene in these neoplasms suggested that cases should be distinguished before treatment according to MDR of tumor and to choose effective drugs for individual cancer patient. 展开更多
关键词 neoplasms Drug resistance Gene expression mdr 1 gene surgery.
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Pancreas sparing duodenectomy in the treatment of primary duodenal neoplasms and other situations with duodenal involvement
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作者 Juli Busquets Josefina Lopez-Dominguez +5 位作者 Ana Gonzalez-Castillo Marina Vila Nuria Pelaez Lluis Secanella Emilio Ramos Juan Fabregat 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS CSCD 2021年第5期485-492,共8页
Background:There are no clearly defined indications for pancreas-preserving duodenectomy.The present study aimed to analyze postoperative morbidity and the outcomes of patients undergoing pancreaspreserving duodenecto... Background:There are no clearly defined indications for pancreas-preserving duodenectomy.The present study aimed to analyze postoperative morbidity and the outcomes of patients undergoing pancreaspreserving duodenectomy.Methods:Patients undergoing pancreas-preserving duodenectomy from April 2008 to May 2020 were included.We divided the series according to indication:scenario 1,primary duodenal tumors;scenario 2,tumors of another origin with duodenal involvement;and scenario 3,emergency duodenectomy.Results:We included 35 patients.Total duodenectomy was performed in 1 patient of adenomatous duodenal polyposis,limited duodenectomy in 7,and third+fourth duodenal portion resection in 27.The indications for scenario 1 were gastrointestinal stromal tumor(n=13),adenocarcinoma(n=4),neuroendocrine tumor(n=3),duodenal adenoma(n=1),and adenomatous duodenal polyposis(n=1);scenario 2:retroperitoneal desmoid tumor(n=2),recurrence of liposarcoma(n=2),retroperitoneal paraganglioma(n=1),neuroendocrine tumor in pancreatic uncinate process(n=1),and duodenal infiltration due to metastatic adenopathies of a germinal tumor with digestive hemorrhage(n=1);and scenario 3:aortoenteric fistula(n=3),duodenal trauma(n=1),erosive duodenitis(n=1),and biliopancreatic limb ischemia(n=1).Severe complications(Clavien-Dindo≥IIIb)developed in 14%(5/35),and postoperative mortality was 3%(1/35).Conclusions:Pancreas-preserving duodenectomy is useful in the management of primary duodenal tumors,and is a technical option for some tumors with duodenal infiltration or in emergency interventions. 展开更多
关键词 Duodenectomy Duodenal neoplasms Organ sparing treatments Pancreatic surgery Duodenal diseases
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Collision Neoplasms of the Vermiform Appendix
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作者 Ana P. Melendez Xiaoli Chen Jesus Esquivel 《Open Journal of Gastroenterology》 CAS 2022年第10期307-316,共10页
Neoplasms of the vermiform appendix represent 1% of all gastrointestinal tumors, with epithelial and neuroendocrine histological subtypes being the most frequent. When two or more neoplasms with different components o... Neoplasms of the vermiform appendix represent 1% of all gastrointestinal tumors, with epithelial and neuroendocrine histological subtypes being the most frequent. When two or more neoplasms with different components originate synchronically in the appendix with clear margin between them, it is called a collision tumor, with exceptional cases being reported in literature. The purpose is to present two new cases of collision tumors of the appendix and perform a review of the published literature. Two cases of an 82-year-old female and a 41-year-old male with collision tumors of the vermiform appendix are presented, with clinical presentation, radiological evaluation and surgical treatment exposed. Our results are compared with other published reports. In accordance with the other reported cases, both patients presented