Sebastien Preau

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OBJECTIVE Rapid fluid loading is standard treatment for hypovolemia. Because volume expansion does not always improve hemodynamic status, predictive parameters of fluid responsiveness are needed. Passive leg raising is a reversible maneuver that mimics rapid volume expansion. Passive leg raising-induced changes in stroke volume and its surrogates are(More)
BACKGROUND Obesity and diabetes mellitus are independently associated with the development of heart failure. In this study, we determined the respective effects of obesity, insulin resistance, and diabetes mellitus on the intrinsic contraction and mitochondrial function of the human myocardium before the onset of cardiomyopathy. METHODS AND RESULTS Right(More)
In human atrial trabeculae, we examined the effects of doxorubicin on the isometric force of contraction, mitochondrial respiration, membrane potential and calcium retention capacity. Compared with untreated controls, doxorubicin induced contractile dysfunction and depression of mitochondrial respiration. Mitochondria isolated from doxorubicin-treated human(More)
OBJECTIVE We hypothesized that the hemodynamic response to a deep inspiration maneuver (DIM) indicates fluid responsiveness in spontaneously breathing (SB) patients. DESIGN Prospective study. SETTING ICU of a general hospital. PATIENTS Consecutive nonintubated patients without mechanical ventilation, considered for volume expansion (VE). (More)
Hospital-acquired infections (HAI) represent the most common adverse event in the intensive care unit (ICU). Their prevalence is high and they are associated with increased morbidity and mortality. The environment plays a central role in the transmission of hospital-acquired pathogens (HAP) and in the pathogenesis of HAI. Many bacteria, especially multidrug(More)
The present study was undertaken to examine the effects of doxorubicin on left ventricular function and cellular energy state in intact isolated hearts, and, to test whether inhibition of mitochondrial membrane potential dissipation would prevent doxorubicin-induced mitochondrial and myocardial dysfunction. Myocardial contractile performance and(More)
BACKGROUND We evaluated pulmonologists variability in the interpretation of Vibration response imaging (VRI) obtained from healthy subjects and patients hospitalized for community acquired pneumonia. METHODS The present is a prospective study conducted in a tertiary university hospital. Twenty healthy subjects and twenty three pneumonia cases were(More)
BACKGROUND Very few studies focused on patients with severe infective endocarditis (IE) and multiple complications leading to Intensive Care Unit (ICU) admission. Studied primary outcomes depended on the series and multiple prognostic factors have been identified. Our goal was to determinate characteristics of patients, in-hospital mortality and independent(More)
OBJECTIVES Macrophage migration inhibitory factor (MIF) has been recognized as a potent proinflammatory mediator that may induce myocardial dysfunction. Mechanisms by which MIF affects cardiac function are not completely elucidated; yet, some macrophage migration inhibitory effects have been related to changes in cytoskeleton architecture. We hypothesized(More)
OBJECTIVE To investigate whether the collapsibility index of the inferior vena cava recorded during a deep standardized inspiration predicts fluid responsiveness in nonintubated patients. DESIGN Prospective, nonrandomized study. SETTING ICUs at a general and a university hospital. PATIENTS Nonintubated patients without mechanical ventilation (n = 90)(More)