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1Gut-liver axis and probiotics: Their role in non-alcoholic fatty liver disease显示文摘The incidence of obesity and its related conditions, including non-alcoholic fatty liver disease(NAFLD), has dramatically increased in all age groups worldwide. Given the health consequences of these conditions, and the subsequent economic burden on healthcare systems, their prevention and treatment have become major priorities. Because standard dietary and lifestyle changes and pathogenically-oriented therapies(e.g., antioxidants, oral hypoglycemic agents, and lipid-lowering agents) often fail due to poor compliance and/or lack of efficacy, novel approaches directed toward other pathomechanisms are needed. Here we present several lines of evidence indicating that, by increasing energy extraction in some dysbiosis conditions or small intestinal bacterial overgrowth,specific gut microbiota and/or a'low bacterial richness'may play a role in obesity,metabolic syndrome,and fatty liver.Under conditions involving a damaged intestinal barrier('leaky gut'),the gut-liver axis may enhance the natural interactions between intestinal bacteria/bacterial products and hepatic receptors(e.g.,toll-like receptors),thus promoting the following cascade of events:oxidative stress,insulinresistance,hepatic inflammation,and fibrosis.We also discuss the possible modulation of gut microbiota by probiotics,as attempted in NAFLD animal model studies and in several pilot pediatric and adult human studies.Globally,this approach appears to be a promising and innovative add-on therapeutic tool for NAFLD in the context of multi-target therapy.Giulia Paolella Claudia Mandato Luca Pierri Marco Poeta Martina Di Stasi Pietro Vajro 2014World Journal of Gastroenterology2014,20,42:55
2Major osteoporotic fragility fractures: Risk factor updates and societal impact显示文摘Osteoporosis is a silent disease without any evidence of disease until a fracture occurs. Approximately 200 million people in the world are affected by osteoporosis and 8.9 million fractures occur each year worldwide. Fractures of the hip are a major public health burden, by means of both social cost and health condition of the elderly because these fractures are one of the main causes of morbidity, impairment, decreased quality of life and mortality in women and men. The aim of this review is to analyze the most important factors related to the enormous impact of osteoporotic fractures on population. Among the most common risk factors, low body mass index; history of fragility fracture, environmental risk, early menopause, smoking, lack of vitamin D, endocrine disorders(for example insulin-dependent diabetes mellitus), use of glucocorticoids, excessive alcohol intake, immobility and others represented the main clinical risk factors associated with augmented risk of fragility fracture. The increasing trend of osteoporosis is accompanied by an underutilization of the available preventive strategies and only a small number of patients at high fracture risk are recognized and successively referred for therapy. This report provides analytic evidences to assess the best practices in osteoporosis management and indications for the adoption of a correct healthcare strategy to significantly reduce the osteoporosis burden. Early diagnosis is the key to resize the impact of osteoporosis on healthcare system. In this context, attention must be focused on the identification of high fracture risk among osteoporotic patients. It is necessary to increase national awareness campaigns across countries in order to reduce the osteoporotic fractures incidence.Paola Pisani Maria Daniela Renna Francesco Conversano Ernesto Casciaro Marco Di Paola Eugenio Quarta Maurizio Muratore Sergio Casciaro 2016World Journal of Orthopedics2016,7,3:39
3Risk factors associated with pancreatic fistula after distal pancreatectomy, which technique of pancreatic stump closure is more beneficial?