Critical Illness
Conditions
Brief summary
GCX damage and its relationship to pharmacodynamics and pharmacokinetics of beta lactam antibiotics in critically ill Hypothesis to be tested: GCX damage impairs pharmacodynamics and pharmacokinetics of beta-lactam antibiotics in critically ill patients. There is correlation between GCX damage and insufficient beta lactam levels in patients with commonly used dosing. The aim of the study: Evaluation of relationship between GCX damage and pharmacodynamics and pharmacokinetics of beta-lactam antibiotics in critically ill. Type of the study: Observational. Subjects: Adult patients admitted to ICU with beta-lactam antibiotic therapy (meropenem or piperacillin/tazobactam empirically or based on culture results). Sample size calculation: 20 patients (expected correlation coefficient 0,6, alpha error = 0,05) will lead to power study = 0,89. Intervention: none. Data to be recorded and analyzed: Demographics, type of patients (trauma, post surgical, medical, after cardiac arrest), severity score - Apache II, SOFA, fluid balance, a presence of delirium, clinical outcome, sublingual microcirculation by SDF imaging will be recorded three times during antibiotic treatment at the time points for blood samples required for pharmacodynamics and pharmacokinetic analysis, microcirculatory data and Perfused Boundary Region.
Interventions
Patients will receive intravenous antibiotics eighter empirically or based on a culture.
Sponsors
Study design
Eligibility
Inclusion criteria
* Adult patients admitted to ICU with beta-lactam antibiotic therapy (meropenem or piperacillin/tazobactam empirically or based on culture results).
Exclusion criteria
* None.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Plasmatic concentrations of antibiotics | 6 months | Concentration of antibiotics will be assessed in plasma after their administration in mmol/l to calculate their pharmacokinetic and pharmacodynamic profile. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Perfused Boundary Region | 6 months | PBR is a parameter obtained automatically by specialized software after examination of the sublingual microcirculation by handheld microscope that describes the amount of glycocalyx destruction. |
Countries
Czechia