View clinical trials related to Shock.
Filter by:Among critically ill patients requiring mechanical ventilation and catecholamines for shock, nearly 40% to 50% die, and functional recovery is often delayed in survivors. International guidelines include early nutritional support (≤48 h after admission), 20-25 kcal/kg/d at the acute phase, and 1.2-2 g/kg/d protein. These targets are rarely achieved in patients with severe critically illnesses. Recent data challenge the wisdom of providing standard amounts of calories and protein during the acute phase of critical illness. Studies designed to improve enteral nutrition delivery showed no outcome benefits with higher intakes. Instead, adding parenteral nutrition to increase intakes was associated with longer ICU stays and more infectious complications. Studies suggest that higher protein intakes during the acute phase may be associated with greater muscle wasting and ICU-acquired weakness. The optimal calorie and protein supply at the acute phase of severe critical illness remains unknown. NUTRIREA-3 will be the first trial to compare standard calorie and protein feeding complying with guidelines to low-calorie low-protein feeding potentially associated with improved muscle preservation, translating into shorter mechanical ventilation and ICU-stay durations, lower ICU-acquired infection rates, lower mortality, and better long-term clinical outcomes. This multicentre, randomized, controlled, open trial will compare, in patients receiving mechanical ventilation and treated with vasoactive agent for shock two strategies for initiating nutritional support at the acute phase of ICU management (D0-D7): early calorie/protein restriction (6 kcal/kg/d/0.2-0.4 g/kg/d, Low group) or standard calorie/protein targets (25 kcal/kg/d/1.0-1.3 g/kg/d, Standard group). Patients in both groups will receive enteral or parenteral nutrition appropriate for their critical illness. Two alternative primary end-points will be evaluated: all-cause mortality by day 90 and time to discharge alive from the ICU. Second end-points will be calories and proteins delivered, nosocomial infections, gastro-intestinal complications, glucose control, liver dysfunctions, muscle function at the time of readiness for ICU discharge and quality of life at 3 months and 1 year after study inclusion.
Circulatory shocks (CS) are life-threatening, acute organ dysfunction. Advances in critical care medicine have decreased early hospital mortality, increasing the number of surviving patients. Regrettably, these survivors are at increased risk of new infections but also of cardiovascular disease. The investigators hypothesize that CS with multi-organ dysfunction is associated with premature senescence of endothelial cells and immune cells and promotes endothelial thrombogenicity and immunosenescence leading to cardiovascular disease and secondary infections. The aim of this work is therefore to evaluate the contribution of endothelial and leucocytes senescence to the occurrence of secondary events (infectious and cardiovascular) in patients with a CS. It will provide a better understanding of the pathogenesis of cardiovascular and immune diseases following a CS, likely to guide new management strategies to prevent their occurrence.
Sepsis and septic shock are public health problems worldwide that represents an excessive cost for health systems. Despite the great technological and research advances, mortality can reach up to 80% in patients with multiple organ failure (FOM). Therapeutic studies focused on evaluating the usefulness of the use of antioxidants have shown different outcomes and results. This randomized clinical trial in patients with septic shock at two general intensive care units try to evaluate the usefulness of four different antioxidant therapies added to the conventional treatment, which includes: n-acetyl cysteine, vitamin C, vitamin E and melatonin. Measurement of parameters before and after treatment of oxidative stress includes nitrates and nitrites, lipid peroxidation, glutathione peroxidase, glutathione s transferase, extracellular activity of SOD, GSH concentration and evaluation of total antioxidant capacity. The investigators will also evaluate the clinical impact of antioxidant therapy with the SOFA score.
