elective surgery under general anaesthesia with propofol and requiring an arterial line for invasive blood pressure monitoring as part of their clinical care Target-Controlled Infusion,propofol,pk/pd
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: -Age between : 18 years and 75 years -Informed patient consent -ASA Class (American Society of Anesthesiologists physical status) I- III - Scheduled for elective surgery under general anaesthesia with propofol and requiring an arterial line for invasive blood pressure monitoring as part of their clinical care will be enrolled.
Exclusion criteria
Exclusion criteria: •patient refusal •CNS diseases (dementia, CVI, seizures, psychiatric diseases) •Regular intake of CNS active drugs (benzodiazepines, antidepressants, antipsychotics, anticonvulsants) •Regular intake of opioids (morphine > 30 mg/day) •Relevant hepatic disease (Child B or higher) •Body mass index (BMI) 35 kg/m2 •Pregnancy, or currently nursing •Overt signs of alcohol abuse •Contraindications or allergies to the drugs used in the study •Expected blood loss during surgery > 2000 ml
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| We hypothesize that online adaptation or individualization of the population PKPD model of propofol will decrease the residual error between predicted and measured plasma-concentrations during maintenance of anaesthesia, when the adapted PKPD models are used to calculate propofol infusion rates required for the plasma concentrations set by the responsible anaesthetist | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondly, we will compare the hypnotic and haemodynamic stability before and after the adaptation as measured by EEG and other vital signs clinical monitoring | — |
Contacts
Hanzeplein 1