Study of the Function of Cells Involved in Inflammation in the Lungs of Those With Acute Lung Injury...
SepsisAcute lung injury (ALI) is an often deadly form of respiratory failure caused by inflammation. The widespread injury to the lungs involves a build-up of fluid in the lungs that results in damage to the lungs and a decreased ability of the lungs to function properly. There is currently no specific treatment for ALI; and of the 200,000 cases reported in the US yearly, about 40% will die. Some patients may have other conditions that could change the risk of developing ALI. For example, it has been reported that patients who have septic shock have a lower chance of developing ALI if they also have diabetes mellitus (diabetes). Septic shock is a type of infection that causes overwhelming inflammation to occur throughout the body; it increases the chances that a person will develop ALI. The reason diabetics are less likely to develop ALI is unclear and deserves further investigation. The investigators believe that it may be explained by differences in the way certain cells that are involved in inflammation function in the lungs. The investigators plan on looking at the relationship between the wide-spread inflammation that occurs within the bodies of diabetic and non-diabetic patients with an increased chance of developing ALI [sepsis]. To study this relationship, we will identify patients who fit the requirements of the study. The investigators will obtain blood samples and lung washings from these patients. The lung washings will be obtained by injecting clean salt water into the lungs through a tube and then pulling the water back out. When the sterile water is removed, some cells from the lungs also are removed and they can then be used for further lab studies. Determining how diabetes may change a patient's chance of developing ALI may uncover useful information that may help prevent or treat ALI in all patients at risk.
Immune Activation, Hypoxia and Vasoreaction in Sepsis of Pulmonary Versus Abdominal Origin
SepsisSepsis remains a common entity in critical care patients with remarkable mortality. Pulmonary and abdominal infections (with subsequent sepsis) are the most common in the ICU. Despite extended research activities, no differences in patient outcome or organ dysfunction were revealed. Sepsis is a complex immune reaction phenomenon based on unbalanced activation and suppression. In addition to changes of cytokine levels and immune cell activity, underlying genetic reactions are present. For instance, expression of miRNA (as a potential important step of immune cell activation) is likely changed during systemic and local immune reactions. The aim of this study is to perform a detailed assay of immune cell activation, to investigate the levels of pro- and antiinflammatory cytokines and the various expression of miRNA depending on the origin of infection in the two most common sides. This means in ICU patients with early pulmonary or abdominal sepsis as well as in healthy controls. Additionally, clinical parameters of organ function, current infection markers as CRP and procalcitonin, cardiovascular function and heart rate variability will be assessed. Parameters of local tissue perfusion in a dynamic testing during forearm ischemia and plasma adenosine concentration will be measured.
Influence of Acute Respiratory Distress Syndrome (ARDS) and Severe Sepsis on sRAGE Levels in ICU...
Acute Lung InjuryAcute Respiratory Distress Syndrome3 moresRAGE, the soluble form of the receptor for advanced glycation end products, is a novel marker of alveolar epithelial type I cell injury, but is also involved in acute systemic inflammation. The purpose of this observational prospective study is to determine whether sRAGE could be used in an ICU setting as a potential diagnostic and prognostic marker during ALI/ARDS, regardless of associated severe sepsis or septic shock.
Ambisome® Preemptive Treatment of Multiple Candida Colonization in Sepsis Patients
SepsisCandidaTo assess the safety of Ambisome 10 mg/kg/week in patients as a preemptive treatment in intensive care patients with a sepsis and rising candida colonisation. Preemptive treatment (i.e., prophylactic treatment with two high doses of Ambisome® administered with an interval of one week, in patiens with a high risk of developing a fungal infection) should decrease the incidence of actual systemic infections. The incidence of such actual fungal infections will be assessed directly and its impact on patients' survival and intensive care resourches assessed
Serial Vasopressin and Copeptin Levels in Children With Sepsis and Septic Shock
SepsisSeptic ShockPatients with severe infection can develop very low blood pressure. There are many mechanisms leading to this, and one of them appears to involve a hormone called vasopressin. In children as compared to adults, the mechanism and response to low blood pressure are different for reasons that are not clear. One possibility is the difference in the production and/or response to vasopressin. Vasopressin has become part of the treatment of children with low blood pressure in the setting of severe infection, when other treatment has failed, but its use is on the basis of animal and adult studies. The exact timing and dose is uncertain. In this research study, the patients will receive standard treatment for sepsis and septic shock, and the investigators will measure the blood levels of vasopressin and a related compound called copeptin (both are required to understand the mechanism of control involved). Blood will need to be taken from patients without any sepsis so as to be able to compare the values in health and in sickness. The patient groups the investigators have chosen for this are those children who will have blood taken anyway as part of their routine care. The aim of this study is to develop an understanding of the body's hormonal response (with respect to vasopressin) to severe infection in children. The long-term aim is to improve the care of critically ill children with severe infection by using the most appropriate dose of vasopressin at the most appropriate time.
