Does enhanced recovery improve the survival rates of patients 3 years after undergoing surgery to remove a tumor in the colon?

PURPOSE: The advantages of enhanced recovery programs (ERP) after colorectal surgery for morbidity and length of stay are well known. On a longer term, evidence is much more limited. The aim of this study is to determine the impact of ERP on survival after 3 years of follow-up, following colorectal cancer surgery. METHODS: All the patients undergoing resection for colorectal cancer between the years 2010 and 2014 were included. Patients were classified according to their compliance with the ERP (< 70 or ≥ 70%). RESULTS: Among the 206 patients included during the period, 129 were male (62.6%). The 3-year overall survival rate was 70.4% (145 patients) and relapse-free survival was 59.2% (122 patients). The survival after 3 years was influenced by the initial metastatic status (p < 0.0001), operative morbidity (p < 0.001), and the presence of peritumoral emboli (p = 0.006). However, the compliance with the ERP ≥ 70% did not influence overall survival (p = 0.63), nor relapse-free survival (p = 0.93). The same observations were found among the "at-risk" population (synchronous metastasis and postoperative complication). CONCLUSION: The ERP does not seem to influence the 3-year relapse-free survival after colorectal resection for cancer

O método comparativo na origem da psicologia da arte

Este texto tem por objetivo apresentar o surgimento do método comparativo nas interpretações psicológicas das produções artísticas da Europa e do Brasil. Utilizam-se os discursos da Psiquiatria no início do século XX, notando como as interpretações básicas acerca da Psicologia da Arte foram permeadas pelo método comparativo. Este, por sua vez, carregou consigo um risco de análise, o de encontrar na arte uma manifestação de degeneração

Comportement des aciers à mi-chaud.

National audienc

MODELLING OF DYNAMIC TENSION TESTS APPLIED TO DUCTILITY PROBLEMS

Nous proposons une simulation monodimensionnelle par éléments finis de l' essai de traction dynamique. Nous mettons en évidence les conséquences d'une réduction locale de la sectioninitiale de l'éprouvette et des effets d'inertie, en particulier sur l'histoire de la déformation et de la vitesse de déformation. L'influence des paramètres rhéologiques sur l'évolution de la ductilité est également étudiée .A one dimensional simulation of the dynamic tensile test, using the finite elements method is proposed. We enlighten the consequences of a local reduction of the initial specimen section and of inertia effects, in particular on strain and strain rate history. The influence of the rheological parameter on the ductility evolution has been also studied

Recristallisation Statique et Croissance de Grain d'un Acier Austénitique Inoxydable

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Prévision des contraintes macroscopiques obtenues au cours d'essais de traction-torsion simultanées. Relation avec la texture.

par

Constitutive relations for a commercially pure aluminium from room temperature to 500°C.

International audienc

Recristallisation Statique et Croissance de Grain d'un Acier Austénitique Inoxydable

Static Recrystallization (SR), is here used as a way to get an ASTM [1] grain size of 3 or so. Making a prediction of the effect of both deformation and temperature on the kinetics of the SR phenomena is the first step toward a global microstructure prediction at the end of the manufacturing sequence. It is the main goal of the study here after described. In this study, we did hot compression tests (950-1200°C) and analyzed them in terms of recrystallized fraction (quantitative metallography) using to classic Avrami equation. We observed some time exponents (k) smaller than 1, which goes against Avrami's theory, which only describes equal or above 1 exponents. The time for half recrystallization (t0.5) has also been determined, according to C.M. Sellars method and reached a satisfactory, experiment-calculation agreement. After completion of the recrystallization, the Grain Growth phenomenon occurs. Thanks to a wide study of thermal annealings, we found a A=A0+α.tn type of equation, where α is a variable involving Q, an activation energy, through an Arrhenius equation

The effect of the addition of alloying elements on carbide precipitation and mechanical properties in 5% chromium martensitic steels

International audienceCarbide-forming elements (W, Mo, Nb, V), as well as elements that influence only the tempering kinetics (Co, Ni), were added to a 5% Cr tempered martensitic steel in order to modify its precipitation. The main goal was to shift the secondary hardening peak towards higher tempering temperatures. Small angle neutron scattering and X-ray diffraction experiments, as well as transmission electron microscopy, were performed to characterize the precipitation of nanometric carbides. A significant modification of the volume fraction and/or chemistry of the very fine secondary precipitation was observed only for Mo, V and Ni additions. Moreover, the mechanical properties showed that the volume fraction of small precipitates (VC, Fe(3)MO(3)C) directly influences the mechanical resistance at high temperature but has a detrimental effect on Charpy impact energy