Cardiac Disease, Delirium
Conditions
Keywords
delirium, cardiac surgery, postoperative sedation
Brief summary
The objective of this study is to reduce the incidence of postoperative delirium after cardiac surgery in the elderly patient. This proposal is a clinical trial designed to reduce delirium in patients undergoing cardiac surgery by replacing standard postoperative sedation protocols (propofol, midazolam, opioids) with a new alpha2-adrenergic receptor agonist (dexmedetomidine) possessing sedative, analgesic, and antinociceptive properties. Resource utilization analysis will be performed to determine cost effectiveness of the new treatment modality.
Detailed description
The proposed study will be a prospective, randomized, open label study comparing multimodal protocols for postoperative sedation after cardiac surgery. Patients will be randomly allocated to either dexmedetomidine or propofol (control) groups according to a computer generated randomization code in predetermined size blocks of four.
Interventions
Upon arrival to ICU patients will receive a propofol 2-6mg/kg infusion until tracheal extubation
Upon arrival to ICU patients will receive dexmedetomidine bolus of 0.4mcg/kg followed by an infusion of 0.2-0.7mcg/kg per hour for a maximum period of 24 hours.
Sponsors
Study design
Eligibility
Inclusion criteria
* Age ≥60 years, undergoing high risk cardiac surgery, signed informed consent.
Exclusion criteria
* Patients with symptomatic cerebrovascular disease, history of delirium, schizophrenia or preoperative use of psychotropic medications.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Dichotomous outcome, a number of patients with delirium in the two study groups. | up to 7 days postoperatively or discharge | Assessment of delirium will be performed utilizing the CAM-ICU |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| The total cost for each patient | Up to 7 days or discharge | Summation of direct-variable, direct-fixed, and overhead costs |
Countries
Canada