显示文摘AIM: To identify risk factors related to pancreatic fistula in patients undergoing distal pancreatectomy (DP) and to determine the effectiveness of using a stapled and a sutured closed of pancreatic stump. METHODS: Sixty-four patients underwent DP during a 10-year period. Information regarding diagnosis, operative details, and perioperative morbidity or mortality was collected. Eight risk factors were examined. RESULTS: Indications for DP included primary pancreatic disease (n = 38, 59%) and non-pancreatic malignancy (n = 26, 41%). Postoperative mortality and morbidity rates were 1.5% and 37% respectively; one patient died due to sepsis and two patients required a reoperation due to postoperative bleeding. Pancreatic fistula was developed in 14 patients (22%); 4 of fistulas were classified as Grade A, 9 as Grade B and only 1 as Grade C. Incidence of pancreatic fistula rate was significantly associated with four risk factors: pathology, use of prophylactic octreotide therapy, concomitant splenectomy, and texture of pancreatic parenchyma. The role that technique (either stapler or suture) of pancreatic stump closure plays in the development of pancreatic leak remains unclear. CONCLUSION: The pancreatic fistula rate after DP is 22%. This is reduced for patients with non-pancreatic malignancy, fibrotic pancreatic tissue, postoperative prophylactic octreotide therapy and concomitant splenectomy.Marco Pericoli Ridolfini Sergio Alfieri Stavros Gourgiotis Dario Di Miceli Fabio Rotondi Giuseppe Quero Roberta Manghi Giovanni Battista Doglietto 2007World Journal of Gastroenterology2007,13,38:24
4Pancreatic metastases from renal cell carcinoma:The state of the art显示文摘Pancreatic metastases are rare,with a reported incidence varying from 1.6%to 11%in autopsy studies of patients with advanced malignancy.In clinical series,the frequency of pancreatic metastases ranges from 2%to 5%of all pancreatic malignant tumors.However,the pancreas is an elective site for metastases from carcinoma of the kidney and this peculiarity has been reported by several studies.The epidemiology,clinical presentation,and treatment of pancreatic metastases from renal cell carcinoma are known from singleinstitution case reports and literature reviews.Thereis currently very limited experience with the surgical resection of isolated pancreatic metastasis,and the role of surgery in the management of these patients has not been clearly defined.In fact,for many years pancreatic resections were associated with high rates of morbidity and mortality,and metastatic disease to the pancreas was considered to be a terminal-stage condition.More recently,a significant reduction in the operative risk following major pancreatic surgery has been demonstrated,thus extending the indication for these operations to patients with metastatic disease.Roberto Ballarin Mario Spaggiari Nicola Cautero Nicola De Ruvo Roberto Montalti Cristina Longo Anna Pecchi Patrizia Giacobazzi Giuseppina De Marco Giuseppe D’Amico Giorgio Enrico Gerunda Fabrizio Di Benedetto 2011World Journal of Gastroenterology2011,17,43:21
5Splanchnic vasodilation and hyperdynamic circulatory syndrome in cirrhosis显示文摘Portal hypertension is a clinical syndrome which leads to several clinical complications,such as the formation and rupture of esophageal and/or gastric varices,ascites,hepatic encephalopathy and hepato-renal syndrome.In cirrhosis,the primary cause of the increase in portal pressure is the enhanced resistance to portal outflow.However,also an increase in splanchnic blood flow worsens and maintains portal hypertension.The vasodilatation of arterial splanchnic vessels and the opening of collateral circulation are the determinants of the increased splanchnic blood flow.Several vasoactive systems/substances,such as nitric oxide,cyclooxygenase-derivatives,carbon monoxide and endogenous cannabinoids are activated in portal hypertension and are responsible for the marked splanchnic vasodilatation.Moreover,an impaired reactivity to vasoconstrictor systems,such as the sympathetic nervous system,vasopressin,angiotensinⅡand endothelin-1,plays a role in this process.The opening of collateral circulation occurs through the reperfusion and dilatation of preexisting vessels,but also through the generation of new vessels.Splanchnic vasodilatation leads to the onset of the hyperdynamic circulatory syndrome,a syndrome which occurs in pa-tients with portal hypertension and is characterized by increased cardiac output and heart rate,and decreased systemic vascular resistance with low arterial blood pressure.Understanding the pathophysiology of splanchnic vasodilatation and hyperdynamic circulatory syndrome is mandatory for the prevention and treatment of portal hypertension and its severe complications.Massimo Bolognesi Marco Di Pascoli Alberto Verardo Angelo Gatta 2014World Journal of Gastroenterology2014,20,10:21
