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| 1 | Computed tomography-guided percutaneous core needle biopsy in pancreatic tumor diagnosis显示文摘AIM: To evaluate the techniques, results, and complications related to computed tomography(CT)-guided percutaneous core needle biopsies of solid pancreatic lesions.METHODS: CT-guided percutaneous biopsies of solid pancreatic lesions performed at a cancer reference center between January 2012 and September 2013 were retrospectively analyzed. Biopsy material was collected with a 16-20 G Tru-Core needle(10-15 cm; Angiotech, Vancouver, CA) using a coaxial system and automatic biopsy gun. When direct access to the lesion was not possible, indirect(transgastric or transhepatic) access or hydrodissection and/or pneumodissection maneuvers were used. Characteristics of the patients, lesions, procedures, and histologic results were recorded using a standardized form. RESULTS: A total of 103 procedures included in the study were performed on patients with a mean age of 64.8 year(range: 39-94 year). The mean size of the pancreatic lesions was 45.5 mm(range: 15-195 mm). Most(75/103, 72.8%) procedures were performed via direct access, though hydrodissection and/or pneumodissection were used in 22.2%(23/103) of cases and indirect transhepatic or transgastric access was used in 4.8%(5/103) of cases. Histologic analysis was performed on all biopsies, and diagnoses were conclusive in 98.1%(101/103) of cases, confirming3.9%(4/103) of tumors were benign and 94.2%(97/103) were malignant; results were atypical in 1.9%(2/103) of cases, requiring a repeat biopsy to diagnose a neuroendocrine tumor, and surgical resection to confirm a primary adenocarcinoma. Only mild/moderate complications were observed in 9/103 patients(8.7%),and they were more commonly associated with biopsies of lesions located in the head/uncinate process(n =8), than of those located in the body/tail(n = 1) of the pancreas, but this difference was not significant.CONCLUSION: CT-guided biopsy of a pancreatic lesion is a safe procedure with a high success rate, and is an excellent option for minimally invasive diagnosis. | Chiang J Tyng Maria Fernanda A Almeida Paula NV Barbosa Almir GV Bitencourt José Augusto AG Berg Macello S Maciel Felipe JF Coimbra Luiz Henrique O Schiavon Maria Dirlei Begnami Marcos D Guimares Charles E Zurstrassen Rubens Chojniak | 2015 | World Journal of Gastroenterology2015，21，12： | 14 |
| 2 | Endoscopic stenting for inoperable malignant biliary obstruction: A systematic review and meta-analysis显示文摘AIM: To analyze through meta-analyses the benefits of two types of stents in the inoperable malignant biliary obstruction.METHODS: A systematic review of randomized clinical trials(RCT) was conducted, with the last update on March 2015, using EMBASE, CINAHL(EBSCO), MEDLINE, LILACS/CENTRAL(BVS), SCOPUS, CAPES(Brazil), and gray literature. Information of the selected studies was extracted in sight of six outcomes: primarily regarding dysfunction, complication and reintervention rates; and secondarily costs, survival, and patency time. The data about characteristics of trial participants, inclusion and exclusion criteria and types of stents were also extracted. The bias was mainly assessed through the JADAD scale. This meta-analysis was registered in the PROSPERO database by the number CRD42014015078. The analysis of the absolute risk of the outcomes was performed using the software Rev Man, by computing risk differences(RD) of dichotomous variables and mean differences(MD) of continuous variables. Data on RD and MD for each primary outcome were calculated using the MantelHaenszel test and inconsistency was qualified and reported in χ2 and the Higgins method(I2). Sensitivity analysis was performed when heterogeneity was higher than 50%, a subsequent assay was done and other findings were compiled. Student's t-test was used for the comparison of weighted arithmetic means regarding secondary outcomes.RESULTS: Initial searching identified 3660 studies; 3539 were excluded through title, repetition, and/or abstract, while 121 studies were fully assessed and were excluded mainly because they did not compare self-expanding metal stents(SEMS) and plastic stents(PS), leading to thirteen RCT selected, with 