View clinical trials related to Shock, Septic.
Filter by:Purpose and rationale: Sepsis is a life-threatening organ dysfunction caused by a dysregulated host response to infection. Sepsis and septic shock are major public health problems killing one in every three patients. Microcirculatory dysfunction is frequent in septic shock. The duration and severity of this dysfunction have a prognostic impact by being associated with organ failure and mortality. Our study purposes to demonstrate the feasibility of optical coherence tomography angiography (OCTA) to improve assessment of microcirculatory dysfunction by showing that retinal and choroidal microcirculatory changes with prognostic impact are present during septic shock. Primary objective: To characterize the alterations of retinal and choroidal microcirculation in septic shock. We will test the hypothesis that retinal and/or choroidal microcirculation shows dysfunctional changes (lower vascular density, lower percentage of perfused small vessel, lower blood flow index and higher vascular heterogeneity) in septic shock patients. Secondary objective: To test the prognostic value of retinal and choroidal microcirculatory dysfunction in septic shock. We will test the hypothesis that higher magnitude and persistence of retinal and/or choroidal microcirculatory dysfunction beyond the successful macro-hemodynamic resuscitation are independent predictors of organ failure and mortality in septic shock patients. Study type: Two sequential observational studies. Study design: A cross-sectional case-control study followed by a prospective cohort study with a 90-days longitudinal follow-up period. Study population: 165 septic shock patients and 30 healthy controls. Study duration: 90 days from enrolment to final follow-up assessment. One to two years of enrolment.
Sepsis is the most common cause of acute kidney injury (AKI) in critically ill patients and is associated with a high mortality rate. Currently there is no available specific treatment to prevent or treat AKI in this setting. Many experimental and clinical data suggest that Nicotinamide, a safe and inexpensive vitamin, could be effective to prevent major adverse kidney events during septic shock. The main objective of the study is to show the superiority of Nicotinamide supplementation compared to the placebo group, in patients with septic shock admitted to intensive care. A 15% reduction in the incidence of major renal adverse events at day 30 is expected in the "Nicotinamide" group.
No randomized controlled trial (RCT) has investigated the effect of prophylactic fresh frozen plasma (FFP) transfusion in septic or critically ill patients with coagulation abnormalities. The last Surviving Sepsis Campaign therefore suggests with a very low quality of evidence "against the use of fresh frozen plasma during septic shock to correct clotting abnormalities in the absence of bleeding or planned invasive procedures". However, expert opinion highlights that FFP should be transfused "when there is a documented deficiency of coagulation factors (increased prothrombin time, international normalized ratio - INR, or partial thromboplastin time) and the presence of active bleeding or before surgical or invasive procedures". Disseminated intravascular coagulation (DIC) is responsible for such a severe deficiency of coagulation factors. Supplementing the intense deficit of coagulation factors with plasma containing non-activated coagulation factors is therefore a rational therapy in DIC patients. OctaplasLG® is a donor plasma product, with unique features compared to standard fresh frozen plasma: standardized concentrations of natural pro-/anti-coagulation factors; a standardized volume; pathogen free. OctaplasLG® should reduce the "inflammatory hit" on the endothelium, including the glycocalyx, by having standardized levels of coagulation proteins, which can give more sustainable support to the endothelial regeneration as compared to standard fresh frozen plasma.
Lipids and lipoproteins (cholesterol and lipid metabolites) are present in sepsis and are highly biologically active regulators of inflammation, but currently the changes in lipid and lipoprotein homeostasis during sepsis are not well understood. This project will investigate the changes in lipid and lipoprotein function, oxidation, metabolites, and changes in gene expression to further our understanding of dysregulated lipid and lipoprotein metabolism in sepsis. We will analyze a bank of samples and make associations with important clinical outcomes (early death, chronic critical illness and sepsis recidivism) as supported by our published work, and will confirm our findings in a small prospective cohort of sepsis patients.
This multicentre, randomised controlled trial will enrol 1000 patients presenting with septic shock to the emergency department (ED) of participating hospitals in Australia and New Zealand. Participants will receive haemodynamic resuscitation with either a restricted fluids and early vasopressor regimen or a larger initial IV fluid volume with later introduction of vasopressors if required. Clinical care including the type of resuscitation fluid and vasopressor agent, will otherwise be in accordance with accepted standard care and according to clinician discretion. The study intervention will be delivered for at least 6 hours and up to 24 hours post-randomisation. Participants will be followed for up to 12 months and outcomes analysed on an intention-to-treat basis.
Septic shock continues to exert a large economic burden around the world. Several developments have occurred that lead to the current study. First, angiotensin II is the newest FDA approved vasopressor agent indicated for use in vasodilatory shock. Several subgroups from the approval trial have indicated that angiotensin II may confer a survival benefit in certain conditions, including those patients requiring continuous renal replacement therapy, those with altered angiotensin I: angiotensin II ratios, and most recently, those with elevated renin levels (which may serve as a surrogate for dysfunctional angiotensin 1: angiotensin II ratios). This open-label, sequential period pilot study will evaluate angiotensin II and biomarker response (renin) in the treatment of septic shock.