6Performance of liver stiffness measurements by transient elastography in chronic hepatitis显示文摘AIM:To compare results of liver stiffness measurements by transient elastography(TE) obtained in our patients population with that used in a recently published meta-analysis.METHODS:This was a single center cross-sectional study.Consecutive patients with chronic viral hepatitis scheduled for liver biopsy at the outpatient ward of our Infectious Diseases Department were enrolled.TE was carried out by using FibroScan(Echosens,Paris,France).Liver biopsy was performed on the same day as TE,as day case procedure.Fibrosis was staged according to the Metavir scoring system.The diagnostic performance of TE was assessed by using receiver operating characteristic(ROC) curves and the area under the ROC curve analysis.RESULTS:Two hundred and fifty-two patients met the inclusion criteria.Six(2%) patients were excluded due to unreliable TE measurements.Thus,246(171 men and 75 women) patients were analyzed.One hundred and ninety-five(79.3%) patients had chronic hepatitis C,41(16.7%) had chronic hepatitis B,and 10(4.0%) were coinfected with human immunodeficiency virus.ROC curve analysis identified optimal cut-off value of TE as high as 6.9 kPa forF ≥ 2;7.9 kPa forF ≥ 3;9.6 kPa for F = 4 in all patients(n = 246),and as high as 6.9 kPa for F ≥ 2;7.3 kPa for F ≥ 3;9.3 kPa for F = 4 in patients with hepatitis C(n = 195).Cut-off values of TE obtained by maximizing only the specificity were as high as 6.9 kPa for F ≥ 2;9.6 kPa for F ≥ 3;12.2 kPa for F = 4 in all patients(n = 246),and as high as 7.0 kPa forF ≥ 2;9.3 kPa forF ≥ 3;12.3 kPa forF = 4 in patients with hepatitis C(n = 195).CONCLUSION:The cut-off values of TE obtained in this single center study are comparable to that obtained in a recently published meta-analysis that included up to 40 studies.Giovanna Ferraioli Carmine Tinelli Barbara Dal Bello Mabel Zicchetti Raffaella Lissandrin Gaetano Filice Carlo Filice Elisabetta Above Giorgio Barbarini Enrico Brunetti Willy Calderon Marta Di Gregorio Roberto Gulminetti Paolo Lanzarini Serena Ludovisi Laura Maiocchi Antonello Malfitano Giuseppe Michelone Lorenzo Minoli Mario Mondelli Stefano Novati Savino FA Patruno Alessandro Perretti Gianluigi Poma Paolo Sacchi Domenico Zanaboni Marco Zaramella 2013World Journal of Gastroenterology2013,19,1:18
7Computed tomography findings of pneumatosis and portomesenteric venous gas in acute bowel ischemia显示文摘AIM:To use more representative sample size to evaluate whether computed tomography(CT)scan evidence of the concomitant presence of pneumatosis and portomesenteric venous gas is a predictor of transmural bowel necrosis.METHODS:Data from 208 patients who were referred for a diagnosis of bowel ischemia were retrospectively reviewed.Only patients who underwent a surgical intervention following a diagnosis of bowel ischemia who also had a post-operative histological confirmation of such a diagnosis were included.Patients were split into two groups according to the presence of histological evidence of transmural bowel ischemia(case group)or partial bowel ischemia(control group).CT images were reviewed for findings of ischemia,including mural thickening,pneumatosis,bowel distension,portomesenteric venous gas and arterial or venous thrombi.RESULTS:A total of 248 subjects who underwent surgery for bowel ischemia were identified.Among the208 subjects enrolled in our study,transmural bowel necrosis was identified in 121 subjects(case group),and partial bowel necrosis was identified in 87 subjects(control group).Based on CT findings,including mural thickening,bowel distension,pneumatosis,pneumatosis plus portomesenteric venous gas and presence of thrombi or emboli,there were no significant differences between the case and control groups.The concomitant presence of pneumatosis and porto-mesenteric venous gas showed an odds ratio of 1.95(95%CI:0.491-7.775,P=0.342)for the presence of transmural necrosis.The presence of pneumatosis plus porto-mesenteric venous gas exhibited good specificity(83%)but low sensitivity(17%)in the identification of transmural bowel infarction.Accordingly,the positive and negative predictive values were 60% and 17%,respectively.CONCLUSION:Although pneumatosis plus porto-mesenteric venous gas is associated with bowel ischemia,we have demonstrated that their co-occurrence cannot be used as diagnostic signs of transmural necrosis.Marco Milone Matteo Nicola Dario Di Minno Mario Musella Paola Maietta Vittorio Iaccarino Giovanni Barone Francesco Milone 2013World Journal of Gastroenterology2013,19,39:15
