View clinical trials related to Shock.
Filter by:Haemodynamic optimization is of paramount importance in septic shock, but is really consensual and standardized during the first 6 hours of treatment. Haemodynamic treatment including fluid loading management, vasoactive treatment and oxygen transport optimization is mainly based on expert recommendations or non-randomized trials. Recently, preload dependence indexes such as pulse pressure variation have been shown to be more accurate to predict fluid responsiveness than static indexes such as filling pressures. However, whether using preload dependence indexes changes septic shock prognostic remains to date unknown. The aim of this non-blinded randomized controlled trial is to assess whether haemodynamic optimization using preload dependence indexes and pulmonary thermodilution 1. reduces septic shock duration assessed by administration duration of vasoactive treatment (primary end point), 2. reduces regional hypoperfusion assessed by arterial lactate, 3. reduces lung hydrostatic oedema linked to excessive fluid loading (assessed by PaO2/FIO2 ratio and extravascular lung water). 4. reduces organ dysfunction (assessed by the SOFA score), ICU stay and 7 and 28 day mortality Control group is managed with an algorithm using filling pressures to drive haemodynamic treatment.
Septic shock has a high mortality risk despite the availability of various treatments. Endotoxin, that is present in the cell walls of gram-negative bacteria, is a potent trigger of innate immunity. Endotoxin leads to an activation of a cascade with an overwhelming systemic overflow of pro- and anti- inflammatory mediators at the early phase of sepsis with generalized vascular endothelial damage, tissue injury and multi-organ failure. Extracorporeal blood purification therapies aim to reduce the circulating level of endotoxin. Different extracorporeal blood purification systems are available. The oXiris™ device comprises a surface treated AN69 membrane capable to adsorb a large spectrum of plasma cytokines, such as IL-6 and HMGB1 protein. The positively charged inner surface of the membrane allows absorbing negatively charged bacterial products such as endotoxin. From an historical perspective, filters containing AN69-based membranes have been the most commonly used products for CRRT in the management of critically ill patients and a substantial volume of published data exist. Another extracorporeal endotoxin removal therapy is the hemoperfusion with ToraymyxinTM (PMX) filter, which is a cartridge selectively removing blood endotoxin. PMX is composed of polymyxin B covalently bonded to polystyrene-derivative fibres. It is well known that the polarity of the polymyxin B antibiotic binds endotoxin and has bactericidal activity. Therefore, the rationale underlying extracorporeal therapy with PMX is to remove circulating endotoxin by adsorption. - Trial with medical device
To investigate the role of initial venous lactate in predicting the severity progression to overt septic shock and 30-day mortality in non-elderly patients without hemodynamic shock who suspected to have acute infections.
Current septic shock guideline recommends fluid resuscitation as the first treatment. Vasopressors, including norepinephrine is recommended to start after achieve adequate fluid therapy. This can cause a certain duration of systemic hypotension before vasopressor is commenced. Initiation of norepinephrine together with fluid therapy soon after diagnosis of septic shock may increase blood pressure quicker than start treatment with intravenous fluid alone. The rapid restoration of perfusion pressure may improve septic shock outcome.
The study compares the therapies of instant multivessel balloon angioplasty plus stent implantation or the balloon angioplasty plus stent implantation of the infarct artery alone with any possible graduated later treatment of the other vessels in patients with acute myocardial infarction with cardioganic shock. The main study hypothesis is to explore if culprit vessel only PCI with potentially subsequent staged revascularization in comparison to immediate multivessel revascularization by PCI in patients with cardiogenic shock complicating acute myocardial infarction reduces the incidence of 30- day mortality and/or severe renal failure requiring renal replacement therapy.
Implantable cardioverter defibrillators (ICD) may have the capacity to provoke or worsen ventricular tachyarrhythmias (VT). It has been reported that ICD shocks by itself can increase mortality. This study aimed to determine the role of back-up pacing-induced VT (PIT) to the overall ICD shock burden by avoiding pause-related ventricular back-up pacing by programming the pacing output to a sub-threshold level for ineffective pacing.
