Summary: Several data emphasize the relation between tachycardia (\>90/min) and high mortality during septic shock. The investigators previously demonstrated the high mortality associated with hypercontractility, tachycardia and the presence of a left ventricular obstruction. A severe hypovolemia, a hyper adrenergic stimulation or a severe vasoplegia can all explain this relation between tachycardia, hyper...

Summary: Chronic mitral regurgitation is the most common valvular abnormality worldwide, it occurs in 10% of the general population and its prevalence increases with age. When left untreated, it can lead to left ventricular dysfunction and cause disabling symptoms (e.g., fatigue and dyspnea), life-threatening complications (e.g., ventricular dilation, congestive heart failure) and death. Surgical correctio...

Summary: The objectives of this study are to evaluate the effect of continuous intravenous Landiolol injection (from 0.5 to 10 µg/kg/min during 12 hours ) up to a 15% decrease in Heart Rate (HR) on microcirculatory vascular reactivity vs. usual tachycardia management and evaluate the hemodynamic effects of Landiolol vs. usual management in patients with septic shock.