Each year approximately 3000 patients are admitted to the intensive care unit (ICU) in the University Medical Center Groningen (UMCG). In-hospital mortality of patients with emergency admission approaches 25%. Predicting outcome in the first hours after ICU admission, however, remains a challenge. An vast amount of scoring systems has been developed for mortality prediction. Well known models, such as the LODS, MODS, CCI, SOFA, ODIN and the different generations of the APACHE, MPM and SAPS, are increasingly compared with new models, such as the SICULA, ICNARC, ANZROD and SMS-ICU. The predictive value of scoring systems deteriorates over time due to changes in patient characteristics and treatment, making it crucial to update existing models or develop new models. Other reasons given for the need of models are the complexity and lack of availability of variables in some of the existing scoring systems, the better discriminating value while using simple, standardly measured variables, and the limited generalizability of some scoring systems in different patient populations. Not only are simple systems (such as the CIS and SMS-ICU) found to be at least as predictive for mortality as complex models such as the APACHE IV, but, while using simplified systems, mortality can also be reasonably predicted within only a few hours after admission. Both simplicity and the potential to predict mortality shortly after admission increase the usability, and consequently the reliability, of those prediction models. This increases the potential of those models to be used in practice. Most studies however compare only two to four models in their patient population and lack in their description of the performance of the different models. Parameters necessary to compare the performance of models are at least calibration, discrimination, negative predicting value, positive predicting value, sensitivity and specificity. Lacking an adequate description of the performance of the model limits to what extent the study can be used to compare models in different populations. Thus, all usable models should be compared with newly build models, and the performance of the different models should be extensively described to allow comparison of the models. Not only models based on simple, readily available variables available within hours after admission are promising, but also the concept of combining measurements straight after ICU admission with information on the course of illness. It is likely that the course of a variable over time is more indicative than a static measurement. This study will provide a structure in which every patient admitted to the ICU will be investigated and included within 3 hours and after 12 hours after admission, making longitudinal measurements and various add-on studies possible. Longitudinal measurements are the first example of an add-on study; another example is the capability of nurses and physicians to predict outcome. Current evidence suggests that physicians might predict mortality more accurately than scorings systems. This finding may, however, be highly biased, since at least physicians play a major role in end-of-life decision making. More recent studies also focus on the accuracy of nurses in predicting mortality, with diverse outcomes. The role of other health care professionals, like residents and students, remain to be studied. Implementing a systematic data collection process is the first step towards making data-driven research possible, a growing need in medical disciplines such as critical care, which requires increasingly more accurate prognostic models. Therefore, the aim of this study is to systematically collect data of all selected variables, thus minimizing incompleteness, and allowing for the calculation of mortality prediction scores according to currently available mortality or severity of disease prediction models. Moreover, during investigation reliability of measurements could be checked for validity. This creates the possibility to compare the performance of all models in one population and identify models which are useful to predict severity of disease. A registry will be created with this primary objective which also provides the opportunity to start multiple ''add-on'' studies for specific research questions. Examples of add-on studies are 1) the association between time-dependent variables which are longitudinally measured, and mortality/acute and chronic co-morbidity, 2) the association between fluid status and acute kidney injury, and 3) not only the capability of the treating physician to predict mortality, but also the capability of the nurses, residents and students to do so. Purpose: The purpose of this study is to expand the infrastructure for a registry with longitudinal and repeated measurements, shortly after admittance, which is flexible to incorporate temporarily added specific research questions on the outcome of critically ill patients.
Multicenter randomized double blind trial comparing intravenous cangrelor and oral ticagrelor in patients with acute myocardial infarction complicated by initial cardiogenic shock and treated with primary angioplasty.
Septic shock is one of the leading causes of death in patients admitted to the intensive care unit (ICU). Acute kidney injury (AKI) occurs in almost 50% of septic patients and is associated with significant mortality. Progression to the last stage (KDIGO stage 3) of AKI is an important step in the disease, as it usually requires initiation of RRT. Renal biomarkers are unable to accurately identify those patients who will progress to severe AKI (KDIGO 3). However, identification of patients at risk of progression to severe AKI could help the clinician to initiate optimal therapy including RRT. A new urine test, the Nephrocheck™ corresponding to the product of the urinary concentrations of 2 markers of renal tubule injury (TIMP2 and IGFBP7) has been validated. The Investigator have already performed two previous studies including septic shock patients (AKICHECK and BIOOCHECK). those previous datas will be reanalysed to examine whether the new urinary biomarkers TIMP2 and IGFBP7 can predict progression within 24 hours and 72 hours from mild and moderate (KDIGO 1 or 2) to severe AKI (KDIGO 3) in patients with septic shock. -All the datas required will be collected from two previous studies (AKICHECK and BIOCHECK) performed in 3 centers: Amiens medical ICU, Melun medico surgical ICU and Montpellier Medical ICU.
The purpose of this research study is to determine whether patients who receive thiamine (vitamin B1), vitamin C and hydrocortisone while in septic shock have improved outcomes compared to hydrocortisone alone. A recently published article "Hydrocortisone, Vitamin C and Thiamine for the treatment of Severe Sepsis and Septic Shock," suggested substantial mortality reduction (78%). We wish to test the hypothesis that mortality reduction is at least 25% in a prospective randomized trial. Other important sub-aims include the testing whether the protocol reduces the time on pressors agents, reduces the trajectory of the SOFA score, or reduces the trajectory of procalcitonin.
It is reported that high mobility group box 1 (HMGB1), a non-histone nuclear protein, can serve as an alarmin with damage associated molecular patterns to activate immune responses in the early stages of hemorrhagic shock (HS). However, the origin of HMGB1 and how it is released following HS is poorly understood. In this study, we teased out this mechanism. We try to record the concentration of serum HMGB1 protein following HS in clinical patients.
The purpose of this multicenter prospective study is to determine if the decision of transient circulatory support (TCS) in cardiogenic shock is relevant. TCS is a recommended treatment of refractory cardiogenic shock but precise indications are not definitively founded. Some studies described patients with TCS in order to establish mortality predictive scores (ENCOURAGE, SAVE), but no study has assessed the clinical relevance of the TCS decision yet. Therefore, The investigators propose to compare the characteristics and the follow-up of patients in acute cardiogenic shock, once TCS implantation was decided or not by the heart team.
ULIS-1 is an open-label pilot study concerning utility of molar sodium lactate in fluid balance in septic shock patients