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176篇 您的检索式:作者名="Felipe S"
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1Computed 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 Guimares Charles E Zurstrassen Rubens Chojniak 2015World Journal of Gastroenterology2015,21,12:14
2Laparoscopic approach in gastrointestinal emergencies显示文摘This review focuses on the laparoscopic approach to gastrointestinal emergencies and its more recent indications. Laparoscopic surgery has a specific place in elective procedures, but that does not apply in emergency situations. In specific emergencies, there is a huge range of indications and different techniques to apply, and not all of them are equally settle. We consider that the most controversial points in minimally invasive procedures are indications in emergency situations due to technical difficulties. Some pathologies, such as oesophageal emergencies, obstruction due to colon cancer, abdominal hernias or incarcerated postsurgical hernias, are nearly always resolved by conventional surgery, that is, an open approach due to limited intraabdominal cavity space or due to the vulnerability of the bowel. These technical problems have been solved in many diseases, such as for perforated peptic ulcer or acute appendectomy for which a laparoscopic approach has become a wellknown and globally supported procedure. On the other hand, endoscopic procedures have acquired further indications, relegating surgical solutions to a second place; this happens in cholangitis or pancreatic abscess drainage. This endoluminal approach avoids the need for laparoscopic development in these diseases. Nevertheless, new instruments and new technologies could extend the laparoscopic approach to a broader array of potentials procedures. There remains, however, a long way to go.Rosa M Jimenez Rodriguez Juan José Segura-Sampedro Mercedes Flores-Cortés Francisco López-Bernal Cristobalina Martín Verónica Pino Diaz Felipe Pareja Ciuro Javier Padillo Ruiz 2016World Journal of Gastroenterology2016,22,9:5
3Second-line Therapy With Levofloxacin After Failure of Treatment to Eradicate Helicobacter pylori Infection: Time Trends in a Spanish Multicenter Study of 1000 Patients显示文摘Javier P. Gisbert ángeles Pérez-Aisa Fernando Bermejo Manuel Castro-Fernández Pedro Almela Jesús Barrio ángel Cosme Inés Modolell Felipe Bory Miguel Fernández-Bermejo Luis Rodrigo Jesús Ortu?o Pilar Sánchez-Pobre Sam Khorrami Alejandro Franco Albert Tomas 2013Journal of Clinical Gastroenterology2013,,2:5
4Outcome in obscure gastrointestinal bleeding after capsule endoscopy显示文摘AIM: To investigate the clinical impact of capsule endoscopy(CE) after an obscure gastrointestinal bleeding(OGIB) episode, focusing on diagnostic work-up, followup and predictive factors of rebleeding. METHODS: Patients who were referred to Hospital del Mar(Barcelona, Spain) between 2007 and 2009 for OGIB who underwent a CE were retrospectively analyzed. Demographic data, current treatment with non-steroid antiinflammtory drugs or anticoagulant drugs, hemoglobin levels, transfusion requirements, previous diagnostic tests for the bleeding episode, as well as CE findings(significant or non-significant), work-up and patient out-comes were analyzed from electronic charts. Variables were compared by χ 2 analysis and Student t test. Risk factors of rebleeding were assessed by Log-rank test, Kaplan-Meier curves and Cox regression model. RESULTS: There were 105 patients [45.7% women, median age of 72 years old(interquartile range 56-79)] and a median follow-up of 326 d(interquartile range 123-641) included in this study. The overall diagnostic yield of CE was 58.1%(55.2% and 63.2%, for patients with occult OGIB and overt OGIB, respectively). In 73 patients(69.5%), OGIB was resolved. Multivariate analysis showed that hemoglobin levels lower than 8 g/dL at diagnosis [hazard ratios(HR) = 2.7, 95%CI: 1.9-6.3], patients aged 70 years and above(HR = 2.1, 95%CI: 1.2-6.1) and significant findings in CE(HR = 2.4, 95%CI: 1.1-5.8) were independent predictors of rebleeding. CONCLUSION: One third of the patients presented with rebleeding after CE; risk factors were hemoglobin levels < 8 g/dL, age ≥ 70 years or the presence of significant lesions.Alex Caas-Ventura Lucia Márque Xavier Bessa Josep Maria DedeuDepartment of Gastroenterology Hospital del Mar Research Institute Pompeu Fabra University Marc Puigvehí Sílvia Delgado-Aros Ines Ana Ibáez Agustin Seoane Luis Barranco Felipe Bory Montserrat Andreu Begoa González-Suárez 2013World Journal of Gastrointestinal Endoscopy2013,5,11:4