End-of-life Decision-making in Patients With Sepsis-related Organ Failure
Severe SepsisThe care of patients with sepsis-related organ failure on the intensive care unit (ICU) often includes end-of-life decision (EOL-D) and communication of such decisions to relatives. This increases the psychological burden for caregiver and relatives. The investigators intend to assess the prevalence and impact of EOL-D on ICU care-givers and relatives ("before") and to use this data to develop and implement standard operating procedures (SOPs) for improved decision-making and communication of these decisions ("after"). The hypothesis is that an improved communication strategy will reduce symptoms of burnout in caregivers and symptoms of anxiety and depression in relatives.
Influence of Cytosorb on Amount of Catecholamine and Mortality in Sepsis
SepsisSeptic Shock3 moreThe aim of this retrospective study was to identify if the enrolled patient might have had a profit of Cytosorb therapy. Primarily the decline in catecholamine therapy under Cytosorb therapy will be investigated. Secondarily the outcome of surviving patients will be evaluated and compared to expected mortality due to sequential organ failure assessment (SOFA). Thirdly the patients deceased under this therapy were compared to the surviving patients.
Effect of Renin-Angiotensin System on Platelet in Patient With Sepsis
SepsisAs a common and serious medical condition , sepsis is a life-threatening organ dysfunction caused by a dysregulated host response to infection , which is a major and familiar cause of death in intensive care units(ICU). As a frequent laboratory abnormality in patients with sepsis , thrombocytopenia on intensive care unit admission is independently associated with increased mortality in patients. Furthermore, a low platelet count is a marker with further significance , which is always used for evaluating the prognosis of patients. Herein, this study aimed to investigate the effect of renin-angiotensin system on thrombocytopenia in patient with sepsis and explore the possible underlying molecular mechanisms.
The Effects of Different Lipid Emulsions on the Adipokines in Critically Ill Patients With Sepsis...
SepsisIntravenous lipid emulsions contain a number of biologically active ingredients, but the most important are fatty acids. Different fatty acids can affect a number of different physiological processes in different ways in critically ill patients. Adipose tissue can play an important role in metabolic changes of critical illnesses and in adaptation to stress through structural as well as functional changes Although it is known that serum adipokine and cytokine response changes in critical sepsis patients, the factors affecting these changes and the metabolic consequences of these changes are not well defined. The aim of this study was to evaluate the effects of intravenous lipid emulsions on serum adipokine and cytokine levels in patients with sepsis. Secondly, this is to determine the adipokine and cytokine kinetics in the sepsis process and their relationship with mortality in patients with sepsis.
Mitochondrial DNA as a Biomarker of Sepsis Severity
Sepsis SyndromeSepsis3 moreMitochondria are organelles (a specialized subunit of a cell) responsible for providing cells with energy. For reasons not yet understood, mitochondria will release their DNA into blood in response to cellular injury or cell death. With a simple blood draw, investigators can measure the amount of mitochondrial DNA in a patient's blood. The investigators' hypothesis, is that mitochondrial DNA can be used as a surrogate marker of cellular injury to predict patient outcomes. The investigators intend to test their hypothesis by measuring mitochondrial DNA in adult patients presenting to the Emergency Department with sepsis (a life-threatening condition due to an infection) and observing their hospital course.