Assessment of Peritoneal Immune Response in Patients With Severe Intra-abdominal Sepsis Managed...
Abdominal SepsisProtocol Synopsis Protocol title: Assessment of peritoneal immune response in patients with severe intra-abdominal sepsis managed by laparostomy and VAC Purpose: Assessment of peritoneal immune response in patients with severe intra-abdominal sepsis Design: Prospective, single-center study Patient Population: Male or female adults (>18 years) with severe intra-abdominal sepsis No. of Subjects: 60 patients divided into two groups, 30 patients with severe intra-operative sepsis and 30 patients without sepsis scheduled to undergo major abdominal operations (middle line incision>15cm). The study is estimated up to 2 year to enroll Duration of Follow-up: Follow-up will be performed daily while hospitalized, until patient discharged or deceased. Endpoints: To measure the peritoneal cytokines levels in patients with severe intra-abdominal sepsis. To correlate the cytokines levels in the abdominal cavity and the serum plasma. To correlate cytokines response in serum plasma and peritoneal fluid with mortality and morbidity. To compare cytokines results in serum plasma and peritoneal fluid between patients with severe intra-abdominal sepsis and patients undergoing major laparotomy without sepsis. To assess the microbial load in the abdominal cavity in patients with severe sepsis. To assess the biofilm formation in VAC polyurethane sponge.
Sepsis Pathophysiological & Organisational Timing
Critical IllnessSepsisThis project proposes to measure delay to admission to Intensive Care (ICU). Delays in the United Kingdom NHS are widely reported possibly because there are fewer ICU beds than in many other developed health care systems. Patients are inevitably admitted with more severe illness. Scores measuring this severity are used for research and benchmarking. However, although patients deteriorate over time, severity is probably neither directly nor linearly related to the duration of illness. Instead it is likely that the characteristics of severity change with time. In sepsis there is good biological evidence of this so that there is an early pro-inflammatory stage followed by later changes in metabolic, neuroendocrine, and immune systems. In addition to examining the effect of duration of illness prior to ICU admission, the investigators will also therefore investigate how severity changes over time. SPOT(Light) is a prospective observational study. Treatment is not modified in anyway. Patients evaluated on the ward by critical care outreach teams, and subsequently admitted to critical care will be eligible. Severity of illness at the time of initial evaluation and eventual admission will be compared, and the effect of the duration of illness on 90 day survival investigated.
Endothelium in Severe Sepsis
SepsisSevere Sepsis1 moreThe overall hypotheses of this project is that severe sepsis is associated with endothelial dysfunction; that endothelial dysfunction, in turn, is predictive of subsequent organ failure and death; and that protocolized resuscitation attenuates endothelial cell (EC) dysfunction and improves patient survival.
Improved Detection of Neonatal Sepsis Using a Targeted Biomarker Assay
Neonatal SepsisThe purpose of this study is to determine whether analysis of specific serum biomarkers will improve the diagnosis of late onset neonatal sepsis and to determine the correlation between plasma levels of specific cytokines and bacteremia in NICU patients >3 days of age.
Procalcitonin and Endotoxin Sequential Levels to Optimize the Treatment of Bloodstream Infections...
Bloodstream InfectionBloodstream infections (BSI) are a major cause of morbidity and mortality. Bloodstream infections are also costly and result in prolonged hospital stays. The duration of therapy necessary to clear blood stream infections is unknown and no study has systematically addressed this issue. However, the use of antimicrobials is not without consequence. These include financial cost, side-effects, promotion of superinfection (especially Clostridium difficile-associated diarrhea), and the promotion of microbial resistance. This study hypothesizes that a procalcitonin (host biomarker) and endotoxin (microorganism biomarker) guided treatment plan could significantly decrease unnecessary exposure to antibiotics in patients with bloodstream infections.
Management of Early Onset Neonatal Septicaemia: Selection of Optimal Antibacterial Regimen for Empiric...
Early Onset Neonatal SepsisA prospective two-center antibiotic regimen switch study will be conducted to compare the clinical efficacy of two antibiotic regimens - penicillin/gentamicin versus ampicillin/gentamicin - in the empirical treatment of early onset neonatal sepsis. The influence of either regimen on bowel colonization pattern and on the development of antibiotic resistance of gut microflora will also be assessed. The primary endpoint is the need for a change in antibacterial treatment within 72 hours of therapy, based on pre-defined criteria. Secondary endpoints will be the incidence rate and etiology of early and late onset neonatal sepsis and susceptibility pattern of causative microorganisms; mortality rate within 60 days; duration of hospitalization in NICU; duration of artificial ventilation; colonization pattern and susceptibility of colonizing bacteria (including resistance to empiric antibiotic regimen).
Cortisol Control of Human Inflammatory Responses to Endotoxin
SepsisThe purpose of the research is to study a common and dangerous medical condition called 'septic shock' that often occurs in critically ill patients. In order to learn about septic shock in humans, we will administer a substance called 'endotoxin' to participants in this study. Endotoxin causes a temporary period of inflammation in the human body, a brief 'virtual' infection. This is an established method for the investigation of inflammation properties. We are interested in how the natural hormone, cortisol, can affect the human response to endotoxin. We know that when cortisol is given at the same time as endotoxin it can decrease the inflammation that occurs due to endotoxin. In this study we will test whether or not cortisol, when given the day before the endotoxin, will work to change the inflammation that occurs due to endotoxin. In order to test this, two-thirds of the study participants will receive cortisol on the day before they receive the endotoxin and one-third of the study participants will receive a placebo (no medication) before the endotoxin.
Ontario ICU Clinical Best Practices Demonstration Project
Ventilator Acquired PneumoniaCatheter Related Blood Stream Infections4 moreThe pragmatic issue at hand how to get physicians and nurses to use best practices… and how to measure consequences of their implementation. This is the science of "knowledge translation", which we are realizing is an "organic" entity. As part of our Critical Care Strategy our goal is to improve the quality and continuity of critical care within our health care system. Toward this goal we are implementing a program which links 16 Ontario hospitals through their critical care units in a Provincial Network.
Prevention of Perinatal Sepsis (PoPS): Evaluation of Chlorhexidine Wipes of Birth Canal and Newborn...
InfantNewborn3 moreThe purpose of this study is to evaluate whether use of the disinfectant chlorhexidine administered to the birth canal during labour and newborn at delivery can protect a woman and her baby from bacterial infections after birth. If effective, this could be used as an inexpensive alternative to antibiotics to prevent newborn infections in resource-poor countries.
Metabolomic Alterations in the Vascular Compartment in Patients With Sepsis
Endothelial DysfunctionThis study will investigate the metabolic alterations of vascular cells caused by sepsis and septic shock