Active clinical trials for "Shock"

This observational study investigates the effect of endotoxinemia on the postoperative incidence of vasoplegia or vasoplegic shock in patients undergoing cardiac surgery with the use of cardiopulmonary bypass.

Sepsis is a major healthcare problem and leading cause of death in the pediatric population. Despite advances in supportive care of critically ill patients, sepsis remains an important cause of death worldwide in children. Overall, sepsis incidence peaked in early childhood. There were an estimated 20.3 million incident sepsis cases worldwide among children younger than 5 years. The Surviving Sepsis Campaign (SSC), which standardized the evidence-base approach to management of septic shock and other sepsis-associated organ dysfunction in children, was recently updated. Nevertheless, mortality and costs are still high. Sepsis is characterized by a complex systemic inflammatory response to a microbial pathogen. A dysregulated host response to infection may result in life-threatening multi-organ dysfunction. Endotoxin, which is found in the outer membrane of Gram-negative bacteria, plays an important role in the pathogenesis of septic shock by producing proinflammatory cytokines. High levels of endotoxin and proinflammatory cytokines are associated with a high mortality rate. Treatment strategies in sepsis and septic shock include early and adequate fluid resuscitation, vasopressors and inotropic support when indicated, early use of broad-spectrum antibiotics with source control, with close monitoring and organ support, if indicated. Other therapies such as immune-modulation and blood purification have been tried to improve outcomes in patients with sepsis and septic shock. Immunomodulation and blood purification techniques aim at restoring the balance of the immune response to infection, by removing the triggers for the response and the cytokines produced and thereby achieve immune homeostasis. Removing endotoxin and inflammatory cytokines would be an effective adjunctive approach in the management of severe sepsis. Direct hemoadsorption (HA) is an extracorporeal technique utilized for blood purification. It involves the passage of blood through an adsorption cartridge, where solutes are removed by direct binding to the sorbent material. Over the years, new adsorption cartridge, with improved characteristics have been developed. Resin-directed hemoadsorption is associated with improved oxygenation, hemodynamic status and cardiac function. However, most studies include only adults, and little information is available regarding the clinical experience and efficacy of blood purification for pediatric septic shock. This pilot study aimed to evaluate the overall clinical outcomes among children who received direct hemoadsorption as an adjunctive treatment for refractory septic shock with high severity scores, compared with outcomes among children admitted to the PICU who received standard treatment.

Myocardial strain analysis has emerged in the last decade as a reliable tool for studying myocardial mechanics, adding information on cardiac performance when compared with traditional parameters of left ventricle (LV) systolic function, such as ejection fraction (EF). However, their relative load dependency makes the myocardial deformation indices unable to account for changes in pre- and afterload. Myocardial work (MW) is emerging as an alternative tool for studying LV myocardial systolic function, because it incorporates both deformation and load into its analysis. The purpose of this observational trial is to validate the use of MW in septic shock patients by means of consecutive echocardiographic assessment at predefined timepoints. Secondarily, we'll evaluate the impact of the vasoactive drugs used in septic shock patients (vasopressors and inotropes) on MW and on ventriculo-arterial coupling.

To assess validity of of central and pulmonary veno - arterial CO2 gradient to predict fluid responsiveness and to guide fluid management and determine the cut off point to continue or stop resuscitation. comparison between PCO2 gab and left ventricular outflow tract velocity time integral to determine whether to continue or stop resuscitation and whether PCO2 gab is a surrogate of cardiac output or not.

The purpose of this study is to evaluate efficacy and safety of i.v. adrenaline infusion as an early and fast haemodynamic stabilizer, associated with a tight tissue perfusion monitoring, in the context of a stepwise progression in the treatment of cardiogenic shock, including ventricular mechanical support.

This study compares standard treatment plus Extra-Corporal Life Support (ECLS) versus standard treatment alone in patients with cardiogenic shock due to myocardial infarction.

Anisodamine has been widely used in China for its pharmacological effect on improving microcirculation during shock. It has been reported that anisodamine is effective in reducing mortality rate in children with meningitis. however, its effectiveness in patients with septic shock has not been systematically investigated. The aim of the study is to investigate the effectiveness of anisodamine in the treatment of patients with septic shock.

The purpose of the study is to determine if a protocol that assesses patients' daily fluid intake and output can decrease the overall amount of fluid patients receive during the first five days in the ICU. The study will also determine if decreasing overall fluids can decrease adverse events associated with mechanical ventilation, such as ventilator-associated pneumonias. The protocol will include daily ultrasounds and blood draws to evaluate fluid balance. Ultrasound will be used to measure changes in the diameter of the inferior vena cava with respiration.

The aim of the study is to evaluate whether fluid responsiveness of the critically ill patient can be assessed by analysing the PEEP-induced hemodynamic effects to systolic blood pressure, pulse pressure, aortic blood flow, aortic time-velocity integral and left ventricular end diastolic area measured with transesophageal echocardiography (PEEP-test). The chances are compared to increase of CI after volume expansion (gold standard). In clinical practise, it would be especially relevant if PEEP-induced changes in arterial pressure variations could be used in evaluation of volume status and fluid responsiveness. However, as ECHO-derived variables are used in greater extent to guide the treatment with inappropriate evidence, the simultaneous registration of ECHO-derived hemodynamic measurements is essential in the study design.

Severe sepsis/septic shock is a serious condition associated with high mortality rate. Hydrocortisone has been recommended as a useful treatment to decrease mortality in hemodynamically unstable septic shock patients, not response to fluid and moderate dose of vasopressor. During the progression of severe sepsis/septic shock, multi-organ dysfunction can develop. Acute lung injury (ALI) and its more severe form, acute respiratory syndrome (ARDS) is one of the common organ dysfunction associated with septic shock. Information from a meta-analysis suggested that moderate dose of hydrocortisone may improve the ARDS patients' outcome. Whether hydrocortisone can effectively prevent disease progression and death in severe sepsis/septic shock patients who complicated with ALI/ARDS has not been proven.