8Accuracy and responses of genomic selection on key traits in apple breeding显示文摘The application of genomic selection in fruit tree crops is expected to enhance breeding eficiency by increasing prediction accuracy,increasing selection intensity and decreasing generation interval.The objectives of this study were to assess the accuracy of prediction and selection response in commercial apple breeding programmes for key traits.The training population comprised 977 individuals derived from 20 pedigreed fllsib families.Historic phenotypic data were available on 10 traits related to productivity and fruit external appearance and genotypic data for 7829 SNPs obtained with an llumina 20K SNP array.From these data,a genome-wide prediction model was built and subsequently used to calculate genomic breeding values of five application fllsib families.The application families had genotypes at 364 SNPs from a dedicated 512 SNP array,and these genotypic data were extended to the high-density level by imputation.These five families were phenotyped for 1 year and their phenotypes were compared to the predicted breeding values.Accuracy of genomic prediction across the 10 traits reached a maximum value of 0.5 and had a median value of 0.19.The accuracies were strongly affected by the phenotypic distribution and heritability of traits.In the largest family,significant selection response was observed for traits with high heritability and symmetric phenotypic distribution.Traits that showed non-significant response often had reduced and skewed phenotypic variation or low heritability.Among the five application families the accuracies were uncorrelated to the degree of relatedness to the training population.The results underline the potential of genomic prediction to accelerate breeding progress in outbred fruit tree crops that still need to overcome long generation intervals and extensive phenotyping costs.Hélène Muranty Michela Troggio Inès Ben Sadok Mehdi Al Rifaï Annemarie Auwerkerken Elisa Banchi Riccardo Velasco Piergiorgio Stevanato W.Eric van de Weg Mario Di Guardo Satish Kumar François Laurens Marco C.A.M.Bink 2015Horticulture Research2015,2,1:14
9Reconfigurable intelligent surfaces for smart wireless environments:channel estimation,system design and applications in 6G networks显示文摘Reconfigurable intelligent surface(RIS),one of the key enablers for the sixth-generation(6G)mobile communication networks,is considered by designers to smartly reconfigure the wireless propagation environment in a controllable and programmable manner.Specifically,an RIS consists of a large number of low-cost and passive reflective elements(REs)without radio frequency chains.The system gain of RIS wireless systems can be achieved by adjusting the phase shifts and amplitudes of the REs so that the desired signals can be added constructively at the receiver.However,an RIS typically has limited signal processing capability and cannot perform active transmitting/receiving in general,which leads to new challenges in the physical layer design of RIS wireless systems.In this paper,we provide an overview of the RIS-aided wireless systems,including the reflection principle,channel estimation,and system design.In particular,two types of emerging RIS systems are considered:RIS-aided wireless communications(RAWC)and RISbased information transmission(RBIT),where the RIS plays the role of the reflector and the transmitter,respectively.We also envision the potential applications of RIS in 6G networks.Ying-Chang LIANG Jie CHEN Ruizhe LONG Zhen-Qing HE Xianqi LIN Chenlu HUANG Shilin LIU Xuemin(Sherman)SHEN Marco DI RENZO 2021Science China(Information Sciences)2021,64,10:12
10Sonographic markers for early diagnosis of fetal malformations显示文摘Fetal malformations are very frequent in industrialized countries.Although advanced maternal age may affect pregnancy outcome adversely,80%-90%of fetal malformations occur in the absence of a specific risk factor for parents.The only effective approach for prenatal screening is currently represented by an ultrasound scan.However,ultrasound methods present two important limitations:the substantial absence of quantitative parameters and the dependence on the sonographer experience.In recent years,together with the improvement in transducer technology,quantitative and objective sonographic markers highly predictive of fetal malformations have been developed.These markers can be detected at early gestation(11-14 wk)and generally are not pathological in themselves but have an increased incidence in abnormal fetuses.Thus,prenatal ultrasonography during the second trimester of gestation provides a'genetic sonogram',including,for instance,nuchal translucency,short humeral length,echogenic bowel,echogenic intracardiac focus and choroid plexus cyst,that is used to identify morphological features of fetal Down’s syndrome with a potential sensitivity of more than 90%.Other specific and sensitive markers can be seen in the case of cardiac defects and skeletal anomalies.In the future,sonographic markers could limit even more the use of invasive and dangerous techniques of prenatal diagnosis(amniocentesis,etc.).Maria Daniela Renna Paola Pisani Francesco Conversano Emanuele Perrone Ernesto Casciaro Gian Carlo Di Renzo Marco Di Paola Antonio Perrone Sergio Casciaro 2013World Journal of Radiology2013,5,10:12