with low-grade appendiceal mucinous neoplasm (LAMN). Female patient with synchronous goblet cell carcinoma managed with a completion right colectomy and Hyperthermic intraperitoneal chemotherapy (HIPEC) and the other patient with well-differentiated neuroendocrine (NET) tumor managed with laparoscopic appendectomy without adjuvant treatment. Since very few cases have been reported, no diagnostic and therapeutic consensus and guidelines exist up to date. We agree that local, regional, and systemic therapies should be chosen according to the tumor that represents the worst prognosis. 展开更多
关键词 Cytoreductive surgery HIPEC Peritoneal Tumors Collision neoplasms
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Current status of surgical management of patients with gastroenteropancreatic neuroendocrine neoplasms
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作者 Rafał Stankiewicz Michał Grąt 《World Journal of Gastrointestinal Surgery》 SCIE 2022年第4期276-285,共10页
Neuroendocrine neoplasms(NENs)of the gastroenteropancreatic system are rare and heterogeneous tumours,yet with increasing prevalence.The most frequent primary sites are the small intestine,rectum,pancreas,and stomach.... Neuroendocrine neoplasms(NENs)of the gastroenteropancreatic system are rare and heterogeneous tumours,yet with increasing prevalence.The most frequent primary sites are the small intestine,rectum,pancreas,and stomach.For a localized disease,surgical resection with local lymph nodes is usually curative with good overall and disease free survival.More complex situation is the treatment of locally advanced lesions,liver metastases,and,surprisingly,small asymptomatic tumours of the rectum and pancreas.In this review,we focus on the current role of surgical management of gastroenteropancreatic NENs.We present surgical approach for the most frequent primary sites.We highlight the role of endoscopic surgery and the watch-and-wait strategy for selected cases.As liver metastases pose an important clinical challenge,we present current indications and contraindications for liver resection and a role of liver transplantation for metastatic NENs. 展开更多
关键词 Gastroenteropancreatic neuroendocrine neoplasms TREATMENT MANAGEMENT Liver metastases Liver transplantation surgery
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Role of surgical treatments in high-grade or advanced gastroenteropancreatic neuroendocrine neoplasms
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作者 Qing-Yang Que Lin-Cheng Zhang +2 位作者 Jia-Qi Bao Sun-Bin Ling Xiao Xu 《World Journal of Gastrointestinal Surgery》 SCIE 2022年第5期397-408,共12页
Over the last 40 years,the incidence and prevalence of gastroenteropancreatic neuroendocrine neoplasms(GEP-NENs)have continued to increase.Compared to other epithelial neoplasms in the same organ,GEP-NENs exhibit indo... Over the last 40 years,the incidence and prevalence of gastroenteropancreatic neuroendocrine neoplasms(GEP-NENs)have continued to increase.Compared to other epithelial neoplasms in the same organ,GEP-NENs exhibit indolent biological behavior,resulting in more chances to undergo surgery.However,the role of surgery in high-grade or advanced GEP-NENs is still controversial.Surgery is associated with survival improvement of well-differentiated highgrade GEP-NENs,whereas poorly differentiated GEP-NENs that may benefit from resection require careful selection based on Ki67 and other tissue biomarkers.Additionally,surgery also plays an important role in locally advanced and metastatic disease.For locally advanced GEP-NENs,isolated major vascular involvement is no longer an absolute contraindication.In the setting of metastatic GEP-NENs,radical intended surgery is recommended for patients with low-grade and resectable metastases.For unresectable metastatic disease,a variety of surgical approaches,including cytoreduction of liver metastasis,liver transplantation,and surgery after neoadjuvant treatment,show survival benefits.Primary tumor resection in GEP-NENs with unresectable metastatic disease is associated with symptom control,prolonged survival,and improved sensitivity toward systemic therapies.Although there is no established neoadjuvant or adjuvant strategy,increasing attention has been given to this emerging research area.Some studies have reported that neoadjuvant therapy effectively reduces tumor burden,improves the effectiveness of subsequent surgery,and decreases surgical complications. 展开更多