13 articles and 1133 subjects meta-analyzed. The mean age was 69.5 years old, that were affected mostly by bile duct(proximal) and pancreatic tumors(distal). The preferred SEMS diameter used was the 10 mm(30 Fr) and the preferred PS diameter used was 10 Fr. In the metaanalysis, SEMS had lower overall stent dysfunction compared to PS(21.6% vs 46.8%, P < 0.00001) and fewer re-interventions(21.6% vs 56.6%, P < 0.00001), with no difference in complications(13.7% vs 15.9%, P = 0.16). In the secondary analysis, the mean survival rate was higher in the SEMS group(182 d vs 150 d, P < 0.0001), with a higher patency period(250 d vs 124 d, P < 0.0001) and a lower cost per patient(4193.98 vs 4728.65 Euros, P < 0.0985).CONCLUSION: SEMS are associated with lower stent dysfunction, lower re-intervention rates, better survival, and higher patency time. Complications and costs showed no difference. | Leonardo Zorrón Pu Eduardo Guimaraes Hourneaux de Moura Wanderley Marques Bernardo Felipe Iankelevich Baracat Ernesto Quaresma Mendonca AndréKondo Gustavo Oliveira Luz Carlos Kiyoshi Furuya Júnior Everson Luiz de Almeida Artifon | 2015 | World Journal of Gastroenterology2015，21，47： | 10 |
| 3 | Benefit of stem cells and skeletal myoblast cells in dilated cardiomyopathies显示文摘Although some authors suggest that there is mitotic division in the heart,most cardiomyocytes do not have the capacity to regenerate after myocardial infarction and when this occurs there is a deterioration of contractile function,and if the area of infarction is extensive ventricular remodeling may occur,leading to the development of heart failure.Cell transplantation into the myocardium with the goal of recovery of cardiac function has been extensively studied in recent years. The effects of cell therapy are based directly on the cell type used and the type of cardiac pathology.For myocardial ischemia in the hibernating myocardium, bone marrow cells have functional benefits,however these results in transmural fibrosis are not evident. In these cases there is a benefit of implantation with skeletal myoblasts,for treating the underlying cause of disease,the loss of cell contractility. | Luiz César Guarita-Souza Júlio César Francisco Rossana Simeoni Jose Rocha Faria-Neto Katherine Athayde Teixeira de Carvalho | 2011 | World Journal of Cardiology2011，3，3： | 4 |
| 4 | Bone mineral density in cone beam computed tomography:Only a few shades of gray显示文摘Cone beam computed tomography(CBCT) has often been used to determine the quality of craniofacial bone structures through the determination of mineral density, which is based on gray scales of the images obtained. However, there is no consensus regarding the accuracy of the determination of the gray scales in these exams. This study aims to provide a literature review concerning the reliability of CBCT to determine bone mineral density. The gray values obtained with CBCT show a linear relationship with the attenuation coefficients of the materials, Hounsfield Units values obtained with medical computed tomography, and density values from dual energy X-ray absorciometry. However, errors are expected when CBCT images are used to define the quality of the scanned structures be-cause these images show inconsistencies and arbitrari-ness in the gray values, particularly when related to abrupt change in the density of the object, X-ray beam hardening effect, scattered radiation, projection data discontinuity-related effect, differences between CBCTdevices, changes in the volume of the field of view(FOV), and changes in the relationships of size and position between the FOV and the object evaluated. A few methods of mathematical correction of the gray scales in CBCT have been proposed; however, they do not generate consistent values that are independent of the devices and their configurations or of the scanned objects. Thus, CBCT should not be considered the ex-amination of choice for the determination of bone and soft tissue mineral density at the current stage, par-ticularly when values obtained are to be compared to predetermined standard values. Comparisons between symmetrically positioned structures inside the FOV and in relation to the exomass of the object, as it occurs with the right and left sides of the skull, seem to be viable because the effects on the gray scale in the re-gions of interest are the same. | Marcio José da Silva Campos Thainara Salgueiro de Souza Sergio Luiz Mota Júnior Marcelo Reis Fraga Robert Willer Farinazzo Vitral | 2014 | World Journal of Radiology2014，6，8： | 3 |