11Clinical role of non-invasive assessment of portal hypertension显示文摘Measurement of portal pressure is pivotal in the evaluation of patients with liver cirrhosis. The measurement of the hepatic venous pressure gradient represents the reference method by which portal pressure is estimated. However, it is an invasive procedure that requires significant hospital resources, including experienced staff, and is associated with considerable cost. Non-invasive methods that can be reliably used to estimate the presence and the degree of portal hypertension are urgently needed in clinical practice. Biochemical and morphological parameters have been proposed for this purpose, but have shown disappointing results overall. Splanchnic Doppler ultrasonography and the analysis of microbubble contrast agent kinetics with contrast-enhanced ultrasonography have shown better accuracy for the evaluation of patients with portal hypertension. A key advancement in the non-invasive evaluation of portal hypertension has been the introduction in clinical practice of methods able to measure stiffness in the liver, as well as stiffness/congestion in the spleen. According to the data published to date, it appears to be possible to rule out clinically significant portal hypertension in patients with cirrhosis(i.e., hepatic venous pressure gradient ≥ 10 mm Hg) with a level of clinically-acceptable accuracy by combining measurements of liver stiffness and spleen stiffness along with Doppler ultrasound evaluation. It is probable that the combination of these methods may also allow for the identification of patients with the most serious degree of portal hypertension, and ongoing research is helping to ensure progress in this field.Massimo Bolognesi Marco Di Pascoli David Sacerdoti 2017World Journal of Gastroenterology2017,23,1:12
12The enhanced X-ray Timing and Polarimetry mission—eXTP显示文摘In this paper we present the enhanced X-ray Timing and Polarimetry mission—eXTP. eXTP is a space science mission designed to study fundamental physics under extreme conditions of density, gravity and magnetism. The mission aims at determining the equation of state of matter at supra-nuclear density, measuring effects of QED, and understanding the dynamics of matter in strong-field gravity. In addition to investigating fundamental physics, eXTP will be a very powerful observatory for astrophysics that will provide observations of unprecedented quality on a variety of galactic and extragalactic objects. In particular, its wide field monitoring capabilities will be highly instrumental to detect the electro-magnetic counterparts of gravitational wave sources.The paper provides a detailed description of:(1) the technological and technical aspects, and the expected performance of the instruments of the scientific payload;(2) the elements and functions of the mission, from the spacecraft to the ground segment.ShuangNan Zhang Andrea Santangelo Marco Feroci YuPeng Xu FangJun Lu Yong Chen Hua Feng Shu Zhang Sφren Brandt Margarita Hernanz Luca Baldini Enrico Bozzo Riccardo Campana Alessandra De Rosa YongWei Dong Yuri Evangelista Vladimir Karas Norbert Meidinger Aline Meuris Kirpal Nandra Teng Pan Giovanni Pareschi Piotr Orleanski QiuShi Huang Stephane Schanne Giorgia Sironi Daniele Spiga Jiri Svoboda Gianpiero Tagliaferri Christoph Tenzer Andrea Vacchi Silvia Zane Dave Walton ZhanShan Wang Berend Winter Xin Wu Jean J.M.in't Zand Mahdi Ahangarianabhari Giovanni Ambrosi Filippo Ambrosino Marco Barbera Stefano Basso Jörg Bayer Ronaldo Bellazzini Pierluigi Bellutti Bruna Bertucci Giuseppe Bertuccio Giacomo Borghi XueLei Cao Franck Cadoux Francesco Ceraudo TianXiang Chen Yu Peng Chen Jerome Chevenez Marta Civitani Wei Cui WeiWei Cui Thomas Dauser Ettore Del Monte Sergio Di Cosimo Sebastian Diebold Victor Doroshenko Michal Dovciak YuanYuan Du Lorenzo Ducci QingMei Fan Yannick Favre Fabio Fuschino JoséLuis Ga'lvez Min Gao MingYu Ge Olivier Gevin Marco Grassi QuanYing Gu YuDong Gu DaWei Han Bin Hong Wei Hu Long Ji ShuMei Jia WeiChun Jiang Thomas Kennedy Ingo Kreykenbohm Irfan Kuvvetli Claudio Labanti Luca Latronico Gang Li MaoShun Li Xian Li Wei Li ZhengWei Li Olivier Limousin HongWei Liu XiaoJing Liu Bo Lu Tao Luo Daniele Macera Piero Malcovati Adrian Martindale Malgorzata Michalska Bin Meng Massimo Minuti Alfredo Morbidini Fabio Muleri Stephane Paltani Emanuele Perinati Antonino Picciotto Claudio Piemonte JinLu Qu Alexandre Rachevski Irina Rashevskaya Jerome Rodriguez Thomas Schanz ZhengXiang Shen LiZhi Sheng JiangBo Song LiMing Song Carmelo Sgro Liang Sun Ying Tan Phil Uttley Bo Wang DianLong Wang GuoFeng Wang Juan Wang LangPing Wang YuSa Wang Anna L.Watts XiangYang Wen Jörn Wilms ShaoLin Xiong JiaWei Yang Sheng Yang YanJi Yang Nian Yu WenDa Zhang Gianluigi Zampa Nicola Zampa Andrzej A.Zdziarski AiMei Zhang ChengMo Zhang Fan Zhang Long Zhang Tong Zhang Yi Zhang XiaoLi Zhang ZiLiang Zhang BaoSheng Zhao ShiJie Zheng Yu Peng Zhou Nicola Zorzi J.Frans Zwart 2019Science China(Physics,Mechanics & Astronomy)2019,62,2:11
