维普中文期刊产品整合服务
870篇 您的检索式:作者名="Calvo A"
    题名 作者 年代 出处 被引量
1Risk factors associated with the development of ischemic colitis显示文摘AIM:To ascertain the role of cardiovascular risk factors,cardiovascular diseases,standard treatments and other diseases in the development of ischemic colitis(IC).METHODS:A retrospective,case-control study was designed,using matched data and covering 161 incident cases of IC who required admission to our hospital from 1998 through 2003.IC was diagnosed on the basis of endoscopic findings and diagnostic or compatible his-tology.Controls were randomly chosen from a cohort of patients who were admitted in the same period and required a colonoscopy,excluding those with diagnosis of colitis.Cases were matched with controls(ratio 1:2),by age and sex.A conditional logistic regression was performed.RESULTS:A total of 483 patients(161 cases,322 con-trols)were included;mean age 75.67±10.03 years,55.9%women.The principal indications for colonos-copy in the control group were lower gastrointestinal hemorrhage(35.4%),anemia(33.9%),abdominal pain(19.9%)and diarrhea(9.6%).The endoscopic findings in this group were hemorrhoids(25.5%),diverticular disease(30.4%),polyps(19.9%)and colorectal cancer(10.2%).The following variables were associated with IC in the univariate analysis:arterial hypertension(P= 0.033);dyslipidemia(P<0.001);diabetes mellitus(P =0.025);peripheral arterial disease(P=0.004);heart failure(P=0.026);treatment with hypotensive drugs(P=0.023);angiotensin-converting enzyme inhibitors;(P=0.018);calcium channel antagonists(P=0.028);and acetylsalicylic acid(ASA)(P<0.001).Finally,the following variables were independently associated with the development of IC:diabetes mellitus[odds ratio(OR)1.76,95%confidence interval(CI):1.001-3.077,P=0.046];dyslipidemia(OR 2.12,95%CI:1.26-3.57,P=0.004);heart failure(OR 3.17,95%CI:1.31-7.68,P=0.01);peripheral arterial disease(OR 4.1,95%CI:1.32-12.72,P=0.015);treatment with digoxin(digitalis)(OR 0.27,95%CI:0.084-0.857,P=0.026);and ASA(OR 1.97,95%CI:1.16-3.36,P=0.012).CONCLUSION:The development of an episode of IC was independently associated with diabetes,dyslipid-emia,presence of heart failure,peripheral arterial dis-ease and treatment with digoxin or ASA.Joaquín Cubiella Fernández Luisa Núez Calvo Elvira González Vázquez Maria Jesús García García Maria Teresa Alves Pérez Isabel Martínez Silva Javier Fernández Seara 2010World Journal of Gastroenterology2010,16,36:27
2The importance of avoiding unnecessary right ventricular pacing in clinical practice显示文摘Symptomatic bradycardia is effectively treated with the implantation of a cardiac pacemaker. Although a highly successful therapy, during recent years there has been a focus on the negative effects associated with longterm pacing of the apex of the right ventricle(RV). It has been shown in both experimental and clinical studies that RV pacing leads to ventricular dyssynchrony, similar to that of left bundle branch block, with subsequent detrimental effects on cardiac structure and function, and in some cases adverse clinical outcomes such as atrial fibrillation, heart failure and death. There is substantial evidence that patients with reduced left ventricular function(LVEF) are at particular high risk of suffering the detrimental clinical effects of long-term RV pacing. The evidence is, however, incomplete, coming largely from subanalyses of pacemaker and implantable cardiac defibrillator studies. In this group of patients with reduced LVEF and an expected high amount of RV pacing, biventricular pacing(cardiac resynchronization therapy) devices can prevent the negative effects of RV pacing and reduce ventricular dyssynchrony. Therefore, cardiac resynchronization therapy has emerged as an attractive option with promising results and more clinical studies are underway. Furthermore, specific pacemaker algorithms, which minimize RV pacing, can also reduce the negative effects of RV stimulation on cardiac function and may prevent clinical deterioration.Finn Akerstrm Miguel A Arias Marta Pachón Jesús Jiménez-López Alberto Puchol Justo Juliá-Calvo 2013World Journal of Cardiology2013,5,11:3
