Bloodstream Infection, Sepsis
Conditions
Keywords
Culture-free, Whole blood, Molecular diagnosis, Sepsis, Bloodstream infection, Bacterial DNA
Brief summary
Rapid diagnosis of sepsis is crucial for treatment and survival. Currently, blood culture takes 48 hours-5 days to complete. After starting antimicrobial treatment blood culture results are not reliable. As a result, empirical broad spectrum antimicrobial therapy is mostly used. This implies possible antimicrobial over- or under treatment which is associated with increased antimicrobial resistance development. Early identification of the causative pathogen of sepsis will therefore have a major impact on the adequate treatment and reduction of high mortality rates. To date, there is not a single molecular diagnostic test available on the market to detect all putative causative bacterial pathogens of sepsis. In this study, the investigators will develop and validate a completely new molecular sepsis approach based on pathogen DNA detection, as an alternative to culture.
Interventions
None listed
Sponsors
Study design
Eligibility
Inclusion criteria
-Patients are included when routine blood cultures are ordered for diagnosis of bloodstream infections.
Exclusion criteria
-N/A
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Development and validation of rapid diagnostics tests for detection of bacterial DNA in sepsis | 2 years | The tests will report presence of bacterial DNA by giving a specific bacterial species name. |
| Patterns of bacterial DNA dynamics over time | 2 years | Use of species-specific qPCR primers (either from existing sepsis literature or to be designed) to quantify the DNA load at at least 3 different time points during an infectious episode. Comparison of these loads with infectious parameters used for routine diagnostics and with antibiotic use. |
Secondary
| Measure | Time frame |
|---|---|
| Distinguishing between the causative pathogen and contamination by a physician evaluation panel, both for the current gold standard (blood cultures) and the results of new microbiological tests for detecting sepsis pathogens | 2 years |
Countries
Netherlands