13Role of liver biopsy in hepatocellular carcinoma显示文摘The role of liver biopsy in the diagnosis of hepatocellular carcinoma(HCC)has been challenged over time by the ability of imaging techniques to characterize liver lesions in patients with known cirrhosis.In fact,in the diagnostic algorithm for this tumor,histology is currently relegated to controversial cases.Furthermore,the risk of complications,such as tumor seeding and bleeding,as well as inadequate sampling have further limited the use of liver biopsy for HCC management.However,there is growing evidence of prognostic and therapeutic information available from microscopic and molecular analysis of HCC and,as the information content of the tissue sample increases,the advantages of liver biopsy might modify the current risk/benefit ratio.We herein review the role and potentiality of liver biopsy in the diagnosis and management of HCC.As the potentiality of precision medicine comes to the management of HCC,it will be crucial to have rapid pathways to define prognosis,and even treatment,by identifying the patients who could most benefit from target-driven therapies.All of the above reasons suggest that the current role of liver biopsy in the management of HCC needs substantial reconsideration.Luca Di Tommaso Marco Spadaccini Matteo Donadon Nicola Personeni Abubaker Elamin Alessio Aghemo Ana Lleo 2019World Journal of Gastroenterology2019,25,40:11
14untreatable hepatocellular 癌的自然历史: 回顾的队研究显示文摘 AIM:To investigate the clinical course of untreatable hepatocellular carcinoma(HCC) identified at any stage and to identify factors associated with mortality.METHODS:From January 1999 to December 2010,320 out of 825 consecutive patients with a diagnosis of HCC and not appropriate for curative or palliative treatments were followed and managed with supportive therapy.Cirrhosis was diagnosed by histological or clinical features and liver function was evaluated according to Child-Pugh score.The diagnosis of HCC was performed by Ultra-Sound guided biopsy or by multiphasic contrast-enhanced computed tomography or gadolinium-enhanced magnetic resonance imaging.Data were collected for each patient including all clinical,laboratory and imaging variables necessary for the outcome prediction staging systems considered.HCC staging was performed according Barcelona Clinic Liver Cancer(BCLC) and Cancer of the Liver Italian Program scores.Follow-up time was defined as the number of months from the diagnosis of HCC to death.Prognostic baseline variables were analyzed by multivariate Cox analysis to identify the independent predictors of survival.RESULTS:Seventy-five per cent of patients had hepatitis C.Ascites was present in 169 patients(53%),while hepatic encephalopathy was present in 49 patients(15%).The Child-Pugh score was class A in 105 patients(33%),class B in 142 patients(44%),and class C in 73 patients(23%).One hundred patients(31%) had macroscopic vascular invasion and/or extrahepatic spread of the tumor.A single lesion > 10 cm was observed in 34 patients(11%),while multinodular HCC was present in 189 patients(59%).Thirty nine patients(12%) were BCLC early(A) stage,55(17%) were BCLC intermediate(B) stage,124(39%) were BCLC advanced(C) stage,and 102(32%) were endstage BCLC(D).At the time of this analysis(July 2011),28(9%) patients were still alive.Six(2%) patients who were lost during follow-up were censored at the last visit.The overall median survival was 6.8 mo,and the 1-year survival was 32%.The 1-year survival according to BCLC classes was 100%,79%,12% and 0%,for BCLC A,B,C and D,respectively.There was a significant difference in survival between each BCLC class.The median survival of patients of BCLC stages A,B,C and D was 33,17.4,6.9,and 1.8 mo,respectively(P < 0.05 for comparison between stages).The median survival of Child-Pugh A,B and C classes were 9.8 mo(range 6.4-13),6.1(range 4.9-7.3),and 3.7(range 1.5-6),respectively(P < 0.05 for comparison between stages).By univariate analysis,the variables significantly associated to an increased liklihood of mortality were Eastern Cooperative Oncology Group performance status(PS),presence of ascites,low level of albumin,elevated level of bilirubin,international normalized ratio(INR) and Log-[(α fetoprotein(AFP)].At multivariate analysis,mortality was independently predicted by bad PS(P < 0.0001),high INR values(P = 0.0001) and elevated Log-(AFP) levels(P = 0.009).CONCLUSION:This study confirms the heterogeneous behavior of untreated HCC.BCLC staging remains an important prognostic guide and may be important in decision-making for palliative treatment.Giuseppe Cabibbo Marcello Maida Chiara Genco Pietro Parisi Marco Peralta Michela Antonucci Giuseppe Brancatelli Calogero Cammà Antonio Craxì Vito Di Marco 2012World Journal of Hepatology2012,4,9:11