3Liver fat deposition and mitochondrial dysfunction in morbid obesity:An approach combining metabolomics with liver imaging and histology显示文摘AIM: To explore the usefulness of magnetic resonance imaging(MRI) and spectroscopy(MRS) for assessment of non-alcoholic fat liver disease(NAFLD) as compared with liver histological and metabolomics findings. METHODS: Patients undergoing bariatric surgery following procedures involved in laparoscopic sleeve gastrectomy were recruited as a model of obesityinduced NAFLD in an observational, prospective, singlesite, cross-sectional study with a pre-set duration of 1 year. Relevant data were obtained prospectively and surrogates for inflammation, oxidative stress and lipid and glucose metabolism were obtained through standard laboratory measurements. To provide reliable data from MRI and MRS, novel procedures were designed to limit sampling variability and other sources of error using a 1.5T Signa HDx scanner and protocols acquired from the 3D or 2D Fat SAT FIESTA prescription manager. We used our previously described 1H NMRbased metabolomics assays. Data were obtained immediately before surgery and after a 12-mo period including histology of the liver and measurement of metabolites. Values from 1H NMR spectra obtained after surgery were omitted due to technical limitations.RESULTS: MRI data showed excellent correlation with the concentration of liver triglycerides, other hepatic lipid components and the histological assessment, w h i c h e xc l u d e d t h e p r e s e n c e o f n o n-a l c o h o l i c steatohepatitis(NASH). MRI was sufficient to follow up NAFLD in obese patients undergoing bariatric surgery and data suggest usefulness in other clinical situations. The information provided by MRS replicated that obtained by MRI using the-CH3 peak(0.9 ppm), the-CH2- peak(1.3 ppm, mostly triglyceride) and the-CH=CH- peak(2.2 ppm). No patient depicted NASH. After surgery all patients significantly decreased their body weight and steatosis was virtually absent even in patients with previous severe disease. Improvement was also observed in the serum concentrations of selected variables. The most relevant findings using metabolomics indicate increased levels of triglyceride and monounsaturated fatty acids in severe steatosis but those results were accompanied by a significant depletion of diglycerides, polyunsaturated fatty acids, glucose-6-phosphate and the ATP/AMP ratio. Combined data indicated the coordinated action on mitochondrial fat oxidation and glucose transport activity and may support the consideration of NAFLD as a likely mitochondrial disease. This concept may helpto explain the dissociation between excess lipid storage in adipose tissue and NAFLD and may direct the search for plasma biomarkers and novel therapeutic strategies. A limitation of our study is that data were obtained in a relatively low number of patients.CONCLUSION: MRI is sufficient to stage NAFLD in obese patients and to assess the improvement after bariatric surgery. Other data were superfluous for this purpose.Nahum Calvo Raúl Beltrán-Debón Esther Rodríguez-Gallego Anna Hernández-Aguilera Maria Guirro Roger Mariné-Casadó Lidón Millá Josep M Alegret Fàtima Sabench Daniel del Castillo María Vinaixa Miguelàngel Rodríguez Xavier Correig Roberto García-álvarez Javier A Menendez Jordi Camps Jorge Joven 2015World Journal of Gastroenterology2015,21,24:2
4Circulating levels of GDF15, MMP7 and miR-200c as a poor prognostic signature in gastric cancer显示文摘Moisé s Blanco-Calvo Nuria Tarrí o Margarita Reboredo Mar Haz-Conde Jorge Garcí a Marí a Quindó s Angé lica Figueroa Luis Antó n-Aparicio Lourdes Calvo Manuel Valladares-Ayerbes 2014Future Oncol2014,,7:2
5Morbidity and mortality after D1 and D2 gastrectomy for cancer: Interim analysis of the Italian Gastric Cancer Study Group (IGCSG) randomised surgical trial显示文摘M Degiuli M Sasako M Calgaro M Garino F Rebecchi M Mineccia D Scaglione D Andreone A Ponti F Calvo 2004European Journal of Surgical Oncology2004,,3:2
6晶粒细化对TWIP钢力学性能与织构的影响(英文)显示文摘奥氏体高锰钢(15%-30%)呈现出孪晶诱导塑性变形机制,并在拉伸试验中表现出很好的强度-塑性性能,因此在汽车工业结构件应用中有很大潜力。最近几年,对于TWIP钢不同方面的研究受到了高度重视。之前一些综述文章关注于TWIP钢的基本知识,而非晶粒细化方法的影响。本文主要综述了通过冷轧以及强塑性变形方法引起的力学性能改善以及织构变化。基于之前的研究,通过冷轧以及强塑性变形方法,平均晶粒尺度可以急剧地减小,同时屈服强度和极限抗拉强度将会大幅升高。这个现象可以归因于变形过程引起的孪晶演化。另一方面,在冷轧变形后,Goss和Brass织构会逐步形成。王雷 BENITO J A CALVO J CABRERA J M 2016材料热处理学报2016,37,8:2