关键词 Gastroenteropancreatic neuroendocrine neoplasms Neuroendocrine carcinomas surgery Hepatic debulking Liver transplant Transplant oncology
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Impact of technology on indications and limitations for transanal surgical removal of rectal neoplasms
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作者 Bikash Devaraj Andreas M Kaiser 《World Journal of Surgical Procedures》 2015年第1期1-13,共13页
Transanal surgery has and continues to be well accepted for local excision of benign rectal disease not amenable to endoscopic resection. More recently, there has been increasing interest in applying transanal surgery... Transanal surgery has and continues to be well accepted for local excision of benign rectal disease not amenable to endoscopic resection. More recently, there has been increasing interest in applying transanal surgery to local resection of early malignant disease. In addition, some groups have started utilizing a transanal route in order to accomplish total mesorectal excision(TME) for more advanced rectal malignancies. We aim to review the role of various transanal and endoscopic techniquesin the local resection of benign and malignant rectal disease based on published trial data. Preliminary data on the use of transanal platforms to accomplish TME will also be highlighted. For endoscopically unresectable rectal adenomas, transanal surgery remains a widely accepted method with minimal morbidity that avoids the downsides of a major abdomino-pelvic operation. Transanal endoscopic microsurgery and transanal minimally invasive surgery offer improved visualization and magnification, allowing for finer and more precise dissection of more proximal and larger rectal lesions without compromising patient outcome. Some studies have demonstrated efficacy in utilizing transanal platforms in the surgical management of early rectal malignancies in selected patients. There is an overall higher recurrence rate with transanal surgery with the concern that neither chemoradiation nor salvage surgery may compensate for previous approach and correct the inferior outcome. Application of transanal platforms to accomplish transanal TME in a natural orifice fashion are still in their infancy and currently should be considered experimental. The current data demonstrate that transanal surgery remains an excellent option in the surgical management of benign rectal disease. However, care should be used when selecting patients with malignant disease. The application of transanal platforms continues to evolve. While the new uses of transanal platforms in TME for more advanced rectal malignancy are exciting, it is important to remain cognizant and not sacrifice long term survival for short term decrease in morbidity and improved cosmesis. 展开更多
关键词 TRANSANAL surgery TRANSANAL ENDOSCOPIC MICROsurgery ENDOSCOPIC mucosal resection TRANSANAL total mesorectal EXCISION TRANSANAL MINIMALLY invasive surgery Robotic TRANSANAL surgery Local EXCISION rectal neoplasms
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Robotic surgery for multi-visceral resection in locally advanced colorectal cancer:Techniques,benefits and future directions
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作者 Chahaya Gauci Praveen Ravindran +1 位作者 Stephen Pillinger Andrew Craig Lynch 《Laparoscopic, Endoscopic and Robotic Surgery》 2023年第4期123-126,共4页