5Thiopurine-methyltransferase variants in inflammatory bowel disease:Prevalence and toxicity in Brazilian patients显示文摘AIM:To analyze the prevalence of thiopurine-methyltransferase(TPMT)genotypes and their associationwith drug toxicity in inflammatory bowel disease(IBD)patients from southeastern Brazil.METHODS:A total of 219 consecutive patients with IBD,of which 146 had Crohn’s disease and 73 had ulcerative colitis,regularly seen at the outpatient unit of the Division of Gastroenterology at the University Hospital Pedro Ernesto of the State University of Rio de Janeiro,a tertiary referral center,were enrolled in this study from February 2009 to January 2011.We analyzed the presence of major TPMT genetic variants(TPMT*2,*3A,*3C)in IBD patients by means of a specific allele and RFLP-PCR.Genomic DNA was isolated from peripheral blood leukocytes by proteinase-K/Sodium Dodecyl Sulfate digestion and phenol-chloroform extraction.TPMT*2(C238G),TPMT*3A(G460A/A719G),and TPMT*3C(A719G)genotypes were detected by real-time polymerase chain reaction followed by direct sequencing with specific primers.Clinical data were systematically recorded,and correlated with the genotype results.RESULTS:The distribution of the selected TPMT gene polymorphism TPMT*2(C238G),TPMT*3A(G460A/A719G),and TPMT*3C(A719G)genotypes was 3.6%,5.4%,and 7.7%of the patients,respectively.Among the side effects recorded from patients taking azathioprine,14 patients presented with pancreatitis and/or an elevation of pancreatic enzymes,while 6 patients had liver toxicity,and 2 patients exhibited myelosuppression/neutropenia.TPMT polymorphisms were detected in 37/219 patients(8 heterozygous for*2,11 heterozygous for*3A,and 18 heterozygous for*3C).No homozygotic polymorphisms were found.Despite the prevalence of the TPMT*3C genotype,no differences among the genotype frequencies were significant.Although no association was detected regarding myelotoxicity or hepatotoxicity,a trend towards the elevation of pancreatic enzymes was observed for TPMT*2 and TPMT*3C genotypes.CONCLUSION:The prevalence of TPMT genotypes was high among Brazilian patients.Variants genes*2and*3C may be associated with azathioprine pancreatic toxicity in a IBD southeastern Brazilian population.Ana Teresa P Carvalho Barbara C Esberard Renata S B Fróes Davy C M Rapozo Ana B Grinman Tatiana A Simo Juliana C V C Santos Antonio José V Carneiro Luis Felipe Ribeiro-Pinto Heitor S P de Souza 2014World Journal of Gastroenterology2014,20,12:3
6在 esophagogastroduodenoscopy 使用 lidocaine 的实用性与 propofol 表现在镇静下面显示文摘 AIM:To determine whether topical lidocaine benefits esophagogastroduoduenoscopy(EGD) by decreasing propofol dose necessary for sedation or procedurerelated complications.METHODS:The study was designed as a prospective,single centre,double blind,randomised clinical trial and was conducted in 2012 between January and May(NCT01489891).Consecutive patients undergoing EGD were randomly assigned to receive supplemental topical lidocaine(L;50 mg in an excipient solution which was applied as a spray to the oropharynx) or placebo(P;taste excipients solution without active substance,similarly delivered) prior to the standard propofol sedation procedure.The propofol was administered as a bolus intravenous(iv) dose,with patients in the L and P groups receiving initial doses based on the patient’s American Society of Anaesthesiologists(ASA) classification(ASAⅠ-Ⅱ:0.50-0.60 