Intensive Care Unit (ICU) patients are known to lose muscle mass and function for many reasons, ranging from prolonged immobilization, to the effects of ICU treatments such as mechanical ventilation (MV), to the critical illness itself. Ultrasonography (US) is widely used in the ICU setting and has greatly evolved in the last decades, since it allows the non-invasive assessment of different structures, using radiation-free and user-friendly technology; its application for the assessment or the skeletal muscle is a promising tool and might help detecting muscle changes and thus several dysfunctions during early stages of ICU stay. By using skeletal muscle ultrasound at both diaphragm and peripheral levels, the overall aim of this study is to improve knowledge in the early detection of muscle dysfunction and weakness , and their relationship with mechanical ventilation weaning and muscle strength, in critically ill patients suffering from septic shock.
Assessment of fluid responsiveness (FR) is to detect whether patient could benefit from fluid therapy. Mini fluid challenge has been widely used in clinical practice to prevent patients from volume overload. In clinical practice, 100 mL or 250 mL have been used most frequently and FR was defined as an increase in CO greater than 10% as much as the changes in CO after infusion of 500 mL. While using a half of volume infusion and assessed by the traditional standard of FR, this might misclassify more patients as nonresponders. In that it is imperative to test the predictive ability of mini fluid and find out the threshold of cutoff value. Meanwhile, in almost mini-FC, cardiac output were measured by echocardiography(VTi) and pulse contour,None of the studies conducted cardiac output (CO)measurement by gold standard method of thermodilution by pulmonary artery catheter (PAC). The correlation between new generated CO measurements and PAC varies in different studies as well. It is imperative to investigate the reliability of mini-FC to predicting fluid responsiveness(FR).The investigator's study is to detect the predictive minimal volume using thermodilution by PAC in septic shock patient.
Immunonutrition in intensive care has not yet demonstrated a beneficial effect on organ failure, the acquisition of nosocomial infections, or mortality. It did not correct for acquired immunosuppression in intensive care patients. Despite numerous methodological problems (use of several pharmaconutrients, very heterogeneous set of patients) and the absence of clinical data, deleterious effects have been attributed to immunonutrition in intensive care, in particular in septic patients and patients in intensive care . Arginine (ARG) is a semi-essential amino acid involved in many immunological mechanisms. It is synthesized in sufficient quantity under normal conditions but quickly becomes insufficient under catabolic conditions such as in severe sepsis. Arginine is not only the precursor of nitrogen monoxide (NO) but also an essential substrate for numerous enzymatic reactions which participate in the maintenance of immune homeostasis, in particular T lymphocyte function. Depletion of the cellular medium in arginine will induce an abnormality in the metabolism of immune cells responsible for a dysfunction of these cells (lymphopenia linked to early apoptosis) and thus expose patients to organ failure and nosocomial infections. It has been found that hypoargininemia in intensive care patients is associated with the persistence of organ dysfunction (SOFA score), the occurrence of nosocomial infections and mortality. Also, it has been demonstrated that in these patients, enteral administration of ARG was not deleterious and increased ornithine synthesis, suggesting a preferential use of ARG via the arginases route, without significant increase in argininaemia or effect on immune functions. L-citrulline (CIT), an endogenous precursor of ARG, constitutes an interesting alternative for increasing the availability of ARG. Sponsor recent data demonstrate that the administration of CIT in intensive care is not deleterious and that it very significantly reduces mortality in an animal model of sepsis, corrects hypoargininemia, with convincing data on immunological parameters such as lymphopenia, which is associated with mortality, organ dysfunction and the occurrence of nosocomial infections. The availability of ARG directly impacts the mitochondrial metabolism of T lymphocytes and their function. Our hypothesis is therefore that CIT supplementation is more effective than administration of ARG in correcting hypoargininemia, reducing lymphocyte dysfunction, correcting immunosuppression and organ dysfunction in septic patients admitted to intensive care.
this study is conducted to evaluate the role of the novel triple therapy combination in reducing the mortality rate, reducing the shock time, and reversal of organ damage. the study includes two arms, the first arm is the control which received hydrocortisone monotherapy and the second arm is the intervention arm which received the triple therapy regimen. calculation of 28 days in-hospital mortality is the primary outcome. shock time, vasopressor doses, infection markers, and organ function tests are the secondary outcomes. the data will be analyzed by student t-test or Mann Whitney test, Fischer exact or chi-square test for numbers, repeated measures ANOVA will be used to consider confounders and other parameters, mortality will be expressed by Kaplan Meier and ROC curve. For Multivariate analysis of repeated quantitative outcomes, linear mixed models were used to quantify the relationship between one dependent variable (SOFA, SCr, doses of vasopressors) and many independent variables including group type and sepsis phenotype adjusted to other clinical and demographic factors.