View clinical trials related to Beta Blocker.
Filter by:Beta-blockers improve clinical outcomes in heart failure and reduced ejection fraction (HFrEF); but not in those with preserved EF. Global longitudinal strain (GLS) is a prognostic factor independent of left ventricular ejection fraction (LVEF). In a retrospective with 1969 patients with HF and LVEF of ≥40%, beta-blocker was associated with improved survival in those with low GLS (GLS <14%), but not in those with GLS ≥14%. In this prospective, randomized clinical study, the investigators will assess the effect of slow-release carvedilol in patients with HFpEF and hypertension. The primary endpoint is the time-averaged proportional changes in NT-proBNP level and GLS change from baseline to month 6.
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, hypercontractility and the mortality during septic shock. Landiolol is another short-term acting beta-blocker with a half-life of 4 minutes without any beta 2 activity or membrane stabilizing effect. The landiolol has been used in critically ill patients to control supraventricular tachycardia but not in this context of tachycardia and septic shock. The investigators hypothesize that landiolol by reducing the heart rate may improve the survival of patients treated for a septic shock and presenting with an hypercontractility state.
Beta-blockers are useful tools for the prevention of hemodynamic instability in the manipulation of airways. The main objective of the present study is to evaluate the effectiveness of using esmolol in attenuating hemodynamic responses at the time of tracheal extubation, by assessing the incidence of tachycardia in relation to placebo.