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Systematic review of diagnostic tools for peritoneal metastasis in gastric cancer-staging laparoscopy and its alternatives

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World Journal of Gastrointestinal Surgery 2023年第10期15卷 2280-2293页

作者： Si Ying Adelina Ho Kon Voi Tay Lee Kong Chian School of Medicine Singapore 308232Singapore Upper GI and Bariatric Division General SurgeryTan Tock Seng HospitalSingapore 308433Singapore Upper GI and Bariatric Division General SurgeryWoodlands HealthSingapore 768024Singapore

BACKGROUND Gastric cancer is one of the leading causes of cancer burden and mortality,often resulting in peritoneal metastasis in advanced stages with negative survival *** laparoscopy has become standard practice for suspected cases before a definitive gastrectomy or *** systematic review aims to compare the efficacy of other diagnostic modalities instead of staging laparoscopy as the alternatives are able to reduce cost and invasive staging ***,a radiomic model based on computed tomography and positron emission tomography(PET)has also emerged as another method to predict peritoneal *** To determine if the efficacy of computed tomography,magnetic resonance imaging and PET is comparable with staging *** Articles comparing computed tomography,PET,magnetic resonance imaging,and radiomic models based on computed tomography and PET to staging laparoscopies were filtered out from the Cochrane Library,EMBASE,PubMed,Web of Science,and Reference Citations Analysis(https://***/).In the search for studies comparing computed tomography(CT)to staging laparoscopy,five retrospective studies and three prospective studies were ***,five retrospective studies and two prospective studies were also included for papers comparing CT to PET *** one retrospective study and one prospective study were found to be suitable for papers comparing CT to magnetic resonance imaging *** staging laparoscopy outperformed computed tomography in all measured aspects,namely sensitivity,specificity,positive predictive value and negative predictive *** resonance imaging and PET produced mixed results,with the former shown to be only marginally better than computed *** performed slightly better than PET in most measured domains,except in specificity and true negative *** speculate that this may be due to the limited F-fluorodeoxyglucose uptake in small peri

关键词： Gastric cancer Peritoneal metastases Computed tomography Positron emission tomography Magnetic resonance imaging staging laparoscopy

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Risk factors for occult metastasis detected by inflammation-based prognostic scores and tumor markers in biliary tract cancer

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World Journal of Clinical Cases 2021年第32期9卷 9770-9782页

作者： Yu Hashimoto Tetsuo Ajiki Hiroaki Yanagimoto Daisuke Tsugawa Kenta Shinozaki Hirochika Toyama Masahiro Kido Takumi Fukumoto Department of Surgery Division of Hepato-Biliary-Pancreatic SurgeryKobe University Graduate School of MedicineKobeHyogo 650-0017Japan

BACKGROUND Radiological detection of small liver metastasis or peritoneal metastasis is still difficult,and some patients with biliary tract cancer(BTC)are unresectable after *** laparoscopy may help avoid unnecessary ***,which category of BTC is amenable with staging laparoscopy remains *** To clarify the risk factors for occult metastasis in patients with *** Medical records of patients with BTC who underwent surgery at our institution between January 2008 and June 2014 were retrospectively *** patients were divided into two groups,according to resection or exploratory laparotomy(EL).Preoperative laboratory data,including inflammation-based prognostic scores and tumor markers,were compared between the two *** importance of detected risk factors was also *** A total of 236 patients were enrolled in this ***-six(11%)patients underwent *** the EL patients,there were 16 cases of occult metastasis(7 liver metastases and 9 abdominal disseminations).Serum carcinoembryonic antigen level,carbohydrate antigen 19-9 level,neutrophil-lymphocyte ratio and modified Glasgow prognostic score were significantly higher in the EL group than in the resected group,and these factors were *** these factors,carcinoembryonic antigen>7 ng/mL was the most useful to predict occult metastasis in *** patients have more than three of these positive factors,the rate of occult metastasis *** Inflammation-based prognostic scores and tumor markers are useful in detecting occult metastasis in BTC;based on these factors,staging laparoscopy may reduce the rate of EL.

关键词： Biliary tract cancer staging laparoscopy Neutrophil-lymphocyte ratio Modified Glasgow prognostic score Carbohydrate antigen 19-9 Carcinoembryonic antigen

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