mg/kg;ASA Ⅲ-Ⅳ:0.25-0.35 mg/kg),followed by 10-20 mg iv dose every 30-60 s at the anaesthetist’s discretion.Vital signs,anthropometric measurements,amount of propofol administered,sedation level reached,examination time,and the subjective assessments of the endoscopist’s and anaesthetist’s satisfaction(based upon a four point Likert scale) were recorded.All statistical tests were performed by the Stata statistical software suite(Release 11,2009;StataCorp,LP,College Station,TX,United States).RESULTS:No significant differences were found between the groups treated with lidocaine or placebo in terms of total propofol dose(310.7 ± 139.2 mg/kg per minute vs 280.1 ± 87.7 mg/kg per minute,P = 0.15) or intraprocedural propofol dose(135.3 ± 151.7 mg/kg per minute vs 122.7 ± 96.5 mg/kg per minute,P = 0.58).Only when the L and P groups were analysed with the particular subgroups of female,< 65-year-old,and lower anaesthetic risk level(ASA Ⅰ-Ⅱ) was a statistically significant difference found(L:336.5 ± 141.2 mg/kg per minute vs P:284.6 ± 91.2 mg/kg per minute,P = 0.03) for greater total propofol requirements).The total incidence of complications was also similar between the two groups,with the L group showing a complication rate of 32.2%(95%CI:21.6-45.0) and the P group showing a complication rate of 26.7%(95%CI:17.0-39.0).In addition,the use of lidocaine had no effect on the anaesthetist’s or endoscopist’s satisfaction with the procedure.Thus,the endoscopist’s satisfaction Likert assessments were equally distributed among the L and P groups:unsatisfactory,[L:6.8%(95%CI:2.2-15.5) vs P:0%(95%CI:0-4.8);neutral,L:10.1%(95%CI:4.2-19.9) vs P:15%(95%CI:7.6-25.7)];satisfactory,[L:25.4%(95%CI:10-29.6) vs P:18.3%(95%CI:15.5-37.6);and very satisfactory,L:57.6%(95%CI:54-77.7) vs P:66.6%(95%CI:44.8-69.7)].Likewise,the anaesthetist’s satisfaction Likert assessments regarding the ease of maintaining a patient at an optimum sedation level without agitation or modification of the projected sedation protocol were not affected by the application of lidocaine,as evidenced by the lack of significant differences between the scores for the placebo group:unsatisfactory,L:5.8%(95%CI:1.3-13.2) vs P:0%(95%CI:0-4.8);neutral,L:16.9%(95%CI:8.9-28.4) vs P:16.7%(95%CI:8.8-27.7);satisfactory,L:15.2%(95%CI:7.7-26.1) vs P:20.3%(95%CI:11.3-31.6);and very satisfactory,L:62.7%(95%CI:49.9-74.3) vs P:63.3%(95%CI:50.6-74.7).CONCLUSION:Topical pharyngeal anaesthesia is safe in EGD but does not reduce the necessary dose of propofol or improve the anaesthetist’s or endoscopist’s satisfaction with the procedure.Felipe de la Morena Cecilio Santander Carlos Esteban Beatriz de Cuenca Juan Antonio García Javier Sánchez Ricardo Moreno 2013World Journal of Gastrointestinal Endoscopy2013,5,5:3
7Coronary physiology assessment in the catheterization laboratory显示文摘Physicians cannot rely solely on the angiographic appearance of epicardial coronary artery stenosis when evaluating patients with myocardial ischemia. Instead, sound knowledge of coronary vascular physiology and of the methods currently available for its characterization can improve the diagnostic and prognostic accuracy of invasive assessment of the coronary circulation, and help improve clinical decision-making. In this article we summarize the current methods available for a thorough assessment of coronary physiology.Felipe Díez-delhoyo Enrique Gutiérrez-Ibanes Gerard Loughlin Ricardo Sanz-Ruiz María Eugenia Vázquez-álvarez Fernando Sarnago-Cebada Rocío Angulo-Llanos Ana Casado-Plasencia Jaime Elízaga Francisco Fernández Avilés Diáz 2015World Journal of Cardiology2015,7,9:2
8Initial experience with EUS-guided cholangiopancreatography for biliary and pancreatic duct drainage: a Spanish national survey显示文摘Juan J. Vila Manuel Pérez-Miranda Enrique Vazquez-Sequeiros Monder Abu-Suboh Abadia Antonio Pérez-Millán Ferrán González-Huix Joan Gornals Julio Iglesias-Garcia Carlos De la Serna José R. Aparicio José C. Subtil Alberto álvarez Felipe de la Morena Jesús G 2012Gastrointestinal Endoscopy2012,,6:2