15英国胃肠病学会关于胃癌风险患者的诊断和管理指南显示文摘胃癌预后较差,部分原因在于诊断较晚。胃癌的危险因素包括幽门螺杆菌(H.pylori,HP)感染和胃癌家族史,尤其是遗传性弥漫性胃癌和恶性贫血。胃癌发展的阶段包括慢性胃炎、胃黏膜萎缩(GA)、胃黏膜肠化生(GIM)和异型增生。胃癌早期发现和提高生存率的关键是在内镜检查前以非侵入性方式识别高危人群。然而,尽管生物标志物可能有助于检测慢性萎缩性胃炎,但尚无足够的证据支持其用于人群筛查。高质量内镜检查是胃癌早期发现的重要组成部分,图像增强内镜结合组织病理学活检是GA和GIM最佳的诊断方法,并能准确进行风险分层。按照悉尼标准从胃窦、角切迹、小弯和大弯进行活检,既能明确诊断,也能对胃癌进行风险分层。理想状态应当是在高质量内镜检查中对GA或GIM区域活检。英国属于低危地区,可根据需要接受常规诊断性胃镜检查,但没有足够证据支持筛查,对于广泛GA或GIM的患者,每3年检查内镜。对于胃异型增生和早期癌,只要满足标准,内镜下黏膜切除术或内镜黏膜下剥离术的治疗有效,成功率高,复发率低。Matthew Banks David Graham Marnix Jansen TakujiGotoda Sergio Coda Massimiliano di Pietro NoriyaUedo Pradeep Bhandari D Mark Pritchard Ernst J Kuipers Manuel Rodriguez-Justo Marco R Novelli KrishRagunath Neil Shepherd Mario Dinis-Ribeiro 乌雅罕(译) 张冬雪(译) 牛占岳(校) 刘鑫(校) 丁士刚(译/校) 2020中华胃肠内镜电子杂志2020,7,2:10
16Acute appendicitis: What is the gold standard of treatment?显示文摘McBurney’s procedure represented the gold-standard for acute appendicitis until 1981,but nowadays the number of laparoscopic appendectomies has progressively increased since it has been demonstrated to be a safe procedure,with excellent cosmetic results and it also allows a shorter hospitalization,a quicker and less painful postoperative recovery.The aim of this editorial was to perform a review of the literature in order to address controversial issues in the treatment of acute appendicitis.Cesare Ruffolo Alain Fiorot Giulia Pagura Michele Antoniutti Marco Massani Ezio Caratozzolo Luca Bonariol Francesco Calia di Pinto Nicolò Bassi 2013World Journal of Gastroenterology2013,19,47:8
17Long-term outcomes after laparoscopic colectomy显示文摘AIM:To evaluate long-term outcomes in a large series of patients who randomly received laparoscopic or open colorectal resection.METHODS:From February 2000 to December 2004,six hundred sixty-two patients with colorectal disease were randomly assigned to laparoscopic(LPS,n = 330) or open(n = 332) colorectal resection.All patients were analyzed on an intention-to-treat basis.Long-term follow-up was carried out every 6 mo by office visits.In 526 cancer patients five-year overall and disease-free survival were evaluated.Median oncologic follow-up was 96 mo.RESULTS:Eight(4.2%) LPS group patients needed conversion to open surgery.Overall long-term morbidity rate was 7.6%(25/330) in the LPS vs 11.1%(37/332) in the open group(P = 0.17).In cancer patients,fiveyear overall survival was 68.6% in the LPS group and 64.0% in the Open group(P = 0.27).Excluding stage Ⅳ patients,five-year local and distant recurrence rates were 32.5% in the LPS group and 36.8% in the Open group(P = 0.36).Further,no difference in recurrence rate was found when patients were stratified according to cancer stage.CONCLUSION:LPS colorectal resection was associated with a slightly lower incidence of long-term complications than open surgery.No difference between groups was found in overall and disease-free survival rates.Marco Braga Nicolò Pecorelli Matteo Frasson Andrea Vignali Walter Zuliani Valerio Di Carlo 2011World Journal of Gastrointestinal Oncology2011,3,3:8
18Analysis of surgical and perioperative complications in seventy-five right hepatectomies for living donor liver transplantation显示文摘AIM: To present an analysis of the surgical and perioperative complications in a series of seventy- five right hepatectomies for living-donation (RHLD) performed in our center. METHODS: From January 2002 to September 2007, we performed 75 RHLD, defined as removal of a portion of the liver corresponding to Couinaud segments 5-8, in order to obtain a graft for adult to adult living-related liver transplantation (ALRLT). Surgical complications were stratified according to the most recent version of the Clavien classification of postoperative surgical complications. The perioperative period was defined as within 90 d of surgery. RESULTS: No living donor mortality was present in this series, no donor operation was aborted and no donors received any blood transfusion. Twenty- three (30.6%) living donors presented one or more episodes of complication in the perioperative period. Seven patients (9.33%) out of 75 developed biliary complications, which were the most common complications in our series.CONCLUSION: The need to define, categorize and record complications when healthy individuals, such as living donors, undergo a major surgical procedure, such as a right hepatectomy, reflects the need for prompt and detailed reports of complications arising in this particular category of patient. Perioperative complications and post resection liver regeneration are not influenced by anatomic variations or patient demographic.Salvatore Gruttadauria James Wallis Marsh Giovan Battista Vizzini Fabrizio di Francesco Angelo Luca Riccardo Volpes Amadeo Marcos Bruno Gridelli 2008World Journal of Gastroenterology2008,14,20:7
19Radiofrequency ablation for early oesophageal squamous neoplasia:Outcomes form United Kingdom registry显示文摘AIM:To report outcomes on patients undergoing radiofrequency ablation(RFA)for early oesophageal squamous neoplasia from a National Registry.METHODS:A Prospective cohort study from 8 tertiary referral centres in the United Kingdom.Patients with squamous high grade dysplasia(HGD)and early squamous cell carcinoma(ESCC)confined to the mucosa were treated.Visible lesions were removed by endoscopic mucosal resection(EMR)before RFA.Following initial RFA treatment,patients were followed up 3monthly.Residual flat dysplasia was treated with RFA until complete reversal dysplasia(CR-D)was achieved or progression to invasive Squamous cell cancer defined as infiltration into the submucosa layer or beyond.The main outcome measures were CR-D at 12 mo from start of treatment,long term durability,progression to cancer and adverse events.RESULTS:Twenty patients with squamous HGD/ESCC completed treatment protocol.Five patients(25%)had EMR before starting RFA treatment.CR-D was 50%at12 mo with a median of 1 RFA treatment,mean 1.5(range 1-3).Two further patients achieved CR-D with repeat RFA after this time.Eighty per cent with CR-D remain dysplasia free at latest biopsy,with median follow up 24 mo(IQR 17-54).Six of 20 patients(30%)progressed to invasive cancer at 1 year.Four patients(20%)required endoscopic dilatations for symptomatic structuring after treatment.Two of these patients have required serial dilatations thereafter for symptomatic dysphagia with a median of 4 dilatations per patient.The other 2 patients required only a single dilatation to achieve an adequate symptomatic response.One patient developed cancer during follow up after end of treatment protocol.CONCLUSION:The role of RFA in these patients re-mains unclear.In our series 50%patients responded at12 mo.These figures are lower than limited published data.Rehan J Haidry Mohammed A Butt Jason Dunn Matthew Banks Abhinav Gupta Howard Smart Pradeep Bhandari Lesley Ann Smith Robert Willert Grant Fullarton Morris John Massimo Di Pietro Ian Penman Marco Novelli Laurence B Lovat 2013World Journal of Gastroenterology2013,19,36:7
20Hyperferritinemia is a risk factor for steatosis in chronic liver disease显示文摘AIM: To investigate the relationship between ferritin and steatosis in patients with chronically abnormal liver function tests (LFTs) and high ferritin level. METHODS: One hundred and twenty-four consecutive patients with hyperferritinemia (male > 300 ng/mL, female > 200 ng/mL) were evaluated; clinical, biochemical and serological data, iron status parameters, HFE gene mutations and homeostasis model assessment score were obtained. Steatosis was graded by ultrasound as absent or present. Histology was available in 53 patients only. RESULTS: Mean level of ferritin was 881 ± 77 ng/mL in men and 549 ± 82 ng/mL in women. The diagnosis was chronic hepatitis C in 53 (42.7%), non-alcoholic fatty liver disease/non-alcoholic steatohepatitis in 57 (45.9%), and cryptogenic liver damage in 14 (11.3%). None was diagnosed as hereditary hemochromatosis (HH). Hepatic siderosis on liver biopsy was present in 17 of 54 (32%) patients; grade 1 in eight and grade 2 in nine. Overall, 92 patients (74.2%) had steatosis. By logistic regression, ferritin and γ-glutamyltransferase were independent predictors of steatosis. Ferritin levels were signifi cantly related to low platelet count, steatosis and hepatitis C virus infection. CONCLUSION: In a non-obese cohort of non-alcoholic patients with chronically abnormal LFTs without HH, high serum ferritin level is a risk factor for steatosis.Anna Licata Maria Elena Nebbia Giuseppe Cabibbo Giovanna Lo Iacono Francesco Barbaria Virna Brucato Nicola Alessi Salvatore Porrovecchio Vito Di Marco Antonio Craxì Calogero Cammà 2009World Journal of Gastroenterology2009,15,17:6
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