Across the world, the most common cause of dying in the ICU is a disease called "sepsis". Sepsis is a disease in which the body's protective response to infection becomes too intense, unnecessarily damaging important organs in the body. Kidney damage during sepsis is particularly bad, as a person's chance of survival drops significantly when he or she develops kidney failure. This study plans to learn more about how to detect (and thus prevent) kidney failure early in sepsis. The current tests doctors use only detect kidney failure once it's already happened. We must therefore find better ways of detecting kidney failure earlier, when there is still a chance to protect the kidneys. In this study, patients will provide a one-time sample of urine. We will check this urine for signs of a protein called "heparanase", which we believe is important in early kidney failure. We will then see if high heparanase activity in urine predicts the risk of developing kidney failure. We will compare results from patients with sepsis with results from patients with trauma, allowing us to determine if heparanase is only important in sepsis kidney failure.
Prospective, randomized, single-center, controlled, open-label Pilot-study to investigate whether induction of mild hypothermia in addition to primary percutaneous coronary intervention and optimal medical therapy in myocardial infarction complicated by cardiogenic shock improves cardiac power index after 24 h.
Sepsis is a significant cause health care expenditure and carries an extremely high rate of morbidity and mortality if not treated appropriately. From 1979 to 2000, sepsis resulted in over 10 million admissions to hospital in the United States with a mortality rate of 17.9 to 27.8 percent. In Canada, it is estimated that the incidence of sepsis from 2008-2009 was 103.3 per 100,000 per year. Advances in the multifaceted management of sepsis in recent years have resulted in improved clinical outcomes. However, the cornerstone of sepsis management relies on the prompt administration of appropriate antibiotics. Current clinical practice suggests that antibiotic administration can be delayed up to 45 minutes in order to obtain blood cultures, whose results have a profound impact on the type and duration of antimicrobial therapy. Unfortunately, this recommendation is based on very little evidence and the investigators have found that potential life-saving treatment is often delayed in order to abide by it. Furthermore, recent data suggest that mortality could be increased by approximately 5% by delaying antibiotic administration for that time period. The investigators therefore wish to organize a prospective, multi-centre trial in order to identify the effect of antibiotic administration on blood culture positivity in patients presenting with severe sepsis or septic shock. Other objectives will be to elucidate which patient factors, including age, co-morbid conditions and clinical presentation, as well as antibiotic choice will affect blood culture results. This study will be conducted in the emergency departments at St. Paul's Hospital (SPH), Vancouver General Hospital (VGH), Lion's Gate Hospital (LGH), Surrey Memorial Hospital, Montreal General Hospital (MGH), Royal Victoria Hospital (RVH) and Maricopa Integrated Health System. Patients identified for the aforementioned conditions will be treated as per routine hospital protocol. If the patient is deemed eligible for the study, a second set of blood of blood cultures will subsequently be drawn ideally between 30 and 60 minutes after the administration of antibiotic therapy. Subject demographic data will be collected pertaining to age, comorbid immunocompromised conditions, vital signs, laboratory tests pertaining to end organ dysfunction, suspected source of sepsis, the type antibiotics administered and the timing of antimicrobial administration with respect to the second set of blood cultures taken. Our hypothesis is that blood culture positivity in patients presenting with severe sepsis and septic shock will not be altered significantly by antibiotic therapy. If so, our study would strongly argue against delaying life-saving therapy and would thus greatly improve patient care in our local emergency rooms. If incorrect, our study would be the first to demonstrate the benefit of obtaining blood cultures before antibiotic therapy and would strengthen current recommendations.
The investigators will conduct a prospective randomized double blind study comparing methadone plus methadone and intraoperative dexmedetomidine in multi-level spine surgery in two randomized groups. The investigators plan to document the intraoperative opioid requirements, time to first dose of opioids postoperatively and total opioid consumption in the first 24, 48 and 72 hours. The incidence of intra and postoperative complications will be assessed.