| 5 | Accelerating admixtures for shotcrete显示文摘 | LUIZ R P J | 1998 | Cement and Concrete Composites1998，20，： | 1 |
| 6 | Synthesis and characterization of silica/poly(methyl methacrylate) nanocomposite latex particles through emulsion polyme-rization using a cationic azo initiator显示文摘 | LUIZ J XAVIER L GUYOT A | 2002 | Journal of Colloid and Interface Science2002，250，： | 1 |
| 7 | Biotechnological applications of genetically modified Bacillus subtilis strains in the development of vaccines targeting different Escherichia coli pathotypes 显示文摘 | Luiz W Paccez J Ferreira R | 2009 | New Biotechnology2009，25，1： | 1 |
| 8 | Structural evolution of Eucalyptus tar pitch-based carbons during carbonization显示文摘 | MARCOS J P VANYA M D NELCY D S CHOYU O SATIKA O LUIZ C P | 2005 | Biomass Bioenergy2005，28，1： | 1 |
| 9 | A high - throughput method for determining chloramphenicol residues in poul- try, egg, shrimp, fish, swine and bovine using LC - ESI - MS/MS 显示文摘 | Rocha Siqueira SR Luiz Donato J de Nucci G | 2009 | Sep Sci2009，32，23： | 1 |
| 10 | Successful liver allograft inflow reconstruction with the right gastroepiploic vein显示文摘Portal vein thrombosis is a common complication in cirrhotic patients. When portal vein thrombectomy is not a suitable option, a large collateral vessel can be used for allograft venous inflow reconstruction. We describe an unusual case of successful portal revascularization using the right gastroepiploic vein. The patient underwent a cadaveric orthotopic liver transplantation with end-to-end anastomosis of the portal vein to the right gastroepiploic vein. Six months after liver transplantation the patient is well with good liver function. The use of the right gastroepiploic vein for allograft venous reconstruction is feasible and safe, with a great advantage of avoiding the need of venous jump graft. | Rafael S Pinheiro Ruy J Cruz Jr Lucas S Nacif Matheus F Vane Luiz AC D'Albuquerque | 2016 | Hepatobiliary & Pancreatic Diseases International2016，15，1： | 1 |
| 11 | Infrastrue- tural investment in long- run economic growth: South Africa 1875-2001 显示文摘 | FEDDERKE J W PERKINS P LUIZ J M | 2006 | World Development2006，34，6： | 1 |
| 12 | CTdatabase: aknowledge-base of high-throughput and curated data oncancer-testis antigens显示文摘 | Luiz G A Noboru J S Alice R O | | Nucleic Acids R e s0，37，： | 1 |
| 13 | Renal involvement in Henoch-Schonlein purpura: A multivariate analysis of initial prognostic factors显示文摘 | Luiz J Maria A Luciana B | 2007 | Jornal de Pediatria2007，83，3： | 1 |
| 14 | Rain forest on Maracá Island, Roraima, Brazil: soil and litter process response to artificial gaps显示文摘 | F.J Luiz?o J Proctor J Thompson R.C.C Luiz?o R.H Marrs D.A Scott V Viana | 1998 | Forest Ecology and Management1998，，2： | 1 |
| 15 | Methods for yeast characterization from industrial products 显示文摘 | LUIZ H G KEILA M R Duarte J L A etal | 2000 | Food Microbiol2000，17，： | 1 |
| 16 | Potential role of diffusion tensor MRI in the differential diagnosis of mild cognitive impairment and Alzheimer's disease显示文摘 | Daniella B P Emerson L G Luiz J | 2008 | AJR2008，190，51： | 1 |
| 17 | Developing pharmacy studentcommunication skills through role-playing and active learning显示文摘 | Luiz Adrian J A Zeszotarski P Ma C | 2015 | Am JPharai Educ2015，79，3： | 1 |
| 18 | Zangfuzheng ( pat- terns) are associated with clinical manifestations of zangshang ( target-organ damage ) in arterial hypertension 显示文摘 | Luiz A B Cordovil I Barbosa Filho J | 2011 | Chin Med (London)2011，，6： | 1 |
| 19 | Stable episomal expression system under control of a stress inducible promoter enhances the immunogenicity of Bacillus subtilis as a vector for antigen delivery显示文摘 | Paccez J D Luiz W B Sbrogio-Almeida M E | | 0，，： | 1 |
| 20 | Black carbon increases cation ex-change capacity in soils显示文摘 | Liang B Lehmann J Solomon D Kinyangi J Grossman J O′Neill B Skjemstad J.O Thies J Luiz?o F.J Petersen J | | 0，，05： | 1 |
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