Colorectal cancer accounts for 10%of diagnosed cancers globally and often presents as advanced disease,necessitating aggressive treatment.With both younger and healthier elderly patients being diagnosed,as well as pot... Colorectal cancer accounts for 10%of diagnosed cancers globally and often presents as advanced disease,necessitating aggressive treatment.With both younger and healthier elderly patients being diagnosed,as well as potentially the need for salvage therapy post total neoadjuvant treatment,surgical options for cure include pelvic exenteration.Whilst typically performed via an open approach,there has been an increased utilisation of minimally invasive techniques including robotic surgery.Offering smaller in-cisions,reduced postoperative pain,and quicker recovery time than open surgery,robotic techniques have demonstrated lower blood loss,shorter hospital stays,and reduced morbidity.Moreover,the er-gonomic design of robotic systems provides surgeons with comfort during long procedures and increased precision.It also offers an increased opportunity for organ preservation and reconstruction whilst maintaining adequate oncological outcomes.As robotic technology continues to evolve and combines with artificial intelligence,it is poised to play an even more significant role in the management of complex colorectal cancer cases,improving survival and long-term outcomes. 展开更多
关键词 Colorectal neoplasms Robotic surgical procedures Pelvic exenteration Multivisceral surgery Artificial intelligence
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口腔专科医院非计划二次手术的回顾性分析
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作者 王晓颖 宋颖 王晓霞 《中国卫生标准管理》 2024年第18期62-66,共5页
目的探讨口腔专科医院非计划二次手术发生的特点及影响因素。方法选取北京大学口腔医院2016—2021年所有二次手术患者信息,对非计划二次手术的病种、发生原因等进行统计分析,通过logistic回归进一步分析舌恶性肿瘤非计划二次手术的相关... 目的探讨口腔专科医院非计划二次手术发生的特点及影响因素。方法选取北京大学口腔医院2016—2021年所有二次手术患者信息,对非计划二次手术的病种、发生原因等进行统计分析,通过logistic回归进一步分析舌恶性肿瘤非计划二次手术的相关性因素。结果2016—2021年共发生非计划二次手术468例(1.17%),与第一次手术的间隔时间为0~20 d。构成比排在前3位的病种为颌面部恶性肿瘤、颌面部良性肿瘤、颌面部感染,导致非计划二次手术的主要原因为皮瓣血管危象、手术后血肿出血,占比为90.17%(422/468)。非计划二次手术组男性319例,女性149例,男女之比为2.14∶1,年龄53.00(36.00,62.00)岁,住院时间14.00(12.00,18.00)d,总费用为68694.91(51773.01,89850.04)元;对照组男性19932例,女性19495例,年龄31.00(18.00,53.00)岁,住院时间7.00(4.00,10.00)d,总费用为12338.96(8869.90,28650.17)元,比较差异有统计学意义(P<0.05)。非计划二次手术术式以有皮瓣为主,占比为76.07%。2016—2021年三四级手术中非计划二次手术发生率为3.62%(397/10966),高于一二级手术的0.25%(71/28929)。年龄、饮酒史、高血压、皮瓣手术是影响舌恶性肿瘤非计划二次手术的主要危险因素(P<0.05)。结论应针对口腔颌面外科专业非计划二次手术危险因素,加强围手术期和手术分级管理,以提升医疗质量。 展开更多
关键词 非计划二次手术 口腔专科医院 恶性肿瘤 医疗质量 围手术期管理 手术级别
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乳腺癌改良根治术后血清sEC、s-CD105水平与复发转移的相关性分析
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作者 何旻 巢琳 华亦汇 《中国现代医学杂志》 CAS 2024年第5期95-100,共6页
目的分析乳腺癌改良根治术后血清可溶性E-钙黏连蛋白(sEC)、可溶性内皮糖蛋白105(sCD105)水平与复发转移的关系。方法选取2017年2月—2020年3月在无锡市第二人民医院行乳腺癌改良根治术的124例乳腺癌患者为研究对象。术后测定患者血清sE... 目的分析乳腺癌改良根治术后血清可溶性E-钙黏连蛋白(sEC)、可溶性内皮糖蛋白105(sCD105)水平与复发转移的关系。方法选取2017年2月—2020年3月在无锡市第二人民医院行乳腺癌改良根治术的124例乳腺癌患者为研究对象。术后测定患者血清sEC、s-CD105水平,并随访3年,统计复发转移情况。比较复发转移组与未复发转移组患者血清sEC、s-CD105水平,采用多因素逐步Logistic回归分析影响乳腺癌改良根治术后复发转移的因素,绘制受试者工作特征(ROC)曲线分析血清sEC、s-CD105预测乳腺癌改良根治术后复发转移的价值。结果截至随访结束,12例失访,剩余112例患者中复发转移15例。复发转移组患者血清sEC、s-CD105水平均高于未复发转移组(P<0.05)。多因素逐步Logistic回归分析结果显示,肿瘤分期高[OR=5.171(95%CI:2.128,12.567)]、分化程度低[OR=4.899(95%CI:2.016,11.909)]、血清sEC水平高[OR=3.540(95%CI:1.456,8.602)]、血清s-CD105水平高[OR=3.673(95%CI:1.511,8.927)]均是影响乳腺癌改良根治术后复发转移的危险因素(P<0.05)。ROC曲线分析结果显示,血清s EC、s-CD105单独及联合预测乳腺癌改良根治术后复发转移的敏感性分别为66.67%(95%CI:0.387,0.870)、73.33%(95%CI:0.448,0.910)、86.67%(95%CI:0.584,0.977);特异性分别为70.10%(95%CI:0.598,0.788)、77.32%(95%CI:0.675,0.850)、85.57%(95%CI:0.766,0.916);曲线下面积分别为0.734(95%CI:0.639,0.828)、0.747(95%CI:0.645,0.849)、0.892(95%CI:0.825,0.959)。结论乳腺癌改良根治术后血清sEC、s-CD105水平与复发转移有关,两者联合预测术后复发转移效能良好。 展开更多
关键词 乳腺癌 改良根治术 可溶性E-钙黏连蛋白 可溶性内皮糖蛋白105 复发转移
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