Procalcitonin Monitoring Sepsis Study
Severe SepsisSeptic ShockThe purpose of this study is to investigate the relationship between a procalcitonin decrease over 72 hours and outcome in patients who have severe sepsis or septic shock.
Outcomes of Severe Sepsis Patients in Surgical Intensive Care Units
Severe SepsisSeptic ShockRetrospective review of the outcomes of severe sepsis patients in Surgical Intensive Care Unit of National Taiwan University Hospital from January 1, 2009 to December 31, 2011.
Validation of a Urinary Biomarker as Diagnostic Tool for AKI in Sepsis
Sepsis at Intensive Care UnitBACKGROUND: Early diagnosis and prognostication of acute kidney injury in patients with sepsis is key to further our understanding this disease and in the evaluation of new interventions for this condition. Many urinary biomarkers have been proposed, but no single one seems to consistently provide additional information on top of clinical and routine biochemical parameters. Some authors have proposed to use a panel of urinary biomarkers to increase the accuracy However, this approach has so far not been tested in a large group of patients with sepsis. In addition, newer and more performant analytical techniques have been developed that warrant testing in the clinical field. PATIENTS AND METHODS: At least 150 consecutive patients admitted to a tertiary care intensive care unit (ICU) with sepsis will be included. After bladder catheterisation, urinary samples will be collected at time points 0, 4 hours and 24 hours after admission, and further daily on day 1-5. Samples will be immediately centrifuged and frozen at -80°C until analysis. Samples will be extracted by removing larger proteins (>20kDa) and de-salting step prior to mass spectrometry analysis. Investigators will use capillary electrophoresis-mass spectrometry (CE-MS) to assess urinary peptides predictive of AKI: 20 peptides constituting the AKI marker pattern previously established from a cohort of ICU patients. Simultaneously, samples will be analysed using matrix-assisted laser desorption ionisation time-of-flight mass spectrometry (MALDI-TOF MS), an alternative platform to CE-MS, which is currently being developed for routine ICU use. A proof of concept of the technique involved has been successfully applied to a set of urine samples from patients diagnosed with diabetes presenting normoalbuminuria (controls) and macroalbuminuria (cases). Clinical, demographic and biochemical data of patients will be collected during the first 5 days. PATIENT OUTCOME in the short term: development of acute kidney injury according to RIFLE criteria death need for renal replacement therapy during ICU stay on the longer term death need for renal replacement therapy estimated glomerular filtration rate as calculated by MDRD at 3 months, 1 year and 2 years. Using cut-offs , Receiver Operating Characteristics curves, negative and positive predictive value will be used to describe diagnostic performance of the biomarker panel alone, or in combination with basic clinical and/or routine biochemical parameters. Univariate and multivariate logistic regression for death will be used to evaluate prognostication value of the biomarker set. In addition, new discriminatory cut-offs of proteomic patterns as determined by more recent proteomic analysis techniques will be determined in a training set (half of the cohort) and validated in the other half of the cohort. Using the MALDI-TOF MS platform, investigators will assess urinary peptides that were predictive of AKI in a training set (ca. 75 patients) with good diagnostic performance of the marker panel (accuracy above 0.8) . Performance of the biomarker panel will be assessed in a blinded test set of ca. 75 patients to evaluate validity of the model in AKI detection.
Therapeutic Effect of Sodium Selenite on Oxidative Stress in Patients With Severe Sepsis
Severe SepsisThis study looked at parenteral administration of selenium to septic patients and subsequently monitored dynamic changes of selected activities of antioxidant enzymes and the development of clinical status.
Relationship of Cerebral Perfusion Pressure Variability to Sepsis-associated Encephalopathy
SepsisThe purpose of the study is to evaluate whether variability of CPP (cerebral perfusion pressure) is related to sepsis-associated encephalopathy and outcomes of patients with sepsis.
Diagnostic Breath Analysis Study to Detect Sepsis
Puerperal: [Major Infection] or [Sepsis]Analysis of exhaled breath samples using a high-speed gas chromatography medical device will identify Volatile Organic Compounds (VOC) that are specifically associated with SIRS and Sepsis. Primary outcome measures will include the assessment of the zNose Diagnostic Breath Analysis System, which includes high-speed gas chromatography, in the early detection of SIRS and Sepsis as compared with current SIRS and Sepsis evaluation methods.
Systems Biology Approach to Cognitive Impairment After SepsiS
SepsisCognitive ImpairmentThis study will use systems biology techniques, especially RNA-seq, to understand cognitive impairment after sepsis requiring an intensive care unit (ICU) admission.
SEP-SEQ Trial - Determining the Etiology of Sepsis Using an Infectious Disease Diagnostic Sequencing...
SepsisThe purpose of this study is to evaluate the performance of the Karius Infectious Diseases Plasma Sequencing Assay in patients who present to the emergency room with sepsis.
Evaluation of Monocyte Volume Distribution Width (MDW) for Early Detection of Sepsis
SepsisSevere InfectionThe measurement of monocyte volume width distribution (MDW) is intended for use with adult patients presenting to the emergency department (ED), where a CBC with Differential has been ordered, as an aid in the early detection of patients with or developing sepsis. The study will establish the clinical performance of MDW for detection of sepsis in the ED.
Neutropenic Fever, Inflammatory Markers and Sepsis in Haematological Patients
SepsisThe aim of this study is to find out whether inflammation markers including cardiac markers have predictive value in evaluation of pathogenesis of sepsis in neutropenic haematological patients.