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This case report represents the difficulties in diagnosing brucellosis, which is an enigma with unusual cardiovascular complications. A 32-year-old Caucasian man with acute chest pain was examined at Sfax Hedi Chaker's Hospital. He had a night fever, although his cardiac examination was normal. Further laboratory analyses showed an elevated C-reactive protein of 20.8 mg/dL and troponine I of 1.469 IU/L. A cardiac MRI using delayed enhancement was then performed. The T2-weighted short-axis showed a subepicardial delaying enhancement of infero-lateral and the basal walls of the left ventricle. Accordingly, a diagnosis of Brucellarelated myocarditis was made.

International audienceWe have studied the MagnetoCaloric Effect (MCE) in La0.7Sr0.3Mn0.9M0.1O3, M=Cr, Sn and Ti, prepared by a conventional solid state reaction. The temperature dependence of magnetization reveals that all compositions exhibit a ferromagnetic (FM) to paramagnetic (PM) transition at TC temperatures of 369, 326, 228 and 210 K, respectively for La0.7Sr0.3MnO3 (LSMO), La0.7Sr0.3Mn0.9Cr0.1O3 (LSMO-Cr), La0.7Sr0.3Mn0.9Sn0.1O3 (LSMO-Sn), and La0.7Sr0.3Mn0.9Ti0.1O3 (LSMO-Ti). Using Arrott plots, the phase transition from FM to PM is found to be of second order. The maximum magnetic entropy change (−ΔSM), at the applied magnetic field of 2 T, is found to be 1.27, 1.76, 0.47 and 1.45 J kg−1 K−1, respectively for LSMO, LSMO-Cr, LSMO-Sn and LSMO-Ti. The relative cooling power (RCP) for LSMO-Cr, LSMO-Sn and LSMO-Ti is in the order of 50%, 26% and 71%, respectively, compared to gadolinium (Gd). As a result, the LSMO-Cr and LSMO-Ti compounds can be considered as promising materials in magnetic refrigeration technology

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PCT and Nt-pro-BNP on day 1 may be associated with severe SIRS and predict the length of stay. A biomarker approach combining PCT, CRP and BNP is superior to a traditional single marker for predicting ICU stay.