7在经历 transcatheter 的病人的 atrial 纤维性颤动的临床、预示的含意大动脉的阀门培植显示文摘 AIM: To study a cohort of consecutive patients under-going transcatheter aortic valve implantation (TAVI) and compare the outcomes of atrial fibrillation (AF) patients vs patients in sinus rhythm (SR). METHODS: All consecutive patients undergoing TAVI in our hospital were included. The AF group comprised patients in AF at the time of TAVI or with history of AF, and were compared with the SR group. Procedural, echocardiographic and follow-up variables were compared. Likewise, the CHA 2 DS 2-VASC stroke risk score and HAS-BLED bleeding risk score and antithrombotic treatment at discharge in AF patients were compared with that in SR patients. RESULTS: From a total of 34 patients undergoing TAVI, 17 (50%) were allocated to the AF group, of whom 15 (88%) were under chronic oral anticoagulation. Patients in the AF group were similar to those in the SR group except for a trend (P = 0.07) for a higher logistic EuroSCORE (28% vs 19%), and a higher prevalence of hypertension (82% vs 53%) and chronic renal failure (17% vs 0%). Risk of both stroke and bleeding was high in the AF group (mean CHA 2 DS 2-VASC 4.3, mean HAS-BLED 2.9). In the AF group, treatment at discharge included chronic oral anticoagulation in all except one case, and in association with an antiplatelet drug in 57% of patients. During a mean follow-up of 11 mo (maximum 32), there were only two strokes, none of them during the peri-procedural period: one in the AF group at 30 mo and one in the SR group at 3 mo. There were no statistical differences in procedural success, and clinical outcome (survival at 1 year 81% vs 74% in AF and SR groups, respectively, P = NS). CONCLUSION: Patients in AF undergoing TAVI show a trend to a higher surgical risk. However, in our cohort, patients in AF did not have a higher stroke rate compared to the SR group, and the prognosis was similar in both groups.Pablo Salinas Raúl Moreno Luis Calvo Santiago Jiménez-Valero Guillermo Galeote Angel Sánchez-Recalde Teresa López-Fernández Sergio Garcia-Blas Diego Iglesias Luis Riera Isidro Moreno-Gómez Jose María Mesa Ignacio Plaza Rocio Ayala Rosa Gonzalez José-Luis López-Sendón 2012World Journal of Cardiology2012,4,1:2
8A comparative study of the trochanteric fractures treated with Gamma nail or the proximal nail显示文摘Herrera A Domingo IJ Calvo A 2002Int Orthop2002,26,:1
9Capital Flows and Capital - Market Crises: The Simple Economics of Sudden Stops 显示文摘Calvo Guillermo A 1998Journal of Applied Economics1998,1,1:1
10A three-dimensional finite element analysis of the combined behavior of ligaments and menisci in the healthy human knee joint 显示文摘Pena E Calvo B Martinez M A 2006Journal of Biomechanics2006,39,9:1
11Evaluation of the hot ductility of a C-Mn steel produced from scrap recycling显示文摘CALVO J CABRERA J M REZAEIAN A 2007ISIJ International2007,47,10:1
12Influence of formula- tion on propofol pharmacokineties and pharmacodynam ics in anesthetized patients显示文摘Calvo R Telletxea S Leal N et a l 2004Acta Anaesthesiol Scand2004,48,8:1
13Impulsive noise measurement and characterization in a UHF digital TV channel显示文摘Manuel García Sánchez Leandro de Haro Miguel Calvo Ramón 1999IEEE Transactions on Electromagnetic Compatibility1999,41,2:1
14Experimental implementation of the gyrator transform 显示文摘RODRIGO J A AIAEVA T CALVO M L 2007Journal of Optics Society of America A2007,24,10:1
15A multicenter, randomized,double-blind comparison of the efficacy and safety of irbesartan and enalapril in adults with mild to moderate essential hypertension, as assesstial by by ambulatory blood pressure monitoring: the MAPAVEL Study显示文摘 Calvo C Carcia-Puig J 2002Clin Ther2002,24,1:1
16Metabolic monitoring of postischemic myocardium during intermittent warm-blood cardioplegic administration显示文摘Borowski A Kurt M Calvo S 2010Tex Heart Inst J2010,37,2:1
17Role of magnetic resonance cholangiopancreatography in patients with suspected choledocholithiasis显示文摘Calvo MM Bujanda L Calderon A 2002Mayo Clin Proc2002,77,5:1
18A comparative study of trochanteric fractures treated with the Gamma nail or the PFN显示文摘Herrera A Domingo LJ Calvo A 2002Int Orthop2002,,6:1
19Analysis of volatiles from Spanish honeys by solid-phase microextraction and gas chromatography-mass spectrometry显示文摘PEREZ R A SANCHEZ-BRUNETE C CALVO R M 2002J Agrie Food Chem2002,50,9:1
20Isolation and characterization of phage F9-11 from a lysogenic Deleya halophila strain 显示文摘Calvo C GareA - a de IP Bejar V 1988Currunt Microbiology1988,17,1:1
返回顶部 每页显示:
共44页 首页 上一页 第1页 下一页 末页 /44 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费