3篇
您的检索式：作者名="C Isaac GARCIA"
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Anemia in patients with high-risk acute coronary syndromes admitted to Intensive Cardiac Care Units显示文摘Background Little information exists about the role of anemia in patients with acute coronary syndromes(ACS)admitted to Intensive Cardiac Care Units(ICCU).The aim of this study was to assess the prevalence of anemia and its impact on management and outcomes in this clinical setting.Methods All consecutive patients admitted to eight different ICCUs with diagnosis of non-ST segment elevation ACS(NSTEACS)were prospectively included.Anemia was defined as hemoglobin<130 g/L in men and<120 g/L in women.The association between anemia and mortality or readmission at six months was assessed by the Cox regression method.Results A total of 629 patients were included.Mean age was 66.6 years.A total of 197 patients(31.3%)had anemia.Coronary angiography was performed in most patients(96.2%).Patients with anemia were significantly older,with a higher prevalence of comorbidities,poorer left ventricle ejection fraction and higher GRACE score values.Patients with anemia underwent less often coronary angiography,but underwent more often intraaortic counterpulsation,non-invasive mechanical ventilation and renal replacement therapies.Both ICCU and hospital stay were significantly longer in patients with anemia.Both the incidence of mortality(HR=3.36,95%CI:1.43–7.85,P=0.001)and the incidence of mortality/readmission were significantly higher in patients with anemia(HR=2.80,95%CI:2.03–3.86,P=0.001).After adjusting for confounders,the association between anemia and mortality/readmission remained significant(P=0.031).Conclusions Almost one of three NSTEACS patients admitted to ICCU had anemia.Most patients underwent coronary angiography.Anemia was independently associated to poorer outcomes at 6 months. | Victoria Lorente Jaime Aboal Cosme Garcia Jordi Sans-Rosello Antonia Sambola Rut Andrea Carlos Tomas Gil Bonet David Vinas Nabil el Ouaddi Santiago Montero Javier Cantalapiedra Margarida Pujol Isabel Hernandez Maria Perez-Rodriguez Isaac Llao Jose C Sanchez-Salado Miquel Gual Albert Ariza-Sole 无 | 2020 | Journal of Geriatric Cardiology2020，17，1： | 2 |
| 2 | New pearlitic steels for 21st century rail applications显示文摘To improve competitiveness,the nation’s railroads have increased the axle loads and speed of the trains.This has led to a rapid decrease in the life expectancy of premium rails through accelerated wear,rolling contact fatigue and fracture.To counter this effect,the railroads need rails that exhibit better performance in these areas.A research program has been initiated to study the microstructural aspects of near-eutectoid steels that would improve these properties.The first phase of the work was to carefully characterize the existing commercial rail steels in terms of pearlite interlamellar spacing,steel cleanliness and the presence of pro-eutectoid cementite on prior-austenite boundaries.These characterizations were then correlated with both mechanical properties and overall rail performance.The second phase of the program was to develop a better microstructure through control of composition,thermomechanical processing and cooling path.This was achieved through the use of laboratory-melted heats of experimental near-eutectoid compositions and a computer controlled MTS compression machine modified for axisymmetric compression testing and subsequent controlled cooling.The optimum processing route for these new steels has been determined,and pilot-scale heats have been melted,hot rolled and cooled using the information gained from the MTS investigations.The mechanical properties of these new steels have been determined and the rail performance tests are being conducted using laboratory-scale evaluation.Ultimately,these new rail steels will be tested under commercial conditions on the TTCI test track in Pueblo,Colorado.This paper will report on the alloy and processing design and resulting properties of the steels developed in this research program.Guidelines for future rail compositions and processing to obtain improved properties and performance will be presented. | R ORDONEZ C Isaac GARCIA Semih KALAY Anthony J DEARDO | 2010 | Baosteel Technical Research2010，4，S1： | 1 |
| 3 | Particle- stimulated nucleation of ferrite in heavy steel sections 显示文摘 | Hajeri Khaled F AI Garcia C Isaac Hua Mingjian ctal | 2006 | ISIJ International2006，46，8： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员