9Model for end-stage liver disease-Na score or Maddrey discrimination function index, which score is best?显示文摘AIM: To compare the ability of model for end-stage liver disease(MELD)-Na and Maddrey discrimination function index(DFI) to predict mortality at 30 and 90 d in patients with alcoholic hepatitis(AH).METHODS: We prospectively assessed 52 patients with AH. Demographic, clinical and laboratory parameters were obtained. MELD-Na and Maddrey DFI were calculated on admission. Short-term mortality was assessed at 30 and 90 d. Receiver operating characteristic curve analysis was performed. RESULTS: Thirty-day and 90-d mortality was 44% and 58%, respectively. In the univariate analysis, sodium levels was associated with mortality at 30 and 90 d(P = 0.001 and P = 0.03). Child stage, encephalopathy, ascites, or types of treatment were not associated with mortality. MELD-Na was the only predictive factor for mortality at 90 d. For 30-d mortality area under the curve(AUC) was 0.763(95%CI: 0.63-0.89) for Maddrey DFI and 0.784 for MELD-Na(95%CI: 0.65-0.91, P = 0.82). For 90-d mortality AUC was 0.685(95%CI: 0.54-0.83) for Maddrey DFI and 0.8710 for MELD-Na(95%CI: 0.76-0.97, P = 0.041). CONCLUSION: AH is associated with high shortterm mortality. Our results show that MELD-Na is a more valuable model than DFI to predict short-term mortality.Mercedes Amieva-Balmori Scherezada María Isabel Mejia-Loza Roberto Ramos-González Felipe Zamarripa-Dorsey Eli García-Ruiz Nuria Pérez y López Eumir I Juárez-Valdés Adriana López-Luria José María Remes-Troche 2015World Journal of Hepatology2015,7,17:2
10A reciprocal translocation between ’Garfi’ almond and ’Nemared’ peach显示文摘B. Jáuregui M.C. de Vicente R. Messeguer A. Felipe A. Bonnet G. Salesses P. Arús 2001TAG Theoretical and Applied Genetics2001,,8:2
11Drug development to overcome resistance to EGFR inhibitors in lung and colorectal caner 显示文摘Dienstmann R de Dosso S Felip E 2012Mol Oncol2012,6,1:1
12Small-cell lung cancer:ESMO clinical recommendations for diagnosis,treatment and follow-up显示文摘S(o)rensen M Felip E ESMO Guidelines Working Group 2009Ann Oncol2009,204,:1
13Abolition of respiratory-motion artifact in computed tomography coronary angiography with ultrafast examinations:a comparison between 64-row and 320-row multidetector scanners显示文摘Felipe S Torres Andrew M Crean Elsie T 2010Canadian Association of Radiologists Journal2010,61,:1
14Effects of initial pH on biological synthesis of xylitol using xylose-rich hydrolysate 显示文摘MORITA T A SILVA S S FELIPE M G A 2000Applied Biochemistry and Biotechnology2000,8486,:1
15A combined score of pro- and anti-inflammatory interleukins improves mortality prediction in severe sepsis显示文摘David Andaluz-Ojeda Felipe Bobillo Verónica Iglesias Raquel Almansa Lucía Rico Francisco Gandía Salvador Resino Eduardo Tamayo Raul Ortiz de Lejarazu Jesús F. Bermejo-Martin 2011Cytokine2011,,3:1
16Productivity Growth in China Before and After 1978 Revisited显示文摘FELIPE J MCCOMBIE J S L 2002Zagreb International Review of Economics & Business2002,5,1:1
17Transesterifica- tion of Vegetable Oils:Simulating the Replacement of Batch Reactors with Continuous Reactors 显示文摘Felipe A S F Jose A V Sergio P R 2010Bioresource Technology2010,101,:1
18Photocatalytic activity of nanoneedles, nanospheres, and polyhedral shaped ZnO powders in organic dye degradation processes显示文摘Felipe Antonio Lucca Sánchez Antonio Shigueaki Takimi Fabiano Severo Rodembusch Carlos Pérez Bergmann 2013Journal of Alloys and Compounds2013,,:1
19A new initialization method for frequency-domain blind source separation algorithms显示文摘FELIPE S P MARIANE R 2011Signal Processing Letters2011,18,6:1
20Wireless sensor network deployment for integrating video-surveillance anddata- monitoring in precision agriculture over distributed crops 显示文摘ANTONIO J G S FELIPE G S JOAN G H 2011Computers and Electronics in Agriculture2011,75,:1
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