Active clinical trials for "Shock, Septic"

It is known that septic shock is characterized by arterial hypotension, decreased peripheral vascular resistance and hyporeactivity to vasoconstrictor agents, with NO being an important mediator of this organ dysfunction. Data in the literature have shown that hyporeactivity to catecholamines is associated with a decrease in the density of α and ß receptors in the aorta and heart, respectively, as well as an increase in GRK2 levels and that NO contributes to the increase of this kinase in sepsis . Based on this, it is hypothesized that cardiac dysfunction and decreased peripheral vascular resistance observed in sepsis may result from an increase in GRK2 activity and/or expression and its inhibition may be a relevant therapeutic target in septic shock patients. Based on this line, a measurable clinical benefit of paroxetine through the regulation of GRK2 expression in patients with septic shock is postulated.

The aim of study is this to evaluate the efficacy and safety of continuous linezolid infusion versus the standard regimen in treating critically ill patients with septic shock in the ICU

Assessing the safety and efficacy of the adjunctive use of midodrine as a vasopressor in septic shock patients by measuring the difference in the mortality rates between control and intervention groups.

Antimicrobial and supportive therapeutic interventions in patients with septic shock are usually effective - procalcitonin and interleukin-6 levels fall rapidly in most cases, and noradrenaline support can be discontinued within a few days. Unfortunately, only in a small portion of patients, do the organ functions improve at the same time, and in most of them, multi-organ failure persists. Therefore, it is likely that, in addition to infection and the response to infection, other mechanisms are also involved in the persistence of organ failure in patients after septic shock.

Patients with cirrhosis patients have a high incidence of sepsis which can trigger decompensation and may result in prolonged hospital stay and increased mortality. About 30%-50% admissions of patients with cirrhosis have sepsis at presentation and about 15% patients admitted to hospital develop sepsis during the hospital stay . After infection develops, the patient may develop acute kidney injury (AKI), shock, encephalopathy or disseminated intravascular coagulation (DIC) further decreasing the chances of survival. In fact, sepsis in patients with cirrhosis is associated with 15% in-hospital mortality, approximately double that of patients without sepsis. So, sepsis is directly responsible for 30-50% of deaths in cirrhosis . Therefore, it is critical to manage sepsis early and appropriately in cirrhosis to reduce the complications and mortality. Early administration of fluids, source control and empirical antibiotics along with vasopressors if refractory shock are essential components of treatment in all patients with sepsis. Currently, the most accepted strategy for early sepsis management is a combination of early goal directed therapy (EGDT) and physiological parameters, such as urine output, lactate clearance, and administration of antibiotics, within 1 hour of presentation . The use of central venous pressure assessment is fallacious for gauging adequacy of fluid resuscitation in cirrhosis, and the difficulty of performing echocardiographic assessments in the setting of ascites and cirrhotic cardiomyopathy is also well described .

The sublingual microcirculation is impaired in sepsis and septic shock. Sidestream dark field imaging technology has been developed into a clinical tool to help the clinician assess the microcirculation at the bedside. The ideal resuscitation fluid has not been identified. The investigators aim to use this new bedside technology to establish the microcirculation properties of two popular resuscitation fluids.

In recent years, many studies have pointed out that bacterial toxin storm and cytokine storm are the main causes of patients with septic shock and multiple organ dysfunction. Endotoxins are the main mediators of gram-negative bacteria causing systemic inflammation and sepsis. Endotoxins can interact with Toll- Like receptor 4 (TLR4) binding and trigger cytokine storms. The triple-effect blood purification filter has been proven to remove endotoxins, cytokines and urinary toxins, and it has the opportunity to improve shock in patients with sepsis. We hypothesize that blood purification using the three-effect filter can shorten the duration and severity of shock in patients with severe septic shock and reduce the organ damage by removing endotoxin, cytokine and urinary toxins. The primary aim of this study is to investigate the effect of blood purification using the three-effect filter on shortening the duration of septic shock. Other exploratory variables include the reduction of severity of organ damage and other clinical outcomes and prognosis.

New-onset supraventricular arrhythmia (NOSVA) is reported in 40 % of patients with septic shock and is associated with hemodynamic alterations and mortality. The lack of consensus regarding best practices for the management of NOSVA in this setting has led to major variations in practice patterns. Observational studies reported three usual strategies: (i) heart rate control (hereafter rate control) with the use of antiarrhythmic drugs, essentially based on low dose of amiodarone, (ii) rhythm control with the use of antiarrhythmic drugs, essentially based on high dose of amiodarone, and electrical cardioversionand (iii) modifiable NOSVA risk factors control (hereafter risk control) without using antiarrhythmic drugs. Risk control would minimize adverse events of antiarrhythmic drugs. Rhythm control would rapidly improve haemodynamics via restoring diastole and decreasing cardiac metabolic demand, while minimizing exposure to anticoagulation. Rate control, would limit potential adverse events of high dose of amiodarone and of electrical cardioversion (only in patients intubated on mechanical ventilation), while controlling haemodynamics. Therefore, it seems important to compare these three strategies. Our hypothesis is dual: first, that rate control and rhythm control each improve hemodynamics with in fine a decreased mortality, as compared to a risk control; second, that rhythm control outperforms rate control in this setting. This is a multicenter, parallel-group, open-label, randomized controlled superiority trial to compare the effectiveness and safety of these three strategies (risk control, rate control and rhythm control) for NOSVA during septic shock.

Severe sepsis and septic shock remain of particular gravity in children with a current mortality of about 20 % , despite the international prevention campaigns " survival sepsis campaign ". Septic shock associates a macrocirculatory and a microcirculatory dysfunction. The volume expansion remains the treatment of severe sepsis at the initial phase supplemented by the use of vasopressors and / or inotropes. Nevertheless , it is essential to predict the fluid responsiveness after volemic expansion because fluid overload is associated with an increased morbidity in children. In studies , the volume expansion is considered effective if it allows an increase in cardiac output of more than 15 % compared to the basal level. However, their conditions of use remain very restrictive and not applicable to most of our patients ( tidal volume ≥ 7ml / kg , PEEP sufficient , absence of cardiac arrhythmia and effective sedation ) . To date , no index can be used for all patients with invasive mechanical ventilation. It therefore seems appropriate to develop new tests to predict the response to volume expansion in children with septic shock hospitalized in pediatric intensive care. A recent study has validated a test to predict the response to volume expansion in adults: injection of a mini-bolus of 50 ml of saline over 10s. The aim of the study is to evaluate the effect of mini bolus fluid to predict response to fluid expansion in pediatric septic shock.

The incidence of sepsis (severe infection) has increased over the last four decades. Severe sepsis and septic shock are among the leading causes of death for patients admitted to critical care units with mortality ranging from 20-70% depending on totality of organ dysfunction. Outside of antibiotics and good bedside care, little has changed in the management of this life-threatening problem. Therapeutic plasma exchange (TPE) involves the separation of plasma from whole blood. The removed plasma is 'exchanged or replaced' with either IV fluids, albumin, blood products or a combination thereof. The primary objective of this study is to evaluate the safety of the TPE intervention protocol within 24 hours of study criteria being met. TPE is now a well-established program at the South Health Campus for neuro-muscular disorders. Since starting in May 2018, the investigators have performed over 150 runs making the SHC ICU one of the